1969 fan cluch - Team Camaro Tech
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post #1 of 5 (permalink) Old Sep 23rd, 18, 12:45 PM Thread Starter
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Rick
 
Join Date: Feb 2018
Location: Palm Desert CA
Posts: 70
1969 fan cluch

My 1969 camaro has a aftermarket sbc 350 with a long water pump. I don't know the specs of the engine but deffinately no hight lift cam. I have been tracking down a high temp readings averaging approx. 200-210 degree temps during the hot days in Palm Desert with AC off (because of the higher temps with it on. (95-110 degrees). I dont drive it much in the summer even thought I have aftermarket AC. Timing is good 12* btdc, if anything, running a tad rich (but better than lean, i guess). Two things I have noticed that needs fixing, 1, the fan (6 blade) is inside the shroud with the back of the blades (closest to the engine) even with the shroud opening. To get the blade half in and half out of the shroud the fan must move approx. 1 inch toward the engine. 2nd issue is the fan clucth is toast. It will turn but intermittely...it feels like the coil spring or internals are in pieces and crunching around, if that makes any sense. I measured the current fan clutch (FC) and it measures correctly with the dimentions I have found on the Hayden website for a 69 camaro (3.11 inches in height). I haven't been able to find a FC that is 1 inch shorter that will work to get the fan 1/2 in and 1/2 out of the shroud. So here is my question(s), does anyone know of a FC about 2.11 inches in height that will work. The alternative is to eliminate the FC and run the fan with a spacer that will put the fan 1/2 in and 1/2 out of the shroud. The additional fan noise without a FC will not bother me. Any other suggestions of fixes are welcome.

Thanks
Rick
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post #2 of 5 (permalink) Old Sep 23rd, 18, 01:56 PM
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Don
 
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Re: 1969 fan cluch

Why donít you just replace the clutch and see how it performs as is?

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post #3 of 5 (permalink) Old Sep 24th, 18, 04:28 PM Thread Starter
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Rick
 
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Re: 1969 fan cluch

I may have too.
Thanks
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post #4 of 5 (permalink) Old Sep 24th, 18, 04:54 PM
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I am running a factory fan and clutch. My radiator is a copper/ brass original style 4 core from classic Industries. A high flow waterpump, factory shroud,and thermostat. At 100 degrees sitting in traffic with the vintage air on, I'm running almost 180 degrees. My timing is 17 -18 degrees. Hope this helps.

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1969 x-77 Z/28 orange/ white stripes, named by my daughter "Clementine ", M-22 close ratio, 4:10 12 bolt, CE 302. Hugger orange with white stripes. White standard interior. Restoration complete May 2018
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post #5 of 5 (permalink) Old Sep 25th, 18, 06:34 PM Thread Starter
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Rick
 
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Re: 1969 fan cluch

Thanks for the info keith. I think I'll do as Don suggest and replace with another one and see if any temp changes.

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Rick
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