I thought the starter went out. Replaced it and tried to start. Engine turned over about 1/8 turn and sounded like it hit something solid. Very solid clunk. Any ideas?
Only pulled 2 plugs. Middle and rear on starboard side above starter. Thought there was moisture in middle, but when pulled rear plug water poured pout. Doesn't look like there is water in the oil. Going to pull the rest of the plugs and see if I can turn over by hand
Definitely 2 cylinders had water. started to pull head on that side. Did not finish before dark. exhaust manifold looks OK. Will try to get head off in next couple of days. Hope it is the gasket. Definitely water in front and rear cylinder on starboard side.
Pulled head. Magnafluxed. No cracks. Have gaskets set and will reassemble and install new impeller kit. What temp. thermostat should be in this engine? Any other possible causes?
140degrees well the manifold can still be the issue on the gasket did it show where the water traveled to cylinders unsally see damanged area on gasket the manifold can still be the issue if it was the middle 2 cylinders had water cause the riser is in middle and if its cracked high in manifold it could roll down to those two or the 2 in the rear too cause of a angle if sits on trailer or sloped ground it doesnt have to be all cylinders unless engine is sitting perfectly level and also the if the water was filling exhaust the to valve that are slightly open alowed the cylinders to fill and as the came on compression stroke the engine locked a good chance before the other exhaust valve had a chance to open did you have moisture in manifold when took manifold off or show signs of being wet with a only being able to get a 1/8th turn out of it the pumps wouldnt have been pumping thru manifold yet so it all depends on last time it ran id say
140degrees. Well the manifold can still be the issue. On the gasket did it show where the water traveled to cylinders? Usually see damaged area on gasket. The manifold can still be the issue if it was the middle 2 cylinders that had water, cause the riser is in the middle. If its cracked high in manifold it could roll down to those two or the 2 in the rear too because of the angle it sits at on the trailer or sloped ground. It doesn't have to be all cylinders unless engine is sitting perfectly level and also when the water was filling the exhaust the exhaust valve(s) that are open allowed the cylinders to fill. As they came on compression stroke the engine locked. Did you have moisture in manifold when you took the manifold off? Or show signs of being wet? With only being able to get a 1/8th turn out of it the pumps wouldn't have been pumping thru manifold yet, so the water came in the last time it ran.
Pulled head. Magnafluxed. No cracks. Have gaskets set and will reassemble and install new impeller kit. What temp. thermostat should be in this engine? Any other possible causes?
I had the same issue one time. When I would turn off motor it would diesel for like 5 to 10 seconds before it would stop. In the process the motor must of reversed cylinder/piston direction & sucked water in.
Pulled head. Magnafluxed. No cracks. Have gaskets set and will reassemble and install new impeller kit. What temp. thermostat should be in this engine? Any other possible causes?
i didnt see that he said he had a dieseling problem that guy just said he did once and it had same effect of the clunk the orginal poster basicly he tried to start it and it turned a 1/8th of a turn and thud he thought the starter quit but found water in cylinders has no clue where it came from i think he would have noticed the last time it ran that it was still running when he turn key off and doing funky stuff so im not so sure the dieseling was the issue. but my thoughts are he just bought the boat it needed work and now hes finding the water in cylinders we dont know enough to really say cause the water coulda came from the intake on a rainy day sitting on a hill up for sale wish we had backstory about the boat
cause in just a 1/8th of a turn the water didnt come from anywhere not the head or gasketand not the manifold it didnt even get pumped to far past the impeller it didnt turn enough
