300zx compression test

300zx compression test. I started out with the following c Anyone know if it's possible to compression test an engine not in the car??? If it is possible how is it done, I have a tempoary engine to put in the car and want to make sure it's ok before I spend a few days doing it. Thanks westpak, the reason i got the compression tested was when i accelerate its a huge delay before i have any speed. Parts; Wheels & Tires; Exterior; Lighting; Body Parts; Interior ; Audio & Electronics; Automotive Tools; Specialty Shops; home; All Products; Automotive Tools; Basically the higher you go with compression ratio, the lower you go with boost to run at the same octane. Other users reply with suggestions, Compression test of a newly rebuilt Na motor for the 300zx (vg30de) Okey so during the making of the video the battery died on us and i have to get a fresh o Seb Dyno Tunes a 300zx Twin Turbo, he also talks about the in house made aluminum radiator Shroud Cover for the Nissan 300zx Platforms. Facebook; Smoking z32! Z32 Newbie needing help. This highlights the golden rule of compression testing of composites: It is not what method you choose, so much as ensuring it is used correctly that leads to accurate and reliable test results. S. i have had all yr problems too,had my turbos re-coned and had a rear Compression Testing in Universal Testing Machine (UTM) The Universal Testing Machine (UTM), also known as a Universal Tester, Materials Testing Machine, or Tensile Testing Machine, is a versatile piece of equipment that can perform multiple types of mechanical tests, including compression tests. Clearly it is a very clever and quick way of isolating an individial cylinder for fault finding and small testing purpose`s but as MantaV8 said other failings such as a poor spark plug, poor injector or connections, low output coilpack etc, etc can result in a low I'll be getting a compression test done soon on the '92 TT I'm after: could anyone give me an idea of what sort of results are acceptable? Is anything less than a perfect result bad news, or is there some tolerance? Oh, and is £50 +VAT a good quote for the job? Thanks, Raz COMPRESSION TEST: Since you already have your plugs out because you are changing them to the proper plug and gapping them to the right spec, you are already set to perform a compression test. have you OHMed your injectors and done a compression test? Under hard acceleration you aren't going to notice it as much, because RPMs will be rotating too fast to notice. Thank, hopefully someone can help. 8. netI am A good mechanic can leakdown test your engine. Is this normal? Stealth. Also, when I did the compression test and had the plugs out,#2 cylinder had "puffs" of fuel coming out of the plug hole, but nothing out of the other ones. I found a guide on here and followed it to the letter and this is what I got: Cylinder 1 = 70 (drivers side front) Cylinder 2 = 65 (drivers side middle) Cylinder 3 = 50 (drivers side back - closest to cabin) Cylinder 4 = 10 (pass side front) Cylinder 5 = 25 IMO, a compression test these days should only be used if there is reason to think there is internal damage - like a slightly bent rod or a damaged valve. If your shocks did not come Rotary Compression Tester RCTV5. Best Basic Compression Tester: INNOVA Compression Tester; 3. With the throttle plate wide open I'm getting dry readings on all cylinders at around 125-130psi, a far cry from the 160+ the book states. My compression numbers were 140-150. 6, 179) / 300 Minimum = 1,040 (10. That's where I would start at Cars: 1975 280z, 1987 300zx *sold* Report; Share; Posted January 20, 2014. Any hell would be appreciated! Cheers Quote; Link The Nissan 300ZX is a sports car that was produced across two different generations. 2013 WRX 115K miles, CAI, Turbo Back, Stage 2 tune. Do a compression test also. 800-505-3274. For instance with our factory compression ratio of roughly 8:1 we can push 10-15 psi safely on 91-93 octane fuel. Do you have an NA 300zx that you would rather turn into a TT than do a full TT swap? The na Z32 can be made to use turbos, and here is what you need to know They then did a compression test and said the #2 had low compression. Editor’s Pick: BlueDriver Compression Tester Kit; 2. Unknown member. Motorsports. Jump to Latest 21K views 3 replies 3 participants last post by nicolastella May 25, 2011. This should bring the numbers up a little bit. Since its introduction in late 1989, it's earned a spot on two straight Ten Best Cars Well to me it sounds like you are loosing compression on a cylinder. . Would be great to get the ole girl purring again, so let's start with some b Knowing I need to rebuild my engine, I wanted to test out the engine restorer by Restore just for fun and see the results. You can also compare the readings to each other. By Guest Coogs April 4, 2002 in General Discussions - 300ZX Related. Not looking good, all over the shop as far as psi tolerances are concerned. If the valve is vacuum operated, simply take a vacuum pump and see if it opens and closes with vacuum. the only mods ive done at this point is a Borla catback exhaust system. While compression testing doesn’t necessarily fall under the umbrella of the valvetrain check, now is a great time to do a compression test. Working on 1988 300ZX Turbo. 58K subscribers. Take the same test light that you used for the previous test, but this time connect the alligator clip to the positive terminal on the battery instead of the negative. The 1984 to 1987 turbo models featured a Garrett T3 turbocharger with a 7. After running the car for a while, and setting all the valve lash properly, and playing with the triple Weber set-up, I did another compression test. 1988 300ZX Turbo Posts: 2 Joined: Sat May 02, 2015 10:02 am Car: 1988 300ZX Turbo. 240sx_brett Posts: 24 Joined: Mon Mar 14, 2011 9:06 pm. I did just sent off my injectors for cleaning. RB25DET compression question. i know i need to put the gauge in place of the spark plug and turn the ignition but what else? Jump to content General Discussions - 300ZX Related 1990 nissan 300zx no compression on driver side, recently replaced all valves, and gaskets. My advice, do it before you pull the heads, because you may be doing all that work for nothing. I'm going to guess the independant mechanic didn't know what he was doing when he did the compression test. Each compression test machine is configured to your testing needs by our application engineers with the correct 300ZX for Sale; Parts & Tool Guides. Do you have an NA 300zx that you would rather turn into a TT than do a full TT swap? The na Z32 can be made to use turbos, and here is what you need to know Jump to content. 300ZX (Z32) Performance / Technical - compression test - I'm considering buying a 90' 300zx with 140k on the clock. By I’ve got a compression test booked in for next week, but I was wandering if anyone else could suggest anything? the smoke is a mix of white, grey and blue! So confusing as hell. Compression test: 1 - warn the car up to normal running temp (should take about 10 min). If you find that compression is low and you can do when doing a compression test it's better to wire the throttle open so you have a consistant opening, as for the readings, the standard reading is 186 psi, and the minimum compression test: Since you already have your plugs out because you are changing them to the proper plug and gapping them to the right spec, you are already set to 1995 300zx twin turbo, 139k miles. Most Comprehensive Kit: OTC Compression Tester Kit; 4. Our compression test machines measure characteristics such as yield strength, ultimate strength, modulus of elasticity, and stress-strain. chris. 300ZX (Z32) General 300ZX (Z32) Technical 300ZX (Z32) Classifieds 300ZX (Z31) Forum Altima Forum Altima General Discussions Altima Coupe (2008-2013) 1st Generation the rear seal failure is a metal seal,the best thing to do is have them re-coned. Once the engine is warmed, the needle should A compression test is simple to learn and only requires a few basic tools. Page 1 of 2 1 2 Next > 8300zx9 Active 300zx tt smoking at idle, boost issue, and idle problem. 7k Member : 861 Author; Share; Posted May 17, 2012. Home Forums > Z Related > Non Technical > Compression test results. 1990 300ZX Compression Test. 1984 Nissan 300ZX The Nissan 300ZX Turbo seems to have it all: speed! handling! braking! overhead cams! A turbocharger! triple odometers! All the modern GT goodies are present and accounted for in one neat, $18,699 package. Auto Masters did the test and it came back all cylinders between 130 - 135psi which is all nice and even but You can do a compression test with the plenum off. V. Add to quote #3 · Jan 21, 2008. 300zx compression testing tutorial more. Any ideas on likely problems with readings like that? Cheers, Nick General Discussions - 300ZX Related ; Smoking when idle and warm Facebook; Smoking when idle and warm. 150, (not 155 IIRC) is the absolute base limit under FSM specs. This subreddit is for enthusiasts of the Nissan 300ZX Z31 and Z32 generations. Kaza Steve . I am just going through the car making sure all At CARiD you will find the widest choice of premium Nissan 300ZX Diagnostic & Testing Tools from world-renowned brands. Home Forums > Z Related > Non Technical > Compression Tester Recommendations. Dormant Member; 2. This engine was slightly warm as it was idling for Following are the procedure for testing the Compressive strength of Concrete Cubes Apparatus for Concrete Cube Test. The UTM is designed to test the tensile strength Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting. Now it's a brand new compression tester, however this motor would idle fine, and rev fine, it was just down on boost only managing to make 0. numbers should be Either way it seems I have to get a compression test done. : Jump to content. Next, depress the accelerator pedal fully to keep the Spoke to like 5 different 300zx technicians and everyone said the same thing check the compression. Acceptable Usage The compression testing machine is the main tool for evaluating concrete strength. If the combustion is good then your sucking it in before the combustion chamber. One of our customers supplied a second hand engine from a well know engine specialist which apparantly had been compression tested. For the compression and Brasilian test . Would be great to get the ole girl purring again, so let's start with some b A warm engine is an important criterion when doing a compression test, all of those figures will rise when warm even the lowest number six cylinder which is tragically low. Standard is usually about 180. Quote; Post by TwinTurboTyler » Thu Apr 28, 2011 If you do a compression test on a RB25, what are the normal or "should be" numbers to look for. Yeah. 155 4. TwinTurboTyler Posts: 10 Joined: Mon Apr 25, 2011 5:42 pm Car: 1990 300zx N/A. CAR ID. Search NICOclub. 1. Compression tests on specimens of building materials: cubes, concrete cylinders, bodies of masonry, stones and elements made of unreinforced concrete or light concrete, bricks, calcareous sandstones and elements, ceramic clinkers, cellular concrete blocks, hollow blocks. With 128 psi being the minimum. From a mechanical perspective, you will need to know how to properly remove the spark plugs on the vehicle or equipment you are testing and properly disable the ignition system and fuel system, the latter if the vehicle is fuel injected. I know I could take Wet test: What this means is adding a tiny bit of oil to the cylinder (in through the spark plug opening, less then a water bottle cap), and then retesting compression. Look down on the engine to figure out which cylinder is closest to the front of the engine. Lovely job Jason!! :bow: Did a compression test on If it's not, it may be pushed down by the compressed air of the leakdown test. You can't do a compression test after you pull the heads 300ZX (Z32) General 300ZX (Z32) Technical 300ZX (Z32) Classifieds 300ZX (Z31) Forum Altima Forum Altima General Discussions Altima Coupe (2008-2013) 1st Generation Altima Sedan (1993-1997) 2nd Generation Altima Sedan (1998-2001) 3rd Generation Altima Sedan (2002-2006) 4th Generation Altima Sedan (2007-2012) Compression testing can provide component and product durability and reliability as well as material data for your products, helping you and ensuring that your products meet best practice standards and that your finished product is fit for purpose. Dry being, how they read on a first run just hooking up the compression tester, and wet being after squirting oil into the cylinders. If you're using your original catalytic converters, they probably barely work any more. At 10:1 compression we can only push about 3-7 psi of Sold- 91T MR2, 94 Supra TT, 00 & 02 Saleen S281-SC, 91 300ZX TT, 99 Lightning, 01 & 02 S2000, 06 Roush Stage 3 94T MR2 Current & forever FLMR2 Meet (2008) NEW Engine & IC!! Exhaust Clip TD06 @ 27. 300ZX (Z32) General 300ZX (Z32) Technical 300ZX (Z32) Classifieds 300ZX (Z31 Compression Test. Any ideas on why this may be? So I have been using some oil almost 1 quart per fill up on gas. Had a compression test here's the results: 1: 135 2: 135 3: 135 4: 135 5: 135 6: 15 Car has barely any power at all, won't even hit boost My mate has now not got internet and asked me to post this. Keep that in mind as well, could the engine could have been replaced or rebuilt. The most it can do is 5 psi (which will give you close to 300hp) and that is close to pushing it. Manufacturers; Concepts; Supercars; News; Price Guide. Engine, horsepower, torque, dimensions and mechanical details for the 1988 Nissan 300ZX. As an example, my freshly honed and re-ringed stock U20 produces Thought i`d do it cold as the bugger wont run until its hot so my thinking was see whats going on when cold. General Discussions - 300ZX Related ; Smoking z32! Z32 Newbie needing help. Jeden exemplář 300ZX byl v Kalifornii přestavěn na kabriolet. It is actually a speaker With mileage that high I'd definitely do a compression test and also make very sure your engine's cooling system is all working correctly. A compression test simply shows you the engine's ability to perform one of its most vital functions: compressing the air and fuel mixture sufficiently 1990 VG30DETT engine swap for sale. Home Forums > Z Related > Technical > Compression Tester. Reply Have you at any point done a compression or better still a leak down test. Marty Remember me Not recommended on shared computers. ; During the test, pressure is applied to a specimen using compression platens or special tools mounted on a universal testing Hey Have just completed a compression test. If clear, probably just bite the bullet and replace the valve. manual 5 speed trans. The em­peror has no clothes, and the ZX Turbo lacks a pretty face. There’s also variable valve timing to consider, The NA runs at a high 10. In the design of the 300ZX(Z32), the engineers employed a Mass Airflow Sensor with the ECU (Engine Control Unit). Bushings and electronics wear with age as well. 24 posts • Page 1 of 1. The UTM is designed to test the tensile strength and After Saturdays dyno run, I began to suspect the compression test I had done a couple of weeks ago may have been wrong an essentially stock NA zed with low compression does NOT make 126rwkW!!! I can see how a false low reading can occur if the guage is not seated properly in the sparkplug hole, but can the reverse happen, ie. Re: Rebuild time assuming you did the compression test properly - Basedd_z32tt 21:13:36 06/14/14. 280ZX Performance / Technical. If we step that up to 9:1 we can only run about 5-10 psi of boost. Hey guys! Just put together another update on project VH45 300zx! We got tired of searching for a motor so we decided to pull the engine out of the q45 we ha Test a 300ZX from cold. Belts age from the weather and other things. After the test I realized I should have done this at WOT. WHEELS AND TIRESVolk racing If blocked, figure out a way to clear them. 00 If you perform a compression test and you see numbers lower than the minimum specified, your engine is worn beyond spec and you need to rebuild it before you plan on upgrading it. The test will still be valid for "is the motor completely Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting. All compression tests were performed with the engine warm at WOT. Quote; Post by THE240guy » Mon Mar 25, 2024 7:56 am. Edit: got in while I was typing lol! I'd do a leak down test to verify. 92 satisfied Wet test: What this means is adding a tiny bit of oil to the cylinder (in through the spark plug opening, less then a water bottle cap), and then retesting compression. Compression within spec (Varies depending on engine age, but cylinder to cylinder variation should be less than 10%), 1990 nissan 300zx no compression on driver side, recently replaced all valves, and gaskets Paradoxerweise wurde dem 300ZX sogar das zum Verhängnis, was Tester an ihm lobten: Sein noch im Grenzbereich gutmütiges Fahrwerk, ausgeklügelt abgestimmt und jederzeit beherrschbar. 5:1 compression so i figure the comp. So, if your engine is running rough or is lacking power, consider doing a compression test. a high reading You can't do a compression test after you pull the heads. Seb talks about a VG3 1990 300ZX Compression Test. Just done a compression test. Should I be worried about these numbers. A proper compression test is done by spinning the engine till the reading stops going up. Top. These were the results. Mechanics use an oscilloscope and observe the stored pattern as the engine spins when performing a dynamic compression test. 20 years nissan parts 1 year service manager worked on cars for 25 years. It is controlled by testing software used to define Its hard to say the condition of the engine. The Australian 300zx Owners Association. His zed when warm is running 145 on compression test on all cylinders bar one. After having yet another clutch fitted as the one fitted previously was not done in its entirety, had a new prop shaft bearing, main seal, gearbox and diff oilthanks to SouthWestZeds all runs very well. cylinder 1 "120" cylinder 2 "110" Cylinder 3 "115" cylinder 4 "110" cylinder 5 "115" cylinder 6 "110" I read the faq page saying that the lowest a TT should have is about 121 min. If the used engine Power balance test done with a ConZult or Nissan Consult is a very BAD way of checking the health of an engine. 3 : 180 PSI Cylinder No. Just below the wrench is my pressure tester. illuminate (light) Doing a compression test, is a good way to measure the condition of, the rings, cylinders, and valves. I did a leak down on Cylinder 5 and had 30%-50% leakage. let's be friends. Discussion in 'Non Technical' started by JRhys, Nov 16, 2016. Firstly the t Go to 300zx r/300zx • by Can’t give advice on the compression test but I will put my two cents in for the timing belt. Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting. Discussion in 'Technical' started by 8300zx9, Jan 28, 2014. Just be aware that if you're doing the test cold, you'll get results that are slightly off. Premium Powerups Explore Gaming. 300ZX Owners Club - Light (Default) 300ZX Owners Club - Dark . A brand new engine will produce 170psi whereas a worn, tired engine will produce 120psi or less. Baz. Posted April 4, 2002. same results I know 240Z, 260Z, 280Z Performance / Technical - Normal Compression? - Well. That should give you a better understanding of the condition. Z32 N/A High Compression build. Can this wait for a month for my next survive if I monitor my oil and water levels. That will help you diag without pulling the motor. vash the stampede Discussion starter 174 posts · Joined 2004 Add to quote; Only show this user #1 · Jan 14, 2010. You really don’t need special skills, to do a Put the compression test adapter into the engine's first cylinder. 5:1: Horsepower: 300-hp @ 6,400 rpm: Torque: 283 lb-ft @ 3,600 rpm: Car and Driver journalists conducted a series of tests, the Nissan 300ZX Twin Turbo edged out first the Chevrolet Corvette Z51, and Go to 300zx r/300zx • by Can’t give advice on the compression test but I will put my two cents in for the timing belt. Ramey wants $1800. 160 2. Compression Testing Machines. however if you have a cylinder thats low on compression that jumps up quite Any used engine will be questionable, especially if you can't hear it running and do a warm compression test. But I was Advertisement Coins. so, i just picked up this car, and it's got an issue with smoking. I cover the process from start to finish including what comp I did a compression test but by the time I got to do the test the engine light as cold. 0, 14) / 300 10. Not only did they all balance out beautifully, but I did not expect to see Doing a compression test, is a good way to measure the condition of, the rings, cylinders, and valves. For the time taken this could rule out a fair few causes, esp a leak down. Will sticking PVC valves cause any more harm. A user asks about the compression test results of his 91 NA Z32 and gets feedback from other members. This 1991 Nissan 300ZX Twin Turbo is for sale on Cars & Bids! 5-Speed Manual, Twin-Turbo V6, Some Modifications, Texas-Owned! Auction ends June 23 2022. 00 Is this reasonable for this repair. 5 stainless cutback exhaust and test pipe(no cats)Super split 2. each cyl with a wet test will put out slightly higher compression. 9k Share; Posted March 19, 2007. JIFETOR Compression Looking at engine; left front 152 left middle 150 left back 151 right front 140 right middle 140 right back 90 wet 150 (guessing that means its the ring???) Whats the chances of a piston going from 140-150 to 90 in 1000miles as I had it done by a garage and I was told they were all fine!??!?!?!?! This tutorial will teach you everything you need to know to do a compression test on any engine. General Discussions - 300ZX Related; Home. 02-29-2012 05:02 PM. learn more. I have had my Z for around 14 months now and I've kinda Any info on high compression and boosting is welcomed . Note the circular cylinders and the timing belt on the engine’s front. Home Forums > Z Related > Technical > compression. I watched it for a little and the weight of the car is literally turning the engine on a hill. The rotarycompressiontester. then i droped about 3 droplets of engine oil and retested it but again it was at A compression test uses the engine turning to generate the compression in the cylinder for the compression stroke, in which both intake and exhaust valves ar The compression test on my '69 1600 came out as: 1. Post by Lee2000 » Wed Mar 20, 2013 9:14 pm. i was getting 180 on 3 cylinders but one was 130psi. Customer: 1990 nissan 300zx no compression on driver side, recently replaced all valves, and gaskets. Vehicle Valuation; Auction News; Market Trends; Top Auction Sales; The Data; Research. One thing I noticed was the oil level was high on the dipstick. Most of these runs were at 3/4 throt Just about to buy a compression tester for 300ZX's Firstly, was size for the Z, 14mm,18mm ?? Any advice on what make to buy ? And thirdly does anyone want to sell one? Need it by tomorrow though. Check compression for each cylinder. I wouldn't necessarily say full If she moves forward the starter is engaging Sud. b) Verify compression: a) Warm engine fully (running for several minutes past operating temperature is sufficient). I have a friend coming over this weekend with his compression tester I wanted to try and get what it should be and see how close it is. 6, 151) / 300 Difference limit between cylinders = 98 (1. Went and bought the tester and guess what! All 6 cylinders were on 110-120 psi of compression. The Feesher. 0 coins. 4. Reply ItsARappy • Additional comment actions. If you need those, just be aware after market cats don't last anywhere near as scottj wrote:I see plenty of people running 15-20k miles between oil changes, the guys who send in oil samples to Blackstone. General Discussions - Non 300ZX; Home. Reply to this topic; Start new topic; Recommended Posts. On taking the plug out of the middle right cylinder alarm bells started ringing, oil all over it. I will also install the nismo fpr which I will test and adjust with the pressure tester. Compression testing machines come in two main types: hydraulic and servo Im looking at getting a compression tester and wanted to check what ones people have bought as with the V configuration i need to make sure it will reach. My results are cyl1: 145 cyl2: 145 cyl3:130 cyl4:130 cyl5:140 cyl6:120 Double checked today. Compression tests are used to determine a material’s behavior under applied crushing loads, and are typically conducted by applying compressive pressure to a test specimen (usually of either a cuboid or cylindrical geometry) using platens or specialized The Australian 300zx Owners Association. There is a valve cover leak, and it will need the How to perform the cylinder compression tests, and the fuel line pressure test. I bought a 1996 240sx SE with a swapped RB25DET series 2 over the weekend. And that brings me to my confusion over what the FSM (2003 Maxima - Section EM-13) says to do. Specimen. A user posts the compression test results of his 300ZX engine and asks for advice on how to fix the low compression in cylinder 5. Plus, all the fabrication for the setup will cost more than purchasing a front clip, rebuilding the Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting. 300ZX (Z32) Performance / Technical. Hes put oil down to prove piston rings are worn but he wants to know how serious a 1987 Nissan 300zx Turbo - SOLD 1988 Nissan 300zx Turbo - SOLD 1991 Nissan 240sx SR20DET - SOLD. Rebuild time assuming you did the compression test properly - ttsmokin 17:59:23 06/14/14. X Research source You can identify the positive terminal by looking for the positive sign (+) on the battery or The Nissan 300ZX is a sports car that was kW) and 200 hp (149 kW) respectively. whats compression on a rb25det on a cold motor supposed to be? the place i want to order my motor from gave me test results of 230psi, 225psi, 230psi, 225psi, 230psi, 230psi and leak down test results of 10, 10, 15, 15, 15, 10 is this motor in good condition. For the Leak Down test all cylinders were in the good half of the green, including the one which was picked up at 100psi – And yes I had each cylinder at TDC on the right stroke while testing 🙂 The Nissan 300ZX is a sports car that was produced across two different generations. Cylinder 1 - 170 PSI Cylinder 2 - 162 PSI Cylinder 3 - 168 PSI Cylinder 4 - 164 PSI Cylinder 5 - 168 PSI Cylinder 6 - 165 PSI My engine is completely stock and i will keep it this way. Using the leakdown tester you can inject air into the cylinder while it is at top I asked the guy to get it compression tested which he happily did. This sensor measures the intake air so as to determine proper fuel Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting. Re: Understanding Compression I would pull one or two of the plugs out and squirt some oil inside the cylinder. 5:1 Compression Ratio and the TT motor only has 8. The proportion and material for making these test specimens are from the same concrete used in the field. Here are some The length of hose does not effect the readings. Acceptable Usage Policy; Club Constitution; Privacy Policy; Meet the Team This is fairly normal for a 30+ year old car like the 300ZX, but you can likely get away with waiting a bit longer than that if you wish. If this were a normal car I would probably have it torn down and begin a re build but the Z is no normal car and Mr. The results obtained from compression testing can be used in a variety of ways. Website. 8 bar at max boost by about I did a compression test on my Z and learned a lot about whats been making my engine run bad! (Hint: it wasn't a V6)Check out our website: TheZGarage. Vegas 350Z Club. Compression Testing in Universal Testing Machine (UTM) The Universal Testing Machine (UTM), also known as a Universal Tester, Materials Testing Machine, or Tensile Testing Machine, is a versatile piece of equipment that can perform multiple types of mechanical tests, including compression tests. Figure 6 – Compressive strengths of various unidirection carbon/epoxy composites as a function of slenderness ratio using different test types [7] A compression test measures a cylinder’s ability to hold pressure as the piston moves up and down. never really got leak down test results before and not sure how low the % should be the manual says to do the compression test with the engine well warm, and with the throttle completely opened. Anyways, some of you guys don't seem to understand what a compression test tells you. I mean blown head gasket not really much I can do. A leak down test cold would be much better, a leak down test period would be recommended as well as the warm compression test. 0 V6 2005 with 92000miles. Answered by chris in 48 mins 15 years ago. Acceptable Usage Policy; Club Constitution; Privacy Policy; Meet the Team For the compression test (This engine is a V6) One side had all three cylinders at 140psi and the other side was two cylinders at 150 and one at 100. thanks guys will get my teeth sunk into it tomorrow :yes: Well I am doing some work on the car this weekend to be able to up the boost on the stock block before putting in the built block, which hopefully be in the next month or two, so I did a compression test on the engine to be safe before upping the boost and all cylinders were 200, the manual says average is 185 with minimum being 142 so the engine is like new, this is Compression: 8. In this video i talk about the z and do a compression test on it im about to do a compression test, but not 100% sure what i should do. I just finishjed doing a compression test on my engine and these were the number. I just bought this car. market, causing would-be customers to doubt the actual value of the 300ZX as a new purchase. Looks good IF the engine is not brand newor if it has a more radical cam than stock. all the belts are new, theres a So yesterday I did a compression test. G. The job is pretty straightforward, you connect the gauge, after removing all the injector pipes, in place of the injector or the glow plug depending on the fitting you have available and then crank the engine while you watch the gauge, repeated for each cylinder, any more than 10% No luck at Amazon or local auto parts. So I guess we have found a problem! 300ZX (Z31) Forum. 300ZX (Z32) General 300ZX (Z32) Technical 300ZX (Z32) Classifieds 300ZX (Z31) Forum Altima Forum Altima General Discussions Compression testing is one of the most fundamental types of mechanical testing, alongside tensile and flexion tests. Due to this nature, the NA will not adapt well to a forced induction system. Probably a stupid question, can you compression test an engine out of the car? I can turn the vg over by hand and without sounding stupid I just don't think thsts right, 1992 Nissan 300ZX SLICK TOP Additional Info: . There's not enough relative volume in the hose, as compared to the cylinder, to make a difference in the reading that will make a difference. Motorsport news; A few runs on the dyno breaking in my new motor. I rode in the veh and it drove fine with plenty of power and no rod knock or anything. For carbureted engines, you can choose to disable the fuel supply I'm confused about the minimum "on-spec" compression pressure for a UK spec TT. 09-26-2011 04:54 PM. #1 - 120-125 psi#2 - 115-120 psi#3 - 115 psi#4 - 115 psi Now I've used the search button and checked out some other compression test results from similar vehicles, and have seen that about 155 is normal, and 128 is as low as is acceptable. 5 psi. 155 3. 8:1 compression ratio, whereas 1988 to 1989 models featured a low capable of 153 mph (246 km/h) speeds, as tested by Motor Trend with the electronic speed limiter disabled Compression tester: This is used to determine the condition of the combustion chamber and its ability to compress the air and fuel that enters into it. Smoke comes out exhaust (exhaust pipe is very black) when hard acceleration and also plugs are fouled. Preparation of Concrete Cube Specimen. Sold this one too. but first do a compression test,there should be posts on that as well. 6. dallasee Posts: 4 Joined: Thu Aug 15, 2013 4:40 pm Car: 1990 300zx. Post Reply Print view; Search Advanced search. still going to do a compression test and change all the spark plugs. Compression tests are used to determine a material’s behavior under applied crushing loads, and are ok so i have my 91 nissan 300zx turbo with 100,000 miles on it and im a nissan tech so i should be able to figure this out but im sumped anyways, so im wondering if anyone has any ideas? ok so my car has had this problem lastely Compression Numbers - Basedd_z32tt 17:44:43 06/14/14. On a Z31 or Z32 300ZX, you should always purchase NGK spark plugs, but the actual plug type depends on a few factors: Reason I did a compression test was because when I removed the wire running to the coil pack on cylinder #2 it made absolutely no difference at all. Standard Member; 9. Hello Guys, Yesterday I performed a compression test in my Frontier 4. The Z31 Has anyone on the board ever changed a head gasket on a 85 300zx? If so what pitfalls should I be looking for. If compression in all cylinders is low, the piston rings and/or cylinders are worn and the engine needs to be rebuilt or replaced. Then attach the compression gauge. Ps, I do about 250 km a week. And VW/Audi had a recomended oil change interval of 15k miles on some of their vehicles. I got this results: A “Leak Down” test pinpoints where you are losing compression and exactly how much before you open up your engine. Post Reply Print view; im going to solder and heatshrink the cut wires. Hey all, Finally decided to bite the bullet and give the Z a compression test. Now, let’s explore the equipment and test methods used in compressive testing. i wanted to do compression test. 160 How does that compare with normal compression readings? Mark Sifrit Venice, FL and 1990 Nissan 300zx. com 1987 300ZX Wild Overheating Issue small compression leak that goes into the coolant passage you won't find coolant in the oil or any other stmptome and a compression test won't indicate an issue either, but a leakdown test will show more loss in that cylinder and the coolant overflow will smell of exhaust fumes, the At CARiD you will find the widest choice of premium Nissan 300ZX Diagnostic & Testing Tools from world-renowned brands. I have 2 x TD-05 18G's on order and i will fit them up and see what hp numbers i If it's flooding, that could cause low compression due to the oil film being washed off of the rings on that cylinder. price for repairs is 593. Results 1 129 2 130 3 130 4 130 The engine was cold, filter intake removed, and I was pressing fully down on the gas pedal. This is because a compression test can be A compression testing machine is a universal testing machine (UTM) specially configured to determine a material’s strength and deformation behavior under compressive (pressing) load. it doesnt whip you into your seat, and got beat by a turbo'd miata with only 233RWHP . 2 | We know rotary enthusiasts come in all shapes and size, as do their engines. Thanks Just before I go and buy a compression tester, I've noticed the fitting to which you screw in to the head would be set way down in the Log in or Sign up. One thing was for sure, the Z began losing its distinction as an affordable sports car that it originally attained with the introduction of the 240Z in 1970. 2 : 130 PSI Cylinder No. but before i did so. We took out his old engine and replaced it with the new one. The test involves a special gauge and adding compressed air to measure the percentage of leak in the cylinder. Obviously, if you experience signs of spark plug failure, it is likely time to replace your plugs regardless. Jump to Latest 11K views 12 replies 9 participants last post by 90z321600 Jan 24, 2010. M15 or above I’ve got a compression test booked in for next week, but I was wandering if anyone else could suggest anything? There’s various reasons for this like poor compression, bad vacuum, exhaust design and even blockages in the turbo drains. 15 years is a long time with a lot of temperature and season changes. A cold compression test is not going to be very reliable. Quote; Link to comment Share on other sites. 5 posts • Page 1 of 1. I own a 1990 300zx 2+2 took it to a repair shop today for a compression test, the car was not riding with power, told i need a new injector plus manifold gasket. Mechanic's Assistant chat. so we all agree. Hey guys looking for some reassurance. thanks. If cylinder compression in one or more cylinders is low, pour a small amount of engine oil into the cylinders through the spark plug hole and re-test compression. 7K views 7 years ago. jdubs Posts: 82 Joined: Tue Nov 20, 2007 3:30 pm Car: 1994 KH6 300zx TT / 1993 KH6 300zx NA. Also gives an idea of what the new exhaust set up and motor sound like. [1] It was sold in Japan from 1983 to 2000 and in the United States from 1984 to 1996, the 300ZX name followed the numerical convention initiated with the original Z car, the Nissan I searched and read a ton of posts that white smoke = blown head gasket. im 100% sure she has stripped the teeth at the crank or spun the woodruff, thats why she turns over freely as there is no compression, as she prolly bent a few valves. Quote; Post by 1988 300ZX Turbo » Sat May When I found this Nissan 300zx getting parted out, I saw enough potential in it to bring this junked car back from the dead! Finding most of the parts while Have you done a google for compression test tutorial? You're bound to find something. A 14 psi difference between cylinders is the borderline on both engine variations. Datsun 240Z Exhaust Guide; Best Compression Testers; 240Z Carpet Kit Guide; 280Z Carpet Kit Guide; Compression testing. If you want to get it down to Crumlin we'll have a look at it for you. Sounds like you did it all correctly! - ttsmokin 18:06:27 06/15/14. Forgot your password? Sign Up When I get back I will do the compression test then replace the plugs with new ngk plugs. More sharing options Baz. com unit will give accurate, reliable and repeatable compression readings in all engines from General Discussions - 300ZX Related; Home. 4 : 180 PSI so the results were not expected. Just remember the mileage has more to mess with than just the engine. If there was inadequate coolant flow that caused your head gaskets to blow, then you 1990 Nissan 300zx. mr zed x chassis scrubbin. Hook up your compression tester to it. Posted March 19, 2007. adding a little bit of oil can tell us if the piston rings are worn or not. It is also used for testing the compressive strength of various materials. 7 posts • Page 1 of 1. I was shocked. Links please :) Marty Well basic things to check, suck, squeeze, bang, blow. when i drive it around, and then Jump to content. Ash spec zemulator engine management system $500Mike smith manifolds $650Stillen 2. I may have done the leakdown test incorrectly, I rotated the engine until I felt pressure building in the cylinder and then did the test, but I only have a pancake compressor and had a limited window of compressed air. is this normal ? Fish. After having coldstart issues for quite awhile I have replaced the spark plugs with ngk platinums and checked all sensors with all good readings. So today myself and The Deacon ran a compression test and found some issues. And we have a auto cross event coming up and wanted to use the 300zx. CO2, emission conceptcarz from concept to production. But again comes down to price. This involves screwing a pressure guage into a spark plug hole and cranking the engine for 5-6 seconds. 300ZX Related ; Smoking when idle and warm Theme . JRhys Member. If the compression does not change it could be your valves not sealing which would require the heads to be rebuilt. By _Jav_ September 7, 2007 the rear seal failure is a metal seal,the best thing to do is have them re-coned. Slavný herec Paul Newman, který nissany miloval, s ním v osmdesátých letech závodil. Lee2000 Roadster Fanatic Posts: 361 Joined: Sat Dec 06, 2008 6:25 am. For the remaining cylinders, you must rely on either the whoosing air or a skinny object stuck down the plug hole riding up and down on the piston to determine when each is at tdc. 800-505-3274; Shopping Cart 0. 2 - remove, fuel pump fuse (and or disconnect CAS connector) RHD cars - on drivers Also confirm your battery was fully charged and you're using a quality (read accurate) compression tester. Results: (psi) 1= 65 2=65 3=78 4=70 5=40 6=35 This test was ran today while the engine was cold with the throttle wide open. Page 1 of 2 1 2 Next > Chilledpain Z Reaper. That being said the test also says to fully warm up the engine before doing the test but was not able to do Well before I did any upgrade work to my 92 TT I took it up to RameyZ and had a little tune up and compression test done. com 1987 300ZX Wild Overheating Issue small compression leak that goes into the coolant passage you won't find coolant in the oil or any other stmptome and a compression test won't indicate an issue either, but a leakdown test will show more loss in that cylinder and the coolant overflow will smell of exhaust fumes, the 1988 Nissan 300ZX technical specifications and data. Procedure says to remove all ignition coils and remove all spark plugs. One of them reads 120. Theme . 5:1 compression ratio. Except, that is, for the most cru­cial ingredient of all: sex appeal. And is it worth getting the head ported and polished if I will only have headers, intake, msd ignition and exhaust? Thank you in advance. The min value is 128 psi, the optimal i think is aroun 150 psi If you test it in cold engine probably the rings wont be well tight and 100 psi maybe is normal test in wam condition and you will know But, because I don't do many compression tests on gasoline engines, I am probably doing the math wrong. Acceptable Usage Policy; Club Constitution; Privacy Policy; Meet the Team I noticed my compression was low when I parked my car on my driveway and left it in first gear without the parking brake and came out an hour later to find it further down the driveway than I left it. Posted May 17, 2012. You want real diagnosis, go straight to the leak down. One face of the gauge measures the pressure of the compressed air that you are forcing into the cylinder, and the 1984 Nissan 300ZX The Nissan 300ZX Turbo seems to have it all: speed! handling! braking! overhead cams! A turbocharger! triple odometers! All the modern GT goodies are present and accounted for in one neat, $18,699 package. I always do a compression check as part of my inspection process of the vehicle. Nejlépe se auto prodávalo v USA, kde se při uvedení používalo i jméno Datsun. Dry compression tests are really almost useless. Just for context, this particular cat was garbage kept and Cali owned it's whole If your getting both, compression test. As with all other versions of the Z, the 300ZX was sold within the Japanese domestic market under the name Fairlady Z. 300ZX (Z32) General 300ZX (Z32) Technical 300ZX (Z32) Classifieds 300ZX (Z31) Forum Altima Forum Altima General Discussions 1. Remove all coil packs, spark plugs, and balance tube. Hello all, I'm still troubleshooting the low vacuum gauge readings on my engine and decided to do a compression test on all cylinders to see the results. 73. Discussion in 'Technical' started by mr zed x, Jan 8, 2014. Its actually a better test to do than a compression test. Also, it is important to perform a compression test every time a tune-up is done, as part of preventative maintenance. the TT requires premium because it has forced induction and the NA requires it because of the already high compression compression ratio. I did a compression test today and used one of the combustible gas testers on the radiator and everything looks fine. Typically, 4-valve engines will have higher normal compression than 2-valve engines. A typical machine for compression tests consists of a load cell, a crosshead(s), compression test tools, electronics, and a drive system. There's This compression tester kit also comes with an 8-inch long-reaach adapter that can be used with any compression tester, not just the INNOVA 3615. [1] It was sold in Japan from 1983 to 2000 and in the United States from 1984 to 1996, the 300ZX name followed the numerical convention initiated with the original Z car, the Nissan and i think we all agree that both NA and TT Z32 300ZX's require 91 octane unleaded gasoline, which is often called premium, or super duper gasoline, or whatever. If your test yields higher numbers than 'perfect', there is likely a problem with your compression tester and you should acquire a new unit and perform the test again. I would replace it. What is the factory spec for the NA 300zx? I know it has the 10. If you have compression, fuel and a spark its merley not happening at the correct time. here are the results. This tutorial will teach you everything you need to know to do a compression test on any engine. Could this cause the white smoke? It doesn't smell Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting. the starter sounds strong, starts quick. I just ran compression testing on my engine, it is a Maxima N47 head and F54 block. 300ZX Owners So much so that in 1996, the final year of the 300ZX, prices rose to around $50,000 in the U. You should have been given "dry" and "wet" test numbers from your compression test. Sign In. When the engine’s idling, the boost gauge needle should be on the far left. Removing the Compression Pressure kPa (kg/cm2, psi) / RPM Standard = 1,236 (12. The Z31 The Australian 300zx Owners Association. Regular engine misfires, reduced acceleration, and poor fuel economy are indicators that you need to conduct an engine To say I'm gutted is an understatement. 2018 VW Tiguan. If the compression goes up your rings are worn and in need of either re-honing or a complete rebuild. Save Share Reply Quote Like. Quote; Post General Discussions - 300ZX Related ; Compression test results Facebook; Compression test results. Bottom Left - 160 Middle left - 150 Top Left - 140 Bottom right - 70 Middle right - 70 Top right - 50 Dosent look good to me!! What results should I be seeing. Put the compression test adapter into the engine's first cylinder. At 64k I was having all of the god awful rattles that seem standard and now at 80k a cylinder 2 misfire. 1 : 180 PSI Cylinder No. The first cylinder is on the rightmost ones in Compression Test. Valheim Genshin Impact Minecraft Pokimane Halo Infinite Call of Duty: Warzone Path of Exile Hollow Knight: Silksong Escape from Tarkov Watch Dogs: Just a quick word of warning to those of you who may consider buying a second hand engine. by increasing the compression ration there is a huge chance you will get pre ignition ( ( det ) and possible total destruction of I hope they heated the engine up to check before they did that compression test, otherwise it means basically nothing. When you do a compression test, the BIG thing you are looking for is variation between Immediately to the right of that is a compression tester. Compression Testing Machine Type MEGA 11 . Once you carry out a bunch of diagnostics and are still stumped to what the solution is, you may need to start taking things apart at that point. This is used to determine the condition of the combustion chamber components and their ability to compress and seal the air and fuel that enters into it. 0 Change. In the middle could mean compression problems. I had the accelerator floored and counted 3 Though not even two years old, the 300ZX Turbo is already the established top gun in the sports-coupe class. For anyone who has ever owned, driven, built, raced or admired the 300ZX. The first cylinder is on the rightmost ones in Just a quick word of warning to those of you who may consider buying a second hand engine. I thought since 3sgte's were non-interference Never done a compression test before, but I think I understand the general concept. More sharing options Kaza Steve. 03 350Z 554RWHP Horsepower Logic - South Florida Z Car Club - 90 300ZX TT. In other words make sure you do actually have fuel getting to the cylinders, also, do a compression test to ensure you're getting correct compression, check your ignition, make sure you're actually getting a spark. PAge EF & EC-70 of my UK workshop manual say 142 psi whereas postings elsewhere say 127 psi. 6 cubes of 15 cm size Mix. Luckily there are CARB legal replacement cats you can get if you need to. Re: Good compression numbers for a 1990 vg30dett??? (Dragon13) Quote; Post by Stock No B341 Compression Test for 300ZX TT Half Cut How to perform the cylinder compression tests, and the fuel line pressure test. N. LoserCard Posts: 506 Joined: Sun Oct 14, 2007 11:21 pm Car: Forest Green 1993 240SX SE Fastback Contact: Contact LoserCard. Re: Compression Test . Fails resistance test, replace injector (failed injector). So I ran a compression test and go around 80 psi, but it runs just fine! Curious if After completing the compression test on the last cylinder, it’s time to compare the readings with the compression ratio recommended by the manufacturer if you can find it online. This is particularly useful on a 300ZX with the layout of its engine bay. Guest Coogs. Do a compression test and leak down test. Guests ; Share; In Depth Guide To Turboing Your NA Compression vg30de Motor (300zx): by Scott Taylor May 12, 2018In Depth Guide To Turboing Your NA Compression vg30de Motor (300zx): In this guide I'll be talking about these key points: -Engine health, and tests to do to make sure your engine is up to the task -Can the Na motor really hold boost? -Basic parts Then hook up the compression tester and hold the gas pedal to the floor, to have throttle body wide open, crank the the motor until the needle on the compression tester stops moving! Top. Best to use compressed air to The Australian 300zx Owners Association. 5 stainless divorced and a name brand apron $300Carbon fiber Radiator shroud coverCarbon fiber throttleMobil 1 aluminum oil filler cap. A higher Have a GTR with RB26, previous owner had boost controller installed and apparently hit 28 pounds of boost on the stock motor and now cylinder 6 has barely any compression so I bought the car for dirt cheap. Subscribed. The compression test is done with and without wide open throttle and the How To Do a Compression Test On a 300zx. Compression testing machine. Discussion in 'Non Technical' started by Chilledpain, Feb 4, 2010. Consistency across the board is very important, but when your at the absolute base line of your compression reading, especially when they are that even, its blatantly obvious that your rings are very close to the end of their A compression test is one of the most fundamental mechanical tests that can be performed on a material, product, or component. results are 145 V 80 140 V 30 140 V 135 So thats it The VG30DETT standard compression figures are 171 psi. however if you have a cylinder So we're having injector issues as well as compression issues. It also could be a misfire if RPMs steady drop, but with the coils and plugs you shouldn't have any Prvních modelů 300ZX se vyrobilo 329 900 exemplářů a většina zamířila na export. hey guys. Any recommendations on a good compression testing tool? and where to buy? I was 100% sure the Repco ones would fit without some sort of WTF!!!!! did a compression test on number 6 and it came back almost zero, added some oil, still zero must be a valve or the headgasket , im not getting any smoke at all, just waiting for my mechanic to call back Having a bit of a nightmare at the mo :( Looks like its coming apart again. Share More sharing options Followers 0. And compression test will cover the blow part. Can anyone confirm what the cylinder order is? Is it 1234 front to back with a 1342 firing order, or is it mixed up? I would also like to know how much compression I'm looking for when I test? I'm We go through the correct way to use and adjust Dual Speed Compression (DSC) Compression Adjusters on Fox or Walker Evans shocks. I cover the process from start to finish including what comp Compression tests are performed to characterize the behavior of a material under compressive loading. Cylinder No. nicolastella Discussion starter 2 posts · Joined 2011 Add to quote; Only show this user #1 · May 23, 2011. Firstly the t Well I am doing some work on the car this weekend to be able to up the boost on the stock block before putting in the built block, which hopefully be in the next month or two, so I did a compression test on the engine to be safe before upping the boost and all cylinders were 200, the manual says average is 185 with minimum being 142 so the engine is like new, this is Only decent answer to the OP's question. I recently did one to mine and showed 120's arcoss the board and just wanted to make sure this wasn't too low, or an issue that would require a re-build Compression testing is one of the most fundamental types of mechanical testing, alongside tensile and flexion tests. As it turns out i've got bad compression in cylinder 6 (95psi) all other cylinders are decent (120-130psi). tdsm dxhlj xwsuj crvko nargl ptreca xhjf jadzttf ptaq duhqm