3-core CSF

zjwrekkr · 04-07-2004, 05:55 PM

so, i decided to drive my beater into work today so i could get the tires rebalanced and on my way home from work i started running above normal temps. just installed a brand new CSF 3 core rad from the radiator.com boys and its running hotter than the old leaky POS stock rad i had. any ideas?

Don 79 TA · 04-07-2004, 06:41 PM

you probably have air in the system

one trick that helps is to drill two very small holes in the outter part of the thermoustat, that will alleviate the air build up. on hole in the upper part, one in the lower part.

burp the system, if it's an open system, when you fill it up, jack the front end up, then let it warm up, that helps burp it faster

zjwrekkr · 04-08-2004, 09:16 AM

hmmn. i 'll have to try that....damn thermostat on the 5.2 is a bilch to mess with though.

zjwrekkr · 04-14-2004, 09:14 AM

ok so none of that worked. any other suggestions. i put in a new water pump about 10k ago.

Mr. MeatCleaver · 04-14-2004, 11:45 AM

Your thermostat might be bad [img]graemlins/iono.gif[/img]

Have you tried replacing that?

This is improbable, but you could also make sure your fan clutch is in good shape.

zjwrekkr · 04-14-2004, 12:04 PM

Quote:

Originally posted by Mr. MeatCleaver:
Your thermostat might be bad [img]graemlins/iono.gif[/img]

Have you tried replacing that?

This is improbable, but you could also make sure your fan clutch is in good shape.

put in a new thermostat last night. tried the hole drilly thing. fan clutch is fine.

Don 79 TA · 04-14-2004, 05:01 PM

i really gotta think you have air in the system causing this, or that there is an obsturction somewhere, like not enough air flow, bad fan clutch.

usually jacking up the front (in the case of an open system) helps the system to burp.
also a small hole in the thermo helps that too )that tip works great if you use under drive pulleys)

can you see the water circulating after the stat opens at idle, and is it filled?
do you have electric fans with a manual on/off or adjustable setting? perhaps thats off??

perhaps the radiator could be a defect as well, but i really gotta believe there is an air pocket causing this.

you have the right antifreeze mixture?

try calling radiator.com to help?

I asked about a 3core rad. for my MJ, and they were clueless on the phone, looks like i am going t o jeepradiators.com for it.

zjwrekkr · 04-14-2004, 08:14 PM

Quote:

Originally posted by Don 79 TA:

try calling radiator.com to help?

they're just jacking me around. can never get anyone but a secretary on the phone and she says, "well, i'll have someone call you" BS.

04-07-2004, 05:55 PM	#1
zjwrekkr SUCKER FISH Join Date: Oct 2002 Location: Edge, Life Posts: 22,393	so, i decided to drive my beater into work today so i could get the tires rebalanced and on my way home from work i started running above normal temps. just installed a brand new CSF 3 core rad from the radiator.com boys and its running hotter than the old leaky POS stock rad i had. any ideas? __________________ can it be that the good and the bad equal the free?

04-08-2004, 09:16 AM	#3
zjwrekkr SUCKER FISH Join Date: Oct 2002 Location: Edge, Life Posts: 22,393	hmmn. i 'll have to try that....damn thermostat on the 5.2 is a bilch to mess with though. __________________ can it be that the good and the bad equal the free?

04-14-2004, 09:14 AM	#4
zjwrekkr SUCKER FISH Join Date: Oct 2002 Location: Edge, Life Posts: 22,393	ok so none of that worked. any other suggestions. i put in a new water pump about 10k ago. __________________ can it be that the good and the bad equal the free?

04-14-2004, 11:45 AM	#5
Mr. MeatCleaver Trail Guide Join Date: Jan 2004 Location: Cotulla, Texas Posts: 3,923	Your thermostat might be bad [img]graemlins/iono.gif[/img] Have you tried replacing that? This is improbable, but you could also make sure your fan clutch is in good shape. __________________ 89 XJ Laredo 4door, 4.0, automatic, np231, sitting on 31" BFG all terrains. 89 XJ Sport 2door, 4.0, automatic, np242. Dead, currently being torn apart to make my other jeep work. 89 XJ Laredo 4door, 4.0, automatic, np242, sitting on 31" BFG all terrains. DEAD!! 2000 VW Beetle, "AWWWW its so cute!" Low pro's so low look like I'm ridin on blades.

04-07-2004, 06:41 PM	#2
Don 79 TA Jeeper Join Date: Mar 2004 Location: NY Posts: 46	you probably have air in the system one trick that helps is to drill two very small holes in the outter part of the thermoustat, that will alleviate the air build up. on hole in the upper part, one in the lower part. burp the system, if it's an open system, when you fill it up, jack the front end up, then let it warm up, that helps burp it faster

04-14-2004, 05:01 PM	#7
Don 79 TA Jeeper Join Date: Mar 2004 Location: NY Posts: 46	i really gotta think you have air in the system causing this, or that there is an obsturction somewhere, like not enough air flow, bad fan clutch. usually jacking up the front (in the case of an open system) helps the system to burp. also a small hole in the thermo helps that too )that tip works great if you use under drive pulleys) can you see the water circulating after the stat opens at idle, and is it filled? do you have electric fans with a manual on/off or adjustable setting? perhaps thats off?? perhaps the radiator could be a defect as well, but i really gotta believe there is an air pocket causing this. you have the right antifreeze mixture? try calling radiator.com to help? I asked about a 3core rad. for my MJ, and they were clueless on the phone, looks like i am going t o jeepradiators.com for it.