454 Merc overheating, PLEASE HELP!!!
#21
Ginger or Mary Ann?
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Don't forget to unhook the speedo tube before removing the drive. Easiest to do it 1st since you can raise the drive with the rams.
Also, what does replacing the bellows have to do with the water supply? I'm thinking nothing!
Also, what does replacing the bellows have to do with the water supply? I'm thinking nothing!
#22
Ginger or Mary Ann?
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Just to eliminate 1 area. Are you SURE the inlet hose feeding the sea water pump (the one on the bottom and to the side of the motor) is a hard wall hose? You will not be able to squeeze it by hand if it is the right hose.
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Originally Posted by US1 Fountain
Just to eliminate 1 area. Are you SURE the inlet hose feeding the sea water pump (the one on the bottom and to the side of the motor) is a hard wall hose? You will not be able to squeeze it by hand if it is the right hose.
BT
#24
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I would try to pressurize the cooling system, and see if it holds pressure. Block the outlets, and pressurize the intake. There is a nice gadget for use with automotive cooling systems, with a hand pump and pressure guage. You pressurize the system, and see that the guage doesn't go down due to a leak. You may be able to adapt it to your system with a bit of ingenuity. With water in the cylinders, it sounds like water is probably backing up from the exhaust side, especially since you notice this when you shut off the engine (no more exhaust blowing the water out).
Good luck!
Michael
Good luck!
Michael
#25
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Dirthead, didn't you pull the drive when you pulled the engine????? I guess not.
I guess it could be done if you have enough room to move the engine forward. The drive will have to come off anyway to put the engine back in. You have to check alignment on the drive with an alignment tool. You actually adjust the angle/position of the engine in relation to the drive. This is crucial to the life of your coupler(where the drive goes into the engine). You might also consider replacing the coupler since the engine is out.
A lot of good replies so far, and the problem could be caused by a number of them or a combination of them.
If I were you I would replace the hose from the gimbal to the sea pump and rebuild the sea pump with a full kit that includes the new housing. These may not necessarily be the cause, but they could be contributing to the problem.
I guess it could be done if you have enough room to move the engine forward. The drive will have to come off anyway to put the engine back in. You have to check alignment on the drive with an alignment tool. You actually adjust the angle/position of the engine in relation to the drive. This is crucial to the life of your coupler(where the drive goes into the engine). You might also consider replacing the coupler since the engine is out.
A lot of good replies so far, and the problem could be caused by a number of them or a combination of them.
If I were you I would replace the hose from the gimbal to the sea pump and rebuild the sea pump with a full kit that includes the new housing. These may not necessarily be the cause, but they could be contributing to the problem.
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We are in SE Iowa, and typically boat at Lake Rathburn. Red Rock and Lake Coralville once in a while. We try to hit the Ozarks a few times a year.
How about you?
How about you?
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Anymore suggestions??? I appreciate all the ideas, however most of them have already been looked into before I posted this initial question. I greatly appreciate all of your comments. If you have anymore, please fire away.