I did a compression test on this m30 I got and got pretty lousy numbers.
125, 80, 60, 120, 118, 100.
I later realized after I popped the head off that the oring on the compression tester was ripped when I did the test.
I can only assume that this gave skewed results. The headgasket was new and I have no idea if the guy replaced the bolts or not. Can I button everything back together with the used bolts/gasket and get accurate numbers?
Also engine still has crosshatching visible.
125, 80, 60, 120, 118, 100.
I later realized after I popped the head off that the oring on the compression tester was ripped when I did the test.
I can only assume that this gave skewed results. The headgasket was new and I have no idea if the guy replaced the bolts or not. Can I button everything back together with the used bolts/gasket and get accurate numbers?
Also engine still has crosshatching visible.

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