Northstar Engines and System Technical Discussion Discussion, Compression test for head gasket? in Cadillac Engine Discussion; Will a bad head gasket show up as low compression in a cylinder on the N*? I bought a used ...
Automobile(s): None now...1972 Challenger=my pride and joy.
Sonoma Co, CA
Compression test for head gasket?
Will a bad head gasket show up as low compression in a cylinder on the N*? I bought a used one for my 94 STS, and while the compression test shows great, I'm worried about the headgaskets failing at some point in the future. Thanks!
A really bad gasket might show up . I set the engine up on the stand pluged all but the highest coolant hole filled with water and air pressure tested each cyl in the firing order (fewer turns of engine w/o oil pressure) to check for gasket leaks .