ej25 compression test|EJ251 11.5:1 High Compression Build : manufacturer I just did a compression test on my stock EJ25 before I go turbo. I'd like to see how healthy the engine is before I go through a series of mods. Here are the results: 1) 215 . Verê, PR - Previsão para 15 dias São João - PR - PR | Climat.
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how to properly do a compression test for a ej25. I bought a compression tester at Discount Auto Parts and read the instructions as well as the instructions on this thread: I .I just did a compression test on my stock EJ25 before I go turbo. I'd like to see . Just did a compression test on a 2001 Outback donor engine before I pull it out. I’m planning to do head gaskets, timing components, water pump, reseal it all, etc. while I . I just did a compression test on my stock EJ25 before I go turbo. I'd like to see how healthy the engine is before I go through a series of mods. Here are the results: 1) 215 .
With a compression test, you're more looking for a difference between cylinders than what the actual pressure is. Reason: the number can vary greatly depending on how fast . Be sure to run the test warm, all plugs out, throttle plate open. I don't know the exact spec for your car, but I believe factory is anywhere from 150 to 180 pounds. If you are .
I'd say the spread amount cylinders is tight and based on that I'd think they are good. The STi has a 8.2:1 comp ratio. My EJ255 WRX has a 8.55:1 compression ratio and it . I did a compression test on 1998 2.5 L DOHC EJ25 engine with 109,000 miles on it. I was only able to do the test cold, as I can't start the car. Here are the Compression Test . Compression testing isn't typically helpful for EJ/EZ headgaskets. Compression test results are a function of engine RPM, which can create some variance. I'm surprised the . This is my dream NA High Compression Build. I think this would make near the 250-300whp range with around 250wtq with a rev limiter of 8k. I'm sure the motor and .
EJ251 motor has SOHC heads, new pistons and higher compression ratio (10.1:1). The EJ252 engine was built for California State especially; it has another intake manifold and throttle valve for reducing emissions. The EJ253 is .
how to properly do a compression test for a ej25
With that said, a compression test's numbers dont necessarily spell disaster, it is the spread of the numbers. Yours dont look to bad, both pistons on each side are pretty close. You will know it if a ringland lets go you will have 3 with . 98 Outback 2.5 DOHC automatic, 264K miles. Did a compression test yesterday to diagnose the cyl. 2 misfire I've had since February. As I feared, compression was: cyl 1 130 cyl 2 25 cyl 3 130 cyl 4 155. Somehow I don't think a can of Seafoam is going to solve this one. How many hours should I plan to remove/replace the heads? Spent 45 min performing compression test with compressiont tester today. Make sure to perform test when car is warm. 2002 WRX with 90k miles Mods: VF34 @ 19psi protuned 282whp/272wtq JDM STI TMIC Maddad .A leakage test can also be used in conjunction with a compression test to diagnose other kinds of problems. A cylinder that has poor compression, but minimal leakage, usually has a valve train problem such as a worn cam lobe, broken valve spring, collapsed lifter, bent push rod, etc.
Subaru EJ25 engine specs, its main problems and reliability. What engine oil to use on EJ25 and its capacity, how to increase engine performance (Tuning guide) . The compression ratio was reduced to 8.4 on EJ255 and TD04L turbocharger was applied. Maximum boost pressure is 11.5 psi (0.8 bar). Due to all this, Subaru EJ255 shows 210 HP at .
A leakage test can also be used in conjunction with a compression test to diagnose other kinds of problems. A cylinder that has poor compression, but minimal leakage, usually has a valvetrain problem such as a worn cam lobe, broken valve spring, collapsed lifter, bent push rod, etc.
The air temp in my garage was balmy 82F. The retest results were essentially identical to psi values obtained yesterday with the warm engine. Thus, the engine temp had no significant impact on the compression test results. I proceeded with the wet test, adding 1 tbsp of engine oil to each cylinder and repeating the compression test:
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Subaru EJ25 2.5L Engine Specs, Problems & Reliability
Quick info needed.EJ25 Compression
EJ25 compression ratio: Chi_San: Normally Aspirated with bolt-on Forced Induction Powertrain: 2: 08-14-2005 05:37 AM: how to properly do a compression test for a ej25: latinskllz: Service & Maintenance: 9: 11-29-2004 12:57 PM: DOHC EJ25 Compression: Honkey3k: Legacy Forum: 1: 07-21-2004 10:39 PM: EJ25 Compression Test Results at . I'm having a hard time finding this EXACT setup but these tools looking promising:5/8 16mm Magnetic Spark Plug Socket - https://amzn.to/3o6R1zfStubby 3/8 Ext.
I just wanted to share these dry compression test results with the community for comparison sake. Compression test was done since I was switching out the spark plugs on the car. A wet compression or leak-down test was not done. Cylinder 1 - 150 psi Cylinder 2 - 150 psi Cylinder 3 - 153 psi Cylinder 4 - 144 psi Car is a 2001 Forester S 2.5L N/A.
its pretty easy to do a compression test put the cylinder on the drivers side towards the back took close to and hour to get the plug out, run the test, and the plug back in! Save Share Like. Z. Z06Bait. 278 posts .
To fill in a few more details. I did a compression test last week. I returned about 140psi on all four cylinders, well within spec. . Had the same problem on my original EJ25 even when testing properly for compression the numbers appeared within spec. Ultimately, what I had to do was replace the engine with a new one from CCR. I was burning . Compression testing isn't typically helpful for EJ/EZ headgaskets. Compression test results are a function of engine RPM, which can create some variance. I'm surprised the allowable difference is only 7 psi. I thought it was more.but then again I consider compression tests pointless for EJ/EZ engines.The Subaru EJ25 series of engines has proven the test of time, and has been in use since 1994 on Japanese models, all the way up to the final WRX STI models. . It runs at a higher 9.5-1 compression ratio and produces 261 horsepower. Towards the end of 2013, when Subaru began production of the VA chassis WRX, .
EJ25 - 2.5L Turbocharged (2004-2013) Compression Test Results: what is normal? Jump to Latest 18K views . With a compression test, you're more looking for a difference between cylinders than what the actual pressure is. Reason: the number can vary greatly depending on how fast you rotate the engine, air density for the day, throttle angle . The 2.5L EJ25 engines used by Subaru for the 1996 to 2012 models of the Outback were a bit of a mixed bag. Let's look at its common problems. . To diagnose leaking piston rings, a mechanic will first do a . You can always test fit them and if they won't turn all the way, you can usually trim the castings in the head to make them clear without affecting the strength of the head. Of course if you are running high compression you're going to want to get stronger head bolts and machine the surface of your deck and heads to get the best seal possible.
Compression Dry(psi): 115 130 145 140 Compression Wet(psi): 125 135 150 145 Max difference is 30psi & 7psi is acceptable. Leak Down Test(%): 65 23 8 10 Was getting sporadic CEL P0301 Misfire Cylinder 1 paired with rough idle. Occurring mostly upon restart after car was already warm. Losing oil as well.
Thanks grizzdoog, I am not really super worried about the compression test. The car runs great. I did do a leakdown test and pretty much all the air was coming through the oil filler cap, so I suspect worn rings. Then again, a cold test on a turbo car is not super accurate I guess. Did a compression test on Ej25 Did a compression test on Ej25. By 1-3-2-4, April 6, 2013 in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX. Share More sharing options. Followers 0. Reply to this topic; Start new topic; Recommended Posts. 1-3-2-4. Posted April 6, 2013. 1-3-2-4. Members;
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The Subaru EJ engine is a series of four-stroke automotive engines manufactured by Subaru.They were introduced in 1989, intended to succeed the previous Subaru EA engine.The EJ series was the mainstay of Subaru's engine line, with all engines of this series being 16-valve horizontal flat-fours, with configurations available for single, or double-overhead camshaft .
Compression Test Results @ 55,650k: PaulRex: Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 7: 10-12-2003 02:59 PM: EJ25 Compression Test Results at 50,000 miles: latinskllz: Normally Aspirated Powertrain: 4: 11-11-2002 02:46 PM: Compression test results numbers: Imprezer: Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L . Compression, valve clearance, and timing belt are perfect Fuel: injectors all clicking, strong fuel smell and notable loss of power if disconnected. Background: Car ran perfectly fine, was severely overheated so I replaced the shortblock. The only two options I can see are fuel supply or valve/cam issue of some sort. EJ25 - 2.5L Turbocharged (2004-2013) Lost on what to do (compression and leak down test) . a wet compression test would solve this mystery in a California minute. The upper cylinder oil will clean carbon off the valves as well as provide temporary sealing for the rings. I've owned upright engines with an errant cylinder. . .EJ25. 2006-2014 Subaru WRX; 2004-Present Subaru STI; . All of the above factors are typical causes of Subaru Engine failures. A compression and leak down test along with studying your engine’s history will help to get to the bottom of it. Once you have a reason, you can better choose the components and path to avoid it from happening again. .
the spark plugs are easy enough to access, remove the battery and the window washer tank on the left hand side and the air cleaner case from the right hand side and then remove the connectors from the coils and then remove the coils. it is easy enough to do a compression test from there. removing these parts is easy and allows proper access! Also will be running all synthetic gear oil and Rotella T6. I have a less intense NA compression build plan which consists of an intake, highflow cat, headers, catback, deltacams, and 11.5:1 compression pistons on 91 Octane but I wanna see what you guys think of the idea I have now and how possible it is to reach those numbers.
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ej25 compression test|EJ251 11.5:1 High Compression Build