Join Date: Dec 2000
Thanked 0 Times in 0 Posts
Re: Compression Test Results
My Bad. White smoke=coolant, blue smoke=oil. Sorry. Possible oil problems in the combustion chamber: bad oil control ring, usually accompanied by bad compression rings, or, bad valve guide seals, usually show up during downhill deceleration (high vacuum), blown head gasket, likely with to neighboring cylinder plugs showing up black. i would move on to a cylinder leak down test if possible, it would at least narrow everything down for you.
Did you ever get more objective compression results? If the compression was really headed towards 200 psi, you're starting to ask alot of your head gasket, as well as eventual cracks.
1979 CJ-7: 304, T-150, much is my rebuild
1985 CJ-7: 258, T-5, for Peru Excursion
1989 XJ: has seen every state except Hawaii
In search of lost paths and distant locations...