Okay, so i finally got to do a compression test on my car today. And i got pretty bad numbers. I'm thinking of re-testing tmrw morning...

Engine is a USDM H22A1. 100,015 miles.

C1=90
C2=118
C3=122
C4=138

So should i just bury it or is there hope for it yet?

edit: forgot to mention the engine is not running.


Modified by d4rkn1t3 at 9:20 PM 6/11/2006

 

Try doing a compression test with the throttle wide open. See if your numbers change. But most of the time a compression test checks for your consistancy between cylinders. If your #1 cylinder still shows the lowest number, try doing a leaking down test for a more precise diagnosis.

 

im gonna try a WOT compression test also gonna see what kind of numbers i get with a little oil. If the numbers improve alot with the oil i may have found my problem... if not i may have some ef'd up valves.

 

goodluck.

 

dude if i ever get this god damn thing running, im gonna get some itb's on there...someday. Been reading your thread and i'm loving your setup.

 

Does not make a difference if you leave the throttle open or not, Ive tested both ways and saw no difference. With these numbers you are getting its time for a rebuilt no need to do a leak down, the motor has been beat and the nothing you can do other than rebuilding it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheAccordGuy &raquo;</TD></TR><TR><TD CLASS="quote">Does not make a difference if you leave the throttle open or not, Ive tested both ways and saw no difference. With these numbers you are getting its time for a rebuilt no need to do a leak down, the motor has been beat and the nothing you can do other than rebuilding it.</TD></TR></TABLE>

It does matter if your throttle is open. If you don't open your throttle you won't get anough air to your cylinders to create pressure.