[s-cars] Viscous fan clutch failure?

Fri May 11 22:37:15 EDT 2007

No Scirocco's came with the VR6. The 94 Corrado SLC was the first VW Coupe
to
come with the VR6.

LL - NY

On 5/11/07, chris chambers <fastscirocco_2000 at yahoo.com> wrote:
>
> I'm assuming you mean Scirocco...which begs the question:
>
> What year Scirocco came with a VR6?
>
> Or did you mean Corrado? :-)
>
>
> --- Mark Strangways <StrangConst at rogers.com> wrote:
>
> > It's be said that the fan from a VR6 Sirocco is the one to use.
> > Like I said earlier, I will scoop what's left of the dual set-up on
> > the V10.
> >
> >
> > ----- Original Message -----
> > From: "Theodore Chen" <tedebearp at yahoo.com>
> > To: "Mark Strangways" <StrangConst at rogers.com>; <josh at spiny.com>;
> > <S-CAR-List at audifans.com>; <djdawson2 at aol.com>
> > Sent: Friday, May 11, 2007 8:37 PM
> > Subject: Re: [s-cars] Viscous fan clutch failure?
> >
> >
> > > yes, there's some parasitic drag from the mechanical fan.  the
> > advantage
> > > of the electric fan is that it operates on-demand, and when the car
> > is
> > > moving, it will likely not be running because there will be enough
> > airflow
> > > through the radiator.
> > >
> > > replacing the mechanical fan with an electric fan is probably worth
> > a
> > > few hp - if the electric fan isn't running.
> > >
> > > i replaced the mechanical fan on my mustang with an electric fan,
> > but
> > > primarily for reliability reasons.  the mechanical fan was driven
> > off
> > > the water pump on my 5.0, and in heavy track use, that tends to
> > kill
> > > water pump bearings because of all the weight hanging out there.
> > > that's not an issue with our cars, so i would be inclined to keep
> > > the current mechanical fan setup unless you're having trouble
> > finding
> > > a replacement viscous clutch.
> > >
> > > if you do decide to install an electric fan, make sure you use an
> > OEM
> > > fan.  i would not trust the aftermarket electric fans.  they aren't
> > > built to last.  the construction is cheaper - thinner wires, low
> > quality
> > > bearings.  i'd rather go to the junkyard and look for a fan from a
> > > FWD car with a V6 or V8.  they tend to be very crowded in the
> > engine
> > > compartment, requiring a thinner fan with more power to keep them
> > cool.
> > >
> > > -teddy
> > >
> > > --- Mark Strangways <StrangConst at rogers.com> wrote:
> > >
> > >> Not really a free ride. It does steal HP
> > >> Maybe like you said an electric clutch that would dump it under
> > high rpm
> > >> /
> > >> high load usage.
> > >> After all who needs a fan at 150 MPH
> > >>
> > >> Mark
> > >> ----- Original Message -----
> > >> From: <djdawson2 at aol.com>
> > >> To: <StrangConst at rogers.com>; <josh at spiny.com>;
> > <S-CAR-List at audifans.com>
> > >> Sent: Friday, May 11, 2007 7:24 PM
> > >> Subject: Re: [s-cars] Viscous fan clutch failure?
> > >>
> > >>
> > >> >I don't think there's anything "wrong" with electric fans... it's
> > just
> > >> >that
> > >> >they tend to use rather high current motors.  That mean relays
> > and
> > >> >switches... and increased alternator load.  An engine driven fan
> > is
> > >> >essentially a "free ride" so it makes more sense to me... when
> > it's an
> > >> >option.  Some engine compartments just don't have the space.
> > >> >
> > >> > Dave
> > >> >
> > >> >
> > >> > -----Original Message-----
> > >> > From: StrangConst at rogers.com
> > >> > To: josh at spiny.com; S-CAR-List at audifans.com; djdawson2 at aol.com
> > >> > Sent: Fri, 11 May 2007 5:21 PM
> > >> > Subject: Re: [s-cars] Viscous fan clutch failure?
> > >> >
> > >> >
> > >> > What's wrong with electric fans.
> > >> > I guess other than the weight of the motor.
> > >> >
> > >> > I just saw Audi Canada's wrecked (at Mosport) 2007 S8 V10 (5.2
> > l) it
> > >> > has
> > >> > one electric fan left...
> > >> > Gonna see how it will fit.
> > >> > Anyone want an S8 interior, or motor ? What is left of the car
> > is all
> > >> > for
> > >> > sale
> > >> >
> > >> > Mark
> > >> > ----- Original Message -----
> > >> > From: djdawson2 at aol.com
> > >> > To: josh at spiny.com ; StrangConst at rogers.com ;
> > S-CAR-List at audifans.com
> > >> > Sent: Friday, May 11, 2007 7:06 PM
> > >> > Subject: Re: [s-cars] Viscous fan clutch failure?
> > >> >
> > >> >
> > >> > Still yet, the best solution is the fan clutch that is activated
> > much
> > >> > like
> > >> > the A/C clutch.  No engagement at all when not required, and
> > then full
> > >> > engagement when needed.
> > >> >
> > >> > Haven't seen that on cars yet.
> > >> >
> > >> >
> > >> > -----Original Message-----
> > >> > From: josh at spiny.com
> > >> > To: StrangConst at rogers.com; S-CAR-List at audifans.com
> > >> > Sent: Fri, 11 May 2007 4:33 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
> > >> >>> http://www.audifans.com/mailman/listinfo/s-car-list
> > >> >>>
> > >> >>
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> >
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