compression test results??

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compression test results??

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compression test results?? - 3/15/2008 10:02:38 AM

newguy2007

Posts: 71
Joined: 9/19/2007
Status: offline

alright i did my compression test. But this was the strange thing: i know when the rings are worn you have like 3 good cylinders and 1 bad one and then do the wet test and see if it comes up. I did mine and ALL the cylinders were like 150-151. They all matched. So i did the wet test anyway on one and it ended up reading 180 so it raised like 20psi.

Does it sound like my rings??

Post #: 1

RE: compression test results?? - 3/15/2008 10:09:39 AM

Sebba

Posts: 13345
Joined: 2/20/2006
From: San Antonio, TX
Status: online

Rings, yup.

What engine is this?

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RE: compression test results?? - 3/15/2008 10:19:09 AM

newguy2007

Posts: 71
Joined: 9/19/2007
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i have the turbo eclipse gst. 1997 actually what is the engine in it. I know its a 2.0.

Anyway, so the rings are definatly gone even though all cylinders were the same? Also do you think this would explain my lack of boost, smoke from my car, and smoke from my vents?

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Post #: 3

RE: compression test results?? - 3/15/2008 10:28:36 AM

TheEngineer

Posts: 10171
Joined: 1/25/2006
Status: online

standard compression on those cars is supposed to be 178psi. However the service limit on them is 133psi. So you are not at the point yet where you need to think about rebuilding the motor or anything. And since there wasnt any that were really low i dont see anything in there that says you need new rings. Also nothing points to a head gasket but usually the smoke through the vents is a head gasket issue which is what is confusing me. You could have possibly blown a head gasket on the outer part of it but i would think youd notice the leak in the engine bay.

Do you notice any loss of coolant. The problem could possibly be the turbo is shot. Take the intake off and check the small shaft in the center of the wheel for any movement in/out and left/right

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RE: compression test results?? - 3/15/2008 10:28:53 AM

dsm1990gsx

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Deff sounds like bad rings, it explains a lot of your symptoms.

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RE: compression test results?? - 3/15/2008 11:04:25 AM

newguy2007

Posts: 71
Joined: 9/19/2007
Status: offline

well now im really confused. Should i change the rings or the head gasket or run it how it is ( i dont want to do that because the smoke and stalling is pissing me off) or get a leak down test??????

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Post #: 6

RE: compression test results?? - 3/15/2008 11:34:49 AM

TheEngineer

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Joined: 1/25/2006
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Like i said you are not even close to service limit on that car. Its what happens when a car gets old, you wont have perfect compression. But you dont need to change them IMHO

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quote:

ORIGINAL: pilsenblue
Even tho My car looks great It will never be fast. Kinda like a hot girl that dosent give it up

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Post #: 7

RE: compression test results?? - 3/15/2008 11:42:06 AM

EMonz57

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Joined: 5/13/2005
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quote:

ORIGINAL: TheEngineer

Like i said you are not even close to service limit on that car. Its what happens when a car gets old, you wont have perfect compression. But you dont need to change them IMHO

Yes an no, John you have to factor in the #s may also be a little higher because of carbon build up. Most motors when they get old read higher compression than they actually are holding because carbon.

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