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10-11-2020, 12:33 PM
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#1 |
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Registered User
Join Date: Dec 2010
Location: konawa ok/oakdale Ca.
Posts: 1,645
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Fan clutch tightening
Replacing the water pump and fan clutch on my 02 silverado.Im having hell judging how tight the nut is attaching it to the waster pump.I had a thick piece of copper wire going into the pulley and wrapped around an alternator bolt and it snapped it.From what I have read this nut is unlikely to loosen it's self.Is this true?I know the old one wasn't too terribly hard to remove.IMG_20201011_112008.jpg
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10-11-2020, 12:51 PM
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#2 |
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Senior Member
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,217
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Re: Fan clutch tightening
They tight them selfs when spinning
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David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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10-11-2020, 02:19 PM
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#3 | |
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Registered User
Join Date: Dec 2010
Location: konawa ok/oakdale Ca.
Posts: 1,645
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Re: Fan clutch tightening
Quote:
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10-12-2020, 04:38 PM
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#4 |
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Registered User
Join Date: Feb 2019
Location: Centurion, Gauteng, South Africa
Posts: 227
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Re: Fan clutch tightening
On a petrol engine, they do not have to be tightened much.
The issue comes in when the engine is switched off. The compression of a petrol engine is low compared to a diesel engine and therefore, when switching a petrol engine off, it takes "much" longer to come to standstill than a diesel engine - which decelerates to standstill much more rapidly (due to its high compression) than a petrol engine and thus the inertia of the spinning fan clutch could undo itself. That's why the risk of the risk of the fan clutch undoing itself is more of an issue on diesel engines where they must be tightened well.
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Best regards, Philip Chev: '70 C10 (350 V8 / 700R4 ) & '59 Apache ( 235, 3-sp ) Jensen Interceptor '74: Mopar 440(EFI'ed) / 4L60e Jaguar: '72 E-type Coupe V12 & '74 E-type V12 Convertible & '80 XJS V12 |
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