Re: Overheating Stumped...

[Jacob Fox <imfast101@xxxxxxxxx>]

Well if u got flow you're getting heat transfer somehow. I would think the extra core would just be more water in the system, not necessarily more transfer. Only thing I can think of, is that with the extra core you have, it takes longer for the flow to reach the motor. While ur stopped with the decrease in rpm, less water is flowing through it allowing it to become "stagnant" in the motor. With a larger rad you would figure u need a larger volume or it would be a bottlenecked system. Idk that's my .02 cents lol using a lil process knowledge here. Could very well be an airflow problem too. Need more volume of air for larger rad? Idk just a thought 

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On Aug 13, 2011, at 12:52 PM, Jimmy Peavy <peaver63@xxxxxxxxxxxxxx> wrote:

> Yeah, put a three row core back in it.
> 
> Jimmy
> 
> On 8/13/2011 12:32 PM, Bill M wrote:
>> So I'm trying to diagnose the issue that's causing my new 4-core
>> radiator to make the car run hotter than with my previous 3-core
>> radiator. Not only does it run hotter at cruising, but it starts
>> getting hot IMMEDIATELY upon stopping at a light to the point of being
>> scary.
>> 
>> Basically the only thing I changed id the radiator. Car is 318 Poly
>> with a mild cam, 7 blade fan, fan clutch (confirmed working), no
>> shroud (never had one), now new 180 deg high-flow t-stat, spring in
>> lower hose.
>> 
>> The symptom I cant figure out now is...after testing things today and
>> keeping an eye on temps w/ a laser thermometer, I turned it off to let
>> it cool and scratch my head. When the rad, and upper hose had cooled
>> to ~165, the lower rad hose was dead cold. I pulled it off and there
>> is no restriction in the hose or the pump. I looked in the water pump
>> from below and don't see anything up there either. It's not leaking
>> 
>> Any thoughts??
>> 
>> Bill M
>> 65 Coronet 500 'vert http://1962to1965mopar.ornocar.com/mmo62008.html
>> 73 Dart Sport, 00 Cherokee Sport, 05 Ram 2500 CTD, 4WD, QC, LB, Laramie
>> 21 Model T Depot Hack, 92 Accord, 06 Mazda 3
>> 
> 
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