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Seabees · 10-15-2022, 06:10 PM

Howdy boys, a young fellow in our club has a '29 that has a problem of overheating that I can't help him with. Long story short, it's had two engines in it, and it continues to overheat. Timing is correct, water pump seems normal, radiator has been back flushed, along with the block, and it still overheats. He is going to clean the radiator with a coolant system cleaner and see if that helps, but I am doubtful, due to the cleanliness of the water when we flushed it today. The only thing I can think of is there must be a reason water is not flowing. Damned if I know. We've had the pump off and it seems to be in good condition. The radiator seems to flow normal, but I haven't measured gpm flow. Should be around 40 if I remember correctly. I guess we're going to have to pull the radiator and clean it out professionally, unless we can get it to flow better. Any suggestions, other than the obvious, would be appreciated. Thanks guys, always like to hear your thoughts.

10-15-2022, 06:10 PM	#1
Seabees Senior Member Join Date: Jul 2017 Location: Eastern Oregon Posts: 206	Over heating. Can't figure this one out. Howdy boys, a young fellow in our club has a '29 that has a problem of overheating that I can't help him with. Long story short, it's had two engines in it, and it continues to overheat. Timing is correct, water pump seems normal, radiator has been back flushed, along with the block, and it still overheats. He is going to clean the radiator with a coolant system cleaner and see if that helps, but I am doubtful, due to the cleanliness of the water when we flushed it today. The only thing I can think of is there must be a reason water is not flowing. Damned if I know. We've had the pump off and it seems to be in good condition. The radiator seems to flow normal, but I haven't measured gpm flow. Should be around 40 if I remember correctly. I guess we're going to have to pull the radiator and clean it out professionally, unless we can get it to flow better. Any suggestions, other than the obvious, would be appreciated. Thanks guys, always like to hear your thoughts.