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Old 09-26-2010, 12:42 PM   #1
into69z
"brand new second-hand"
 
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Join Date: Feb 2007
Location: White House, Tennessee
Posts: 526
how does the clutch fan work?

I want to know if anyone knows how to test a stock fan clutch? I had a few trucks, an 86, 89,and 96 all 3/4 ton with big block and heavy duty cooling. When those fans locked up, it sounded like you were turning 10,000rpm-till they cooled off-then back to normal. I have my 69 with a big block and the 4 row radiator,a/c, seven blade fan and a new fan clutch. I don't over heat until I get into stop and go traffic-it does not boil over,just the temp gauge goes to the middle. Are the fan clutchs all the same or are the newer ones designed diffferent? would the new ones fit the old trucks? How can I tell if my new clutch is performing correctly? Anyone have any idea about how much cfm's are produced with the stock system?
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Steve
69 3/4t custom camper
tilt,am/fm,speed warning,air gauge,buddy buckets,aux battery, big block,p/s,p/b,a/c
67 Camaro
96 Impala ss-sold
04 hybrid Honda-saving gas for the blue truck!:
b69:
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