over heating
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=6409
Printed Date: November-30-2024 at 7:54pm
Topic: over heating
Posted By: p/allen
Subject: over heating
Date Posted: April-22-2007 at 5:24pm
I have a thermo electron concuerer crusader 220hp 302 .
The engine seams to be over heating intermitently for the last couple of years . Last year I thought I had it fixed . When I went to Green Lake it ran fine the first day but over heated the second . Then it came backdown and ran fine . I checked all the hoses for crud but didnt find anything but little pieces of rust scale . I blew through all the holes to be sure they were coming out where they were supposed to .I have replaced the impeler and the thermostat . I have not replaced the circulating pump . I have not had an impeler loose an ear since I have owned it for 13 years . I dont think there is any blockage
today I ran it in the driveway with a water hose going into a bucket and sucking the water out with the intake hose that was disconnected from the bottom of the boat.
it stayed around 145 but occasionaly rose to 165 . Should it stay lower . Any help would be helpful. Does the impeller have to have a prime before it will suck water ?
Thank you
Pat
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Pat
http://i175.photobucket.com/albums/w146/72ccfan/100_5977-1.jpg - My 72 Skier
Rock River
Dixon,ILL.
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Replies:
Posted By: Munday
Date Posted: April-22-2007 at 9:42pm
Nope self priming,I'd check everywhere for a slight air leak the pump will pull air instead of water every time.Even the threads on water pickup if you have any pipe fittings.
Goodluck
Munday
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Posted By: p/allen
Date Posted: April-29-2007 at 3:25pm
Impeller seems to be working ok . It pumps about 4 gals. in 15 seconds . I opened the petcock on the side and reved up and water sprayed out . Then I put my finger over the petcock and felt pressure, This leads me to believe that the circulating pump is good . I took out the thermostat and it still over heated . IM LOST !!!!
Thanks, Pat
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Pat
http://i175.photobucket.com/albums/w146/72ccfan/100_5977-1.jpg - My 72 Skier
Rock River
Dixon,ILL.
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Posted By: rudderdad
Date Posted: April-30-2007 at 2:54am
How old are the hoses? You could have one sucking closed.
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rudderdad
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