cooling mystery

comet traveler

Seaman Apprentice
Joined
Feb 4, 2005
Messages
37
Ok, well maybe not so much a mystery but seemed kinda weird. Have a 1986 Force 50 HP. Was out on the lake Thurs cruising and the engine kind of started coughing out, so I backed off of it and it continued to sputter some but only lasted about 30 sec. Well, took it slow to a dock and shut it off and had a look at it. Couldn't find anything out of the ordinary so I had the other guy I was with crank it up, sounded fine but I noticed there was VERY little water coming through the hole. So I felt the engine, it wasn't like scorching hot or anything but I wouldnt want to lay my hand there on it for long. Well sat around a few mins and started it up and then had typical water flow again. So, went on my way keeping a close eye on it and for the most part it seemed normal. I did notice one other time it seemed to stop again. I also noticed that even when it was pumping normal, there was some steam coming out with the water. So I replaced the impeller (the old one looked to be fine though) and am going to replace the thermostat (had the original in it and looked a bit gunked up). Should this fix it? I can't really think of anything else. All water channels seem clear, etc. I do know I don't want to mess it up. It runs like a charm and I want to keep it that way. thank you!!
 

scotiany

Senior Chief Petty Officer
Joined
Aug 3, 2002
Messages
749
Re: cooling mystery

I think you're on the right track with the thermostat. Don't throw away your old impeller either.
 
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