Truck overheating
Cargo Master
Joined: Nov 2011
Posts: 3,354
Likes: 48
From: Great American SouthWest
Well .. Ultra ranger presented some food for thought , so it's the stats job to keep the engine running at the optimum running temperature and with no stat the engine could run to cold , however the stat removal will not cause the truck to overheat unless there is something different about the 351-400 cooling system ?
New User
Joined: Oct 2016
Posts: 21
Likes: 0
I had a 351 in a 76 merc . 114 mph on a flat stretch , it developed a fuel leak at the fuel pump itself , after further inspection I noticed the fuel was coming out 1/4 hole on the pump itself , so I plugged it . Days later I checked the oil and noticed the level was very high and thinned out . Replaced the pump and changed the oil and gas in the oil pan. huh!!
Cargo Master
Joined: Nov 2011
Posts: 3,354
Likes: 48
From: Great American SouthWest
I had a 351 in a 76 merc . 114 mph on a flat stretch , it developed a fuel leak at the fuel pump itself , after further inspection I noticed the fuel was coming out 1/4 hole on the pump itself , so I plugged it . Days later I checked the oil and noticed the level was very high and thinned out . Replaced the pump and changed the oil and gas in the oil pan. huh!!
Laughing Gas
Joined: Aug 2012
Posts: 920
Likes: 20
From: Malheur Co. OR
I had a 351 in a 76 merc . 114 mph on a flat stretch , it developed a fuel leak at the fuel pump itself , after further inspection I noticed the fuel was coming out 1/4 hole on the pump itself , so I plugged it . Days later I checked the oil and noticed the level was very high and thinned out . Replaced the pump and changed the oil and gas in the oil pan. huh!!
Laughing Gas
Joined: Nov 2013
Posts: 1,207
Likes: 60
From: S.E. Louisiana;so far USA
If, after you correctly check and correct any potential problems that have been mentioned so far, the problem still exists, do a compression check and/or use one of those exhaust gas checking techniques in the cooling system. If there is a blown head gasket it can result in overheating. I once had a '46 Nash with that problem.
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
Well he knows now... We've all had brilliant ideas at one time or another! Could probably make a whole thread on "repairs" here that didn't.
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