Originally Posted by Carl-T705
If you ran the engine
long enough without coolant
to seize the engine
you did damage to it. I doubt it's a damaged head gasket
. The piston got hot enough to seize in the bore, that's what locked the engine . If your engine has any fore and aft angle to it, the bore at the highest elevation is the one that locked the engine down. My guess is the piston rings are welded to the piston or simply the rings are broken. The continued running of the engine is destroying the bore and the block will need an oversized bore and new pistons and rings. Be prepared to spend some serious money
Indeed but the OP never said motor
seized. His complaint is "However, now the engine belches white smoke all the time. It doesnít go away after you run the boat
for awhile. So Iím thinking that something happened in the overheat situation, maybe a head gasket
or something blew. I really donít know much about these things."
Leak down test could give you more information. Smoke is either coolant
. Really need more info to tell, like does it use coolant, does it overheat still, does the smoke smell like diesel
or rotten apples, or like salty steam.