I broke some very rusted exhaust manifold bolts, so both heads came off. Original engines, boat has +/- 1,600 hours, but this engine is .040 over so was re-built at some point, but don't know when. Has been running fine, appears to be firing fine, though compression is on the low side (115-125). While they're off, I'm going to have the heads resurfaced (including exhaust manifold surfaces). While I'm at it, is there anything else I should be doing - such as have the seats ground? Or just lap the existing valves? Any other valve work I should consider? Replace the valves? Replace the springs or seals?
I don't mind investing some money if it makes sense.
Thanks for any thoughts.
I don't mind investing some money if it makes sense.
Thanks for any thoughts.