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Demon running hot #63444 05/25/08 08:40 PM 05/25/08 08:40 PM
Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii DemonKyle OP USMC LCPL
DemonKyle OP USMC LCPL Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii	How do you tell if the clutch fan is bad? My car overheats when idling in traffic. Gets to about 220* or so. I know that the water pump is good and the cooling system is clean. It cools down as soon as it gets out of traffic and gets some air flow into the radiator. Also, the radiator has been cleaned and recored so I have ruled that out. I'm almost 100% sure its either the clutch fan or radiator cap but the cap is also somewhat brand new. Any ideas? -Kyle

Re: Demon running hot [Re: DemonKyle] #63445 05/25/08 08:52 PM 05/25/08 08:52 PM
A Anonymous Unregistered
Anonymous Unregistered A	easy. if it turns easily while the engine is hot. its shot. fan belt tight? pully grooves arn't to "shiny"?

Re: Demon running hot [Re: DemonKyle] #63446 05/25/08 08:53 PM 05/25/08 08:53 PM
Joined: Jan 2003 Posts: 1,253 Slidell, LA Ronnman pro stock
Ronnman pro stock Joined: Jan 2003 Posts: 1,253 Slidell, LA	See link below for an old fan clutch discussion. Look down about 3/4's of the page at the test John Kunkle describes. Ron https://board.moparts.org/ubbthreads/show...rue#Post3452425

Re: Demon running hot #63447 05/25/08 08:53 PM 05/25/08 08:53 PM
Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii DemonKyle OP USMC LCPL
DemonKyle OP USMC LCPL Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii	No everything is tight

Re: Demon running hot [Re: DemonKyle] #63448 05/25/08 09:01 PM 05/25/08 09:01 PM
Joined: Nov 2007 Posts: 21,831 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,831 Kirkland, Washington	Cap only determines the pressure at which it pukes, nothing to do with temp. Do you have corrosion/scale in the rad? That could easily compromise its performance.

Re: Demon running hot #63449 05/25/08 09:24 PM 05/25/08 09:24 PM
Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii DemonKyle OP USMC LCPL
DemonKyle OP USMC LCPL Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii	Doesn't spin easily and also passed the tape test that Kunkel mentioned. Now I'm completely lost.

Re: Demon running hot [Re: DemonKyle] #63450 05/25/08 09:48 PM 05/25/08 09:48 PM
A Anonymous Unregistered
Anonymous Unregistered A	i had thermostats that never completely opened before. matter-o-fact, i once got 2 in a row that didn't.

Re: Demon running hot #63451 05/25/08 10:05 PM 05/25/08 10:05 PM
Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii DemonKyle OP USMC LCPL
DemonKyle OP USMC LCPL Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii	Thermostat is a 160 but opens up completely. Could the lower temp be a problem?

Re: Demon running hot [Re: DemonKyle] #63452 05/25/08 10:11 PM 05/25/08 10:11 PM
A Anonymous Unregistered
Anonymous Unregistered A	to much coolant mix, air in the system, inaccurate gauge, bad waterpump, crappy rad rebuild. lotsa variables at play here. fan blades should be 1/2 in 1/2 outta the shrowd.

Re: Demon running hot [Re: DemonKyle] #63453 05/25/08 10:44 PM 05/25/08 10:44 PM
Joined: Jan 2003 Posts: 1,253 Slidell, LA Ronnman pro stock
Ronnman pro stock Joined: Jan 2003 Posts: 1,253 Slidell, LA	DemonKyle - Does the system build up presure? The should be hoses hard to compress. Does the fan blow a ton of air when the engine is revved? It should. Ron

Re: Demon running hot #63454 05/25/08 11:03 PM 05/25/08 11:03 PM
Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii DemonKyle OP USMC LCPL
DemonKyle OP USMC LCPL Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii	Quote: to much coolant mix, air in the system, inaccurate gauge, bad waterpump, crappy rad rebuild. lotsa variables at play here. fan blades should be 1/2 in 1/2 outta the shrowd. 50-50 Prestone mix, brand new gauge from Auto Meter w/ sending unit, brand new pump and radiator was cleaned and recored.

Re: Demon running hot [Re: Ronnman] #63455 05/25/08 11:05 PM 05/25/08 11:05 PM
Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii DemonKyle OP USMC LCPL
DemonKyle OP USMC LCPL Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii	Quote: DemonKyle - Does the system build up presure? The should be hoses hard to compress. Does the fan blow a ton of air when the engine is revved? It should. Ron Builds pressure just fine and fan blows plenty of air. Also now that I think about should I worry about the fact that I can completely depress the top hose when the car is cold. Its as if there is no water in the hose but I can hear it suctioning however when I let go of the hose

Re: Demon running hot [Re: DemonKyle] #63456 05/25/08 11:07 PM 05/25/08 11:07 PM
A Anonymous Unregistered
Anonymous Unregistered A	runnin' a shrowd (sp?)? check for a stubborn air pocket? 7deg celcius here and tornado warnings...great

Re: Demon running hot #63457 05/25/08 11:09 PM 05/25/08 11:09 PM
Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii DemonKyle OP USMC LCPL
DemonKyle OP USMC LCPL Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii	Stock fan and shroud.

Re: Demon running hot [Re: DemonKyle] #63458 05/25/08 11:13 PM 05/25/08 11:13 PM
A Anonymous Unregistered
Anonymous Unregistered A	well that just about covers all the bases. check for a air pocket. force the upper rad hose below the level of the top tank on the rad. make sure to do the same with the heater hoses. then top it up. also, make sure the resevoir is at the full mark. or.. your new engine may just like going to 220deg when idling.

Re: Demon running hot #63459 05/25/08 11:18 PM 05/25/08 11:18 PM
Joined: Nov 2003 Posts: 10,693 Surface of the Sun, AZ Hotwheelsjr I Live Here
Hotwheelsjr I Live Here Joined: Nov 2003 Posts: 10,693 Surface of the Sun, AZ	Hell, mine normally runs 210-220...you're worried?? Sorry, I can't help ya much -- I've been trying to get mine to cool down for 3 years. I gave up...

Re: Demon running hot [Re: Hotwheelsjr] #63460 05/25/08 11:22 PM 05/25/08 11:22 PM
Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii DemonKyle OP USMC LCPL
DemonKyle OP USMC LCPL Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii	I should also add that it has a bottle of Royal Purple cooler added into it.

Re: Demon running hot [Re: Hotwheelsjr] #63461 05/25/08 11:24 PM 05/25/08 11:24 PM
Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii DemonKyle OP USMC LCPL
DemonKyle OP USMC LCPL Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii	Quote: Hell, mine normally runs 210-220...you're worried? Well hell mike Theres a difference between our weather don't ya think. This is happening in low 70's night time crusing. Not 90* arizona heat. But hey at least its a dry heat

Re: Demon running hot [Re: DemonKyle] #63462 05/26/08 12:29 PM 05/26/08 12:29 PM
Joined: Sep 2007 Posts: 142 littlestown pa dustpan man member
dustpan man member Joined: Sep 2007 Posts: 142 littlestown pa	did you put a different engine in it and kep the old rad in it

Re: Demon running hot [Re: dustpan man] #63463 05/26/08 10:37 PM 05/26/08 10:37 PM
Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii DemonKyle OP USMC LCPL
DemonKyle OP USMC LCPL Joined: Jan 2005 Posts: 3,312 Marine Corps Base Hawaii	Quote: did you put a different engine in it and kep the old rad in it Yea it has a rebuilt 360. Nothing big. Old radiator was the 22" stock 318 one. Don't really see it not being able to supply enough cool water tho

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