morto

can some one post up what should be normal compression test for a frst in good order please, im going to do one on my wifes, do you do it with the engine at normal operating temps or cold?

thanks
andy

XRT_si

iTrader: (2)

Let it warm up to running temp. Then disconnect coil, remove all leads and plugs.
Screw in compression tester, and with throttle open let it turn over for 5-10 seconds.
Should get around the 150psi mark, but as long as all four are within 15psi of each other or so you should be fine. Anymore than that indicates a problem, but it wont really tell you where the problem is.

Hope that helps