[s-cars] Viscous fan clutch failure?

[Mark Strangways]

Yeah I really should have qualified that a bit more.
When I ripped mine out it was frozen solid.
Any high rpm acceleration sounded like crap, could not even hear the turbo 
over all that air.

Anyways I think I picked up 40 ish HP with it's removal.. and lost some 
weight over the front axle.
So far (last 2 years) I have not even worried about that fan, but it does 
heat up in stop and go with the a/c on.
The secondary fan does pull in and cool things down, but I hate having it go 
that far.

Mark
----- Original Message ----- 
From: "Joshua van Tol" <josh at spiny.com>
To: "Mark Strangways" <StrangConst at rogers.com>; <S-CAR-List at audifans.com>
Sent: Friday, May 11, 2007 6:33 PM
Subject: Re: [s-cars] Viscous fan clutch failure?


> Mark, that might be true on old cars without modern fan clutches, but  the 
> clutch is there to keep the fan from robbing too much power, and  also to 
> keep the noise down.  The idea is that the hotter the air  gets around the 
> fan, the more air it moves.  Plus, a viscous clutched  fan is able to move 
> much more air than an electric fan, and more  reliably too. They're not 
> without their problems, but they do have  some important advantages over 
> electric fans.
>
> On May 11, 2007, at 8:36 AM, Mark Strangways wrote:
>
>> Yank that sucka outta there and put in an electric.
>> Good for about 30-50 HP... Dyno proven
>>
>> Mark
>> ----- Original Message -----
>> From: "Peter Golledge" <petergolledge at gmail.com>
>> To: <s-car-list at audifans.com>
>> Sent: Friday, May 11, 2007 9:05 AM
>> Subject: [s-cars] Viscous fan clutch failure?
>>
>>
>>> Folk,
>>>
>>> My wife reported some unusual noise from her 95 S6 and no A/C.  I  check
>>> out
>>> the car last night... everything seems fine.  Get it up to  operating 
>>> temp
>>> with a drive, still no problems.  Looking at the primary fan I see it
>>> turning maybe 60 rpm with the engine idling.  Stops with the touch  of 
>>> bit
>>> of
>>> plastic scrap.  No huge play in the clutch but I suspect its  dead. 
>>> Any
>>> BTDT on the list?
>>>
>>> With the fan blades off I can easily get a big 32" spanner on the 
>>> clutch.
>>> Anyone removed it by holding the pulley with rubber filter strap or
>>> similar?
>>>
>>> Regards
>>> -- 
>>> Peter Golledge
>>>
>>> 95 S6, 89 200TQA, 87 LT-1Q, 1979 930
>>> _______________________________________________
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>>> S-CAR-List at audifans.com
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>>>
>>
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>
>