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Old 08-26-2006, 08:47 PM   #22
faster than you think
Join Date: Mar 2003
Location: Denver, CO

Well, bad news guys. I did a few more checks and the results don't seem good.

I tried a leakdown test with the cams removed, and I could only get 60-70% leakdown at best, depending on which cylinder. Just to be clear. I put in 100psi and could only hold 30-40 psi. Ive never seen such a leaky combustion chamber. I wanted to rule out any ring seal problems because the motor is 100% fresh and has never been fired, so I put a little oil into a couple of the cylinders to try and stop any ring gaps, and nothing seemed to improve. I guess the upshot, if there is any is that it looks like my leakage is isolated to the head and has nothing to do with the shortblock. Still quite annoying. I guess the head is coming off for sure. Bent valves? Bad valve job? What the hell went wrong?
1967 Volvo 122S
1992 Volvo 244 driver
qwkswede is offline   Reply With Quote