1977 F250
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New User
Joined: Feb 2001
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1977 F250
I have a 1977 F250 with a 460 engine in it. It runs great, and has a new thermostat, clutch fan and waterpump. The temp gauge has a new sending unit, but the temp on the gauge goes full hot after as little as a mile. I put a thermometer on the thermostat area after I ran it awhile and the temperature never got over 160. Does anybody know if it's just the gauge, or some other gremlins?
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
1977 F250
Bob, Does the truck show signs of being hot, like boiling over or steaming? Sounds like a faulty guage. Why did you add those new parts?
John
jowilker
Club FTE since 01 01
NC Chapter
66 F100s
In the still cool hours of the night,
you can hear chevys rusting away.
John
jowilker
Club FTE since 01 01
NC Chapter
66 F100s
In the still cool hours of the night,
you can hear chevys rusting away.
Senior User
Joined: Jan 2000
Posts: 103
Likes: 0
1977 F250
I have the same setup, ' 77 with a 460 and the temp always reads high also but never out of the "normal" range. I came to the conclusion that it must be the calibration of the temp gauge since the engine runs fine and there are no signs of overheating ie hot rubber, slowing down, boiling over etc. If you get a little figgity about the temp just make sure you check the radiator often and keep the oil up and fan clear. Sometimes it helps to run the heater to blow some of the heat away. My temp gauge goes up and down with the rpm of the motor. When I'm at a light the gauge reads hot but as soon as I'm moving it cools down again. (sorta runs in sync with the oil pressure) Hope this is a little re-assuring for you.
Junior User
Joined: Apr 2000
Posts: 77
Likes: 1
1977 F250
You might want to pick up an after market gauge from your local parts store.They are simple to install and if you use a t-fitting you can keep you original gauge hooked up as well.This is cheap insurance to prevent you from frying your engine.
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New User
Joined: Feb 2001
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1977 F250
Many thanks to all who replied. I bought the parts because my work sometimes takes me to remote areas, and the truck has to be absolutely dependable. The pump bearing was loose, and the fan clutch was weak, so both were replaced. This is the first Ford truck I've owned, so I'm not familiar with any quirk they would have. I had a 68 Lincoln about 13 years ago, but it is different then a truck. again, many thanks to all.
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
1977 F250
I'd say for an absolutely dependable 1977 model truck, the Ford is the only way to go. :-)
John
jowilker
Club FTE since 01 01
NC Chapter
66 F100s
In the still cool hours of the night,
you can hear chevys rusting away.
John
jowilker
Club FTE since 01 01
NC Chapter
66 F100s
In the still cool hours of the night,
you can hear chevys rusting away.
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Freshman User
Joined: Feb 2001
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1977 F250
ive owned every type ford there is [trucks] if you dont have a fan shroud try that some of them need it also make sure your clucth on your fan works properly
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New User
Joined: Dec 2000
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1977 F250
Rebuilt my 77 460 and have the same thing happening,I have put 9000 miles on the re-built engine,just keep an eye on oil and coolant level,the panel cluster regulator may cure the problem.
Also,make sure the cluth fan is operating properly.I believe you'll be ok.
Also,make sure the cluth fan is operating properly.I believe you'll be ok.
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