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Unread 07-21-2015, 01:46 PM   #1
JeepdaddyRC
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1983 CJ5 
 
Join Date: Oct 2014
Location: , Wisconsin
Posts: 277
Jeep heat

Purchased an 83 CJ with OEM heavy duty cooling (3 core radiator, fan shroud, fan clutch). Lots of heat comes off the engine bay while driving and when stopped. Two seperate OEM gauges indicate normal operating temp. My 79 CJ with standard cooling does not give off this heat. Is this a result of the heavy duty cooling system and more efficient radiator, or a symptom of another problem?

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Unread 07-22-2015, 08:56 AM   #2
JeepdaddyRC
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1983 CJ5 
 
Join Date: Oct 2014
Location: , Wisconsin
Posts: 277
Opinions and experience welcome here...
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Unread 07-22-2015, 09:33 AM   #3
Mike Romain
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1986 CJ7 
 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant, Nova Scotia, Canada
Posts: 16,550
You have more parts holding the heat in place outside of the engine maybe? One of those if it ain't broke... scenarios.
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89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
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Unread 07-22-2015, 10:12 AM   #4
bob4703
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1974 CJ5 
 
Join Date: Feb 2015
Location: Easley, SC
Posts: 92
Have you verified that the clutch fan is working properly? After 30+ years it may not be as efficient as when new. Also is your radiator 100% clean of sediment, and not partially clogged? In theory your fan should push cooler air from the engine compartment through the radiator to cool engine coolant. This is when you are driving at slow speeds and not enough outside air is forced through the radiator. Check the entire cooling system. It may be time to replace the clutch fan with an electric fan. If you mount it on the grill side of the radiator you'll draw in cooler outside air--except for this week where air temp here has been close to 90. Good luck!
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