Fan clutch
Thread Starter
Melting Slicks
Joined: Dec 2009
Posts: 3,233
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From: Thunder Bay
Fan clutch
I need to replace the fan clutch on my '79. There are a bunch available on Rock Auto, and a few at my local auto parts store. Trying to narrow down the options. Anyone know what the GM part number is for a '79 fan clutch?
Thread Starter
Melting Slicks
Joined: Dec 2009
Posts: 3,233
Likes: 657
From: Thunder Bay
The guy who runs the local parts store is a friend of mine and says his experience with Hayden fan clutches is so bad he won't sell me one. It sounds like they are using one part to cover multiple applications and as a result have made the clutch so tight the fan runs almost at engine speed all the time. Ideally I'd like to find an NOS part or a good used one. No one has a parts book for '79?
Safety Car
Joined: Nov 2005
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From: Arizona - If you don’t know CFI, STOP proliferating the myths around it...
The guy who runs the local parts store is a friend of mine and says his experience with Hayden fan clutches is so bad he won't sell me one. It sounds like they are using one part to cover multiple applications and as a result have made the clutch so tight the fan runs almost at engine speed all the time. Ideally I'd like to find an NOS part or a good used one. No one has a parts book for '79?
Had a 1976 L-82, 4-sp
Joined: Mar 2011
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From: Some days your the dog and some days your the hydrant.
Royal Canadian Navy
I bought mine from Summit a few years back. No issues.https://www.summitracing.com/int/par...model/corvette
Last edited by resdoggie; May 29, 2019 at 09:27 AM.
Drifting
Joined: Aug 2009
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From: new iberia la
I bought mine from Summit a few years back. No issues.https://www.summitracing.com/int/par...model/corvette
Thread Starter
Melting Slicks
Joined: Dec 2009
Posts: 3,233
Likes: 657
From: Thunder Bay
Failure is not the concern. The common complaint seems to be that the aftermarket clutches are too tight and as Buccaneer said, they sound like a jet on takeoff.
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Had a 1976 L-82, 4-sp
Joined: Mar 2011
Posts: 5,338
Likes: 1,213
From: Some days your the dog and some days your the hydrant.
Royal Canadian Navy
Maybe get a flex fan? Now you will get complaints. My HD fan doesn't sound any louder than the oem did which was HD for the A/C. Good luck with whatever you choose.
Safety Car
Joined: Nov 2005
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From: Arizona - If you don’t know CFI, STOP proliferating the myths around it...
It's not a tight issue per-say, but since they are temperature sensitive, it would not release like it should with the HD clutch and stayed engaged which then sounded like a jet taking off at WOT also sucking up some power. Standard clutch for me worked just fine and still does.
Drifting
Joined: Aug 2009
Posts: 1,346
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From: new iberia la
[QUOTE=
Failure is not the concern. The common complaint seems to be that the aftermarket clutches are too tight and as Buccaneer said, they sound like a jet on takeoff.[/QUOTE]
The HD and SD Haydens roar for about 30 seconds on start up.. it tells you that on the box..after that its no louder than a stock fan but at 50 mph it pulls more air .. .. your fan is whisper quiet because its NOT moving much air.. it gets 110* here.. those are ineffective with A/C
Failure is not the concern. The common complaint seems to be that the aftermarket clutches are too tight and as Buccaneer said, they sound like a jet on takeoff.[/QUOTE]
The HD and SD Haydens roar for about 30 seconds on start up.. it tells you that on the box..after that its no louder than a stock fan but at 50 mph it pulls more air .. .. your fan is whisper quiet because its NOT moving much air.. it gets 110* here.. those are ineffective with A/C
Last edited by fishslayer143; May 30, 2019 at 07:24 AM.
