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Chevy 350 57l marine Engine Cooling problems

M

Mitchell Kreger

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" Will troll at idle to 5mph j

" Will troll at idle to 5mph just fine, when brought up to cruising speed, it will overheat rather quickly. Replaced the waterpump, still having trouble. Anybody have any ideas???? "
 
" I had the same problem this

" I had the same problem this past weekend. So, if you find an answer please let me know.


Thanks,

Aron "
 
"A.did impellel have any missi

"A.did impellel have any missing material?If so,hoses must be removed and flushed until stuff is removed.B.Close seacock,insert water hose(dockside water presure)Open seacock and back-flush in case of restriction.C.Has thermostat been replaced w/correct one? Ron"
 
"my 5.7 had same problem. wou

"my 5.7 had same problem. would run a little hot under 3k, then over would climb fast.. Found piece of impeller that had been left after replaced!!"
 
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