Good morning,
New boat owner, so I'm going to try and explain this as best I can.
I recently bought a Wellcraft 170 classic(1989ish?) with a 3.0 MerCruiser engine.
Today I did a compression test with the following results.
Cylinder 1 - 180psi
Cylinder 2,3,4 - 150psi
(note, I just numbered...