Hello all. I am pretty new to boating and just finished my first season.
During the last few trips the engine started to overheat sporadically during slow speeds in the canals. When I increased the speed, the temperature started to go down slowly.
Now with the boat out of the water, I did change the impeller and all the seals that came with the water pump rebuild kit.
The coupling to the water tube was slightly melted. Also the seal on top of the water pump around the drive shaft was completely missing.
The impeller itself was not in bad shape, but I replaced it anyway.
My question is, what caused the coupling to melt and where did the problem start?
Did the exhaust gases melt the coupling and with that the water loss at that spot the water pump couldnt keep up with the cooling demand, or was there a problem with the water pump that caused the over heating?
Also, the gear oil was milky. I assume that this is due to the missing seal around the shaft. Is that correct?
Any input is greatly appreciated.
1995 A1G2
During the last few trips the engine started to overheat sporadically during slow speeds in the canals. When I increased the speed, the temperature started to go down slowly.
Now with the boat out of the water, I did change the impeller and all the seals that came with the water pump rebuild kit.
The coupling to the water tube was slightly melted. Also the seal on top of the water pump around the drive shaft was completely missing.
The impeller itself was not in bad shape, but I replaced it anyway.
My question is, what caused the coupling to melt and where did the problem start?
Did the exhaust gases melt the coupling and with that the water loss at that spot the water pump couldnt keep up with the cooling demand, or was there a problem with the water pump that caused the over heating?
Also, the gear oil was milky. I assume that this is due to the missing seal around the shaft. Is that correct?
Any input is greatly appreciated.
1995 A1G2
