I have my compressor and I placed the piston at just before TDC on the compression stroke. I put my air adaptor in the spark plug hole and applied air and I'm hearing leaking. I tried another cylinder and I'm hearing leaking. The air is only at about 40 psi cuz I haven't gotten to crank the compressor up again yet.
Previously I took the engine/jeep to a mechanic who told me I had 150 psi across all cylinders. Is there something wrong with this picture? If I have that good of compression per cylinder should it not be leaking when I apply air from the compressor?
Is it possible I have a blown head gasket across all cylinders? Why do I think that. I'm burning oil and it appears to happen when I'm at idle for a few minutes and then I press on the gas. This indicates or points to, I've learned, the valve seals which I why I'm going about changing them. Could a blown head gasket across all cylinders produce the same effect?
Thanks for any response and help.
Bill