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Originally Posted by 318_IT  I just did a compression test on my 95 318TI M42. It has about 148k on it and the PO said that he put a new head on about 20k ago due to overheat and cracking the original head.
Anyways, my results seemed kind of low..I got 120psi straight across...I helped my father-in-law replace the HG on his 98 318TI M44 and it seems like we were more like 160-180 across the cylinders.
Any thoughts? |
It is good. You look for even numbers accross all cylinders not the psi number. If you want to know the cylinder piston condition you need to do a leak down test with a leak down tester...