I finally have had enough of bump starting my Caddy in the snow. This is obviously a bigger problem than cranking speed, so I broke down and looked a little deeper.
This is what I found for compression, from pulley to flywheel, first dry, then with oil. Engine up to temp.
360, 390
250, 300
350, 350
350, 360
I'm set to re-ring this weekend but I was expecting a much larger change with oil. The fact that the truck would start almost immediately under all conditions before swapping the OEM head with a Topline makes me suspicious of the head. Lousy valve job? Bad lifters? Bad cam timing?
Any thoughts?
Chris