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-   -   compression test yeilded 205,205,205,230 what does that mean? (https://www.homemadeturbo.com/hybrid-tech-8/compression-test-yeilded-205-205-205-230-what-does-mean-47839/)

model x 10-11-2005 08:35 PM

compression test yeilded 205,205,205,230 what does that mean?
 
So my engine is burning oil if I run it at high rpm so I did a compression test and one cylinder is 25psi higher than the rest. I was thinking the casue may be a bad oil control ring that is causing oil to wet the cylinder and increase the compression number.

does this sound possible? has anyone heard of results like this?

I'll probably try some seafoam or ATF in that cylinder overnight and change the oil and test it again.

WetNailer365 10-12-2005 06:29 PM

Re: compression test yeilded 205,205,205,230 what does that mean?
 
motor is to what? need more info?

con 10-12-2005 08:01 PM

Re: compression test yeilded 205,205,205,230 what does that mean?
 
sounds like 3 shitty cyls and one good one :P

model x 10-12-2005 08:03 PM

Re: compression test yeilded 205,205,205,230 what does that mean?
 

Originally Posted by highroller54
sounds like 3 shitty cyls and one good one :P

since when is 205psi shitty?

WetNailer365: what other info would you like?

con 10-12-2005 08:12 PM

Re: compression test yeilded 205,205,205,230 what does that mean?
 

Originally Posted by model x

Originally Posted by highroller54
sounds like 3 shitty cyls and one good one :P

since when is 205psi shitty?

WetNailer365: what other info would you like?

when its suposed to be 235 lbs

Semnos 10-13-2005 05:34 AM

Re: compression test yeilded 205,205,205,230 what does that mean?
 
i'm guessing bad valve seals.

model x 10-13-2005 04:21 PM

Re: compression test yeilded 205,205,205,230 what does that mean?
 

Originally Posted by Semnos
i'm guessing bad valve seals.

bad valve seals usually smoke at start up; I'll only get a little smoke at high rpm.

WetNailer365 10-14-2005 09:59 PM

Re: compression test yeilded 205,205,205,230 what does that mean?
 
is it a 4cyl 6cyl or an 8cyl
my guess is that it is a 4cyl... just cause one is higher like that is fine... my comp runs 255,255,275,255. and i have no probs

mycrx 10-15-2005 03:47 PM

Re: compression test yeilded 205,205,205,230 what does that mean?
 
try using another compression gauge, usually they all give different readings even the same brands.

sohcpwr 10-20-2005 05:45 PM

Re: compression test yeilded 205,205,205,230 what does that mean?
 
did you test that same cyl twice to make sure you didnt crank the engine over too many times??

shanerv 10-21-2005 05:39 PM

Re: compression test yeilded 205,205,205,230 what does that mean?
 
comp. in the 2XX's in a warmed engine is awesome enough. Just means you've got 1 Very healthy cylinder :)

JFoster 10-21-2005 09:15 PM

Re: compression test yeilded 205,205,205,230 what does that mean?
 

Originally Posted by shanerv
comp. in the 2XX's in a warmed engine is awesome enough. Just means you've got 1 Very healthy cylinder :)

Werd. I'm rockin 180-185 accross .... with 167k...and now its boosted.

absolutezroo 10-21-2005 09:31 PM

Re: compression test yeilded 205,205,205,230 what does that mean?
 
Your numbers seem well enough..and i won't even coment on the guy asking if you had a v6 after posting 4 sets of numbers... Anyway.. if your that worried about it a leakdown test is more accurate..but there's no need in your case to go to that extreme


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