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Re: [GMCnet] Fan Clutch [message #61414 is a reply to message #61371]

Sat, 24 October 2009 01:35

Rick Denney

Messages: 430
Registered: January 2004

Karma:

Senior Member

Rob Mueller writes...

> Rick,

> So if I read what you note below correctly you couldn't hear the fan when it
> kicked in and out but the engine temps were OK?

I never heard the fan engage with the 4208. The engine temps wandered
around quite a bit, though it never overheated by any means. I could
never tell if or when the fan was engaged, so I have no idea how it
affected coolant temperatures. When the 4644 engages, I hear it but
the coolant temperature (as measured at the engine) would beging to
drop within seconds and would drop 10-15 degrees in less than 30
seconds. That may be overkill and it may be that the 4208 was doing
its job.

Part of my motivation was not just to cool the coolant, however. I was
also hoping to more positively flush hot air out of the engine
compartment when the engine was making a lot of heat. I have had fuel
overheat problems, and I'm seeing if that has an effect. It will take
a couple of years of usage to have a sense of that.

My measurements early on after installing the aluminum radiator (and
then the manifold) were confused by a temp gauge that went faulty on
me at some point, and by the temporary use of a Flowkooler-modified
thermostat (too much bypass) and a Stant (too little flow).

> Was this with a standard radiator or an aluminum one?

Aluminum. My old radiator has a repair plug in the core the size of a
baseball. I never knew what that was doing, either.

Rick "not ruling out going back to the 4208 at some point, now that
the behavio in practice is clearer" Denney

'73 230 Ex-Glacier "Jaws"
Northern Virginia

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[Message index]

		[GMCnet] Fan Clutch By: USAussie on Wed, 21 October 2009 22:36
		Re: [GMCnet] Fan Clutch By: Ken Burton on Wed, 21 October 2009 22:43
		Re: [GMCnet] Fan Clutch By: Rick Denney on Thu, 22 October 2009 00:33
		Re: [GMCnet] Fan Clutch By: Tin Gerbil on Thu, 22 October 2009 00:49
		Re: [GMCnet] Fan Clutch By: USAussie on Thu, 22 October 2009 02:57
		Re: [GMCnet] Fan Clutch By: Oldngray on Thu, 22 October 2009 07:22
		Re: [GMCnet] Fan Clutch By: Tin Gerbil on Thu, 22 October 2009 10:54
		Re: [GMCnet] Fan Clutch By: USAussie on Thu, 22 October 2009 15:37
		Re: [GMCnet] Fan Clutch By: Ray Erspamer on Thu, 22 October 2009 10:32
		Re: [GMCnet] Fan Clutch By: Tin Gerbil on Fri, 23 October 2009 00:44
		Re: [GMCnet] Fan Clutch By: Ken Burton on Fri, 23 October 2009 01:43
		Re: [GMCnet] Fan Clutch By: Tin Gerbil on Fri, 23 October 2009 09:28
		Re: [GMCnet] Fan Clutch By: Rick Denney on Fri, 23 October 2009 14:50
		Re: [GMCnet] Fan Clutch By: USAussie on Fri, 23 October 2009 18:31
		Re: [GMCnet] Fan Clutch By: Rick Denney on Sat, 24 October 2009 01:35
		Re: [GMCnet] Fan Clutch By: USAussie on Sat, 24 October 2009 02:47
		Re: [GMCnet] Fan Clutch By: emerystora on Sat, 24 October 2009 09:37
		Re: [GMCnet] Fan Clutch By: Ken Burton on Fri, 23 October 2009 21:18
		Re: [GMCnet] Fan Clutch By: WD0AFQ on Fri, 23 October 2009 22:56
		Re: [GMCnet] Fan Clutch By: Rick Denney on Sat, 24 October 2009 02:44
		Re: [GMCnet] Fan Clutch By: Rick Denney on Sat, 24 October 2009 02:38
		Re: [GMCnet] Fan Clutch By: GMCWiperMan on Sat, 24 October 2009 07:00
		Re: [GMCnet] Fan Clutch By: Ken Burton on Sat, 24 October 2009 09:09
		Re: [GMCnet] Fan Clutch By: USAussie on Thu, 22 October 2009 02:55
		Re: [GMCnet] Fan Clutch By: Rick Denney on Thu, 22 October 2009 04:05
		Re: [GMCnet] Fan Clutch By: rgleas on Sun, 25 October 2009 11:30
		Re: [GMCnet] Fan Clutch By: emerystora on Sun, 25 October 2009 11:52
		Re: [GMCnet] Fan Clutch By: Gary Casey on Sun, 25 October 2009 12:32
		Re: [GMCnet] Fan Clutch By: Tin Gerbil on Sun, 25 October 2009 13:05
		Re: [GMCnet] Fan Clutch By: emerystora on Sun, 25 October 2009 13:29
		Re: [GMCnet] Fan Clutch By: Tin Gerbil on Sun, 25 October 2009 17:38
		Re: [GMCnet] Fan Clutch By: emerystora on Sun, 25 October 2009 18:02
		Re: [GMCnet] Fan Clutch By: Tin Gerbil on Sun, 25 October 2009 18:51
		Re: [GMCnet] Fan Clutch By: RF_Burns on Thu, 22 October 2009 07:54
		Re: [GMCnet] Fan Clutch By: Ray Erspamer on Thu, 22 October 2009 10:40
		Re: [GMCnet] Fan Clutch By: GMCWiperMan on Thu, 22 October 2009 15:09
		Re: [GMCnet] Fan Clutch By: Gary Casey on Thu, 22 October 2009 17:17
		Re: [GMCnet] Fan Clutch By: Ray Erspamer on Thu, 22 October 2009 17:21
		Re: [GMCnet] Fan Clutch By: Tin Gerbil on Thu, 22 October 2009 10:23
		Re: [GMCnet] Fan Clutch By: Rick Williams on Fri, 23 October 2009 09:05
		Re: [GMCnet] Fan Clutch By: Tin Gerbil on Fri, 23 October 2009 09:43
		Re: [GMCnet] Fan Clutch By: amansfield1104 on Fri, 23 October 2009 10:16
		Re: [GMCnet] Fan Clutch By: roy1 on Sat, 24 October 2009 21:16
		Re: [GMCnet] Fan Clutch By: Ken Burton on Sat, 24 October 2009 21:19
		Re: [GMCnet] Fan Clutch By: roy1 on Sat, 24 October 2009 21:38
		Re: [GMCnet] Fan Clutch By: Larry on Fri, 23 October 2009 12:36
		Re: [GMCnet] Fan Clutch By: Ray Erspamer on Fri, 23 October 2009 13:12
		Re: [GMCnet] Fan Clutch By: Tin Gerbil on Fri, 23 October 2009 13:16
		Re: [GMCnet] Fan Clutch By: Ray Erspamer on Fri, 23 October 2009 13:43
		Re: [GMCnet] Fan Clutch By: Ken Burton on Sat, 24 October 2009 09:45
		Re: [GMCnet] Fan Clutch By: Tin Gerbil on Sat, 24 October 2009 11:24
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		Re: [GMCnet] Horsepower and Torque Converter Efficiency By: Gary Casey on Sun, 25 October 2009 09:13
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		Re: [GMCnet] "six-speed" transmission By: Gary Casey on Sun, 25 October 2009 12:02
		Re: [GMCnet] "six-speed" transmission By: emerystora on Sun, 25 October 2009 13:39
		Re: [GMCnet] "six-speed" transmission By: Gary Casey on Mon, 26 October 2009 07:07
		Re: [GMCnet] "six-speed" transmission By: Gary Casey on Sun, 25 October 2009 12:04
		Re: [GMCnet] "six-speed" transmission By: comcast on Sun, 25 October 2009 12:21
		Re: [GMCnet] "six-speed" transmission By: emerystora on Sun, 25 October 2009 14:01
		Re: [GMCnet] Horsepower and Torque Converter Efficiency By: Tin Gerbil on Sun, 25 October 2009 10:59

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