cooling confusion
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 2,161
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From: pr, frederick md.
cooling confusion
my 78 w/ 383, reguraully runs 10-20 deg. hotter than id like even on a warm day. (everything is new, spoiler in place ect....) today i drove about a 10 mile round trip, in 4 deg. weather and it never got over 150 deg.!?? what gives? any ideas?
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
The cool air is cooling your system down enough so the thermostat never opens.
How hot does it usually run?
Melting Slicks
Joined: Aug 2003
Posts: 2,135
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From: Dayton Oh
I got to agree with Z-man. I'm having to cover my rad up here in NW Ohio on my Chevy HD PU to get some heat into the cab. Temps have been below 0*F at night and just above 0*F during the days this week.
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 2,161
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From: pr, frederick md.
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 2,161
Likes: 0
From: pr, frederick md.
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
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Racer
Joined: Mar 2006
Posts: 366
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From: Houston Texas
I've noticed the same effect as turtlevette, and fan speed doesn't have much apparent effect. It seems that just including the heater core in the coolant flow circuit reduces engine temps enough to see it on the temp gauge. Maybe just the increase in cooling surface area???
Team Owner
Joined: Jan 2007
Posts: 53,648
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From: Southern Cal Ca
St. Jude Donor '22
the bypass hose lets water flow throught the block.
Water cold enough that the motor doesn't warm.
Only relief is block radiator air flow.
Heater cores are small radiators.
I carry cardboard/floormats and apply as weather demands.
Water cold enough that the motor doesn't warm.
Only relief is block radiator air flow.
Heater cores are small radiators.
I carry cardboard/floormats and apply as weather demands.
Race Director
Joined: Mar 2006
Posts: 14,112
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From: Florida
Many, many moons ago, people would get ready for winter, put snow tires on, change thermostat to at least 195°, and put fresh antifreeze in.
After having all that done, and you heater didn't put out, then it had to be boiled out, but nowadays they can't use the good stuff to boil them out.
After having all that done, and you heater didn't put out, then it had to be boiled out, but nowadays they can't use the good stuff to boil them out.
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Team Owner
Joined: Aug 2006
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From: Columbia Missouri
Thread Starter
Melting Slicks
Joined: Dec 2004
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From: pr, frederick md.
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
I think a car or truck that heats up that fast has cooling issues. Bad circulation or components aren't operating at full efficiency. Drain half the water out of a proper cooling system and it'll heat up twice as fast.