Hope
trich11
Member Posts: 108 ✭✭✭
I had our boat mechanic do a tune up which he completed today. Started the port engine and no change. Surprised because the cap and rotor was shot, he did a compression check. Number 3 has 60 lbs and 5 has ZERO! He is going to pull the head early next week and hopefully he will find a bad head gasket. If not, a new long block. This sucks.
Comments
PC BYC, Holland, MI
If you yank heads, you may as well keep going..
I've seen sloppy timing chains allow the timing between crank and cam to jump, which will foul valve event timing and show funky compression readings.. cross your fingers..
I reckon I could look it up, but I'm mobile right now: I think these motors are non inference engines, which means the piston won't smack the valve no matter how jacked up the timing is..
A indicator of jacked up shaft timing and fuel sync is seriously beat up rotors and rotor buttons... This is why I spill this on your page, and not just to give false hope.
Btw: head gaskets blown enough to not allow compression are going to expose the water jacket passages, which will leak into the crankcase- there is no way around that... Look in your crankcase for milkshake.. if none, you've got reason to rejoice. :-D
I'd wager you need a timing chain/belt/gear- whatever flavor...
PC BYC, Holland, MI