GreatWhiteNarwhal
Recruit
- Joined
- Jul 23, 2016
- Messages
- 2
We recently bought a 2001 205 Sundowner with very low miles, original owner. During the test, everything was great. First time we took the boat out about a week later, it overheated as soon as we hit the harbor and would not cool back down. Forunately, we have Coast Guard friends and caught a tow back with them. So far we have checked the impeller, it looks great. All accessible hoses on the engine were checked and had no blockage. The thermostat was replaced, housing cleaned. The circ pump was also replaced. We ran the boat on muffs for a good 45 minutes, revved up and down, with absolutely no issues. We dropped the boat today and within 10 yards of the pier we had a high temp alarm. The hose going into the impeller is cold, and the line coming out going to the thermostat housing is hot. All of the hoses coming off the thermostat housing were scorching hot. What would the next step be? The boat ramp is about 45 minutes from our house, so we are trying to test as much as possible with muffs, but I am aware that limits some diagnostic abilities. Thank you for any help, we are really just hoping to get more than 5 minutes in the boat this summer!
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