[200q20v] 91 Avant rear wiper

[Fundsalo Racing]

BTDT. Smelly. Used replacement unit was very noisy.
Rats. The undersize Audi wiring is there to protect
those valuable and rare fuses.

-glen

OOOO


--- Gary Martin <motogo1 at home.com> wrote:
> Well, took the wiper assembly out today. The motor
> is fryed, and I mean
> FRYED! Any AVANT owners out there, if your rear
> wiper gets stuck, disconnect
> the power somehow. Pull the electrical connection or
> fuse. I'm not sure why
> this thing got stuck. The wiper gear is not easy to
> disassemble, but doesn't
> appear to be dried out grease syndrome. Anyway,
> after the wiper stuck, on
> the 30 minute drive home, apparently the motor kept
> heating up and melting.
> The fuse never did blow.
> 
> Gary
> 
> ----- Original Message -----
> From: "Peter Schulz" <peschulz at cisco.com>
> To: "Gary Martin" <motogo1 at home.com>
> Cc: "200q20v" <200q20v at audifans.com>
> Sent: Tuesday, May 22, 2001 3:14 PM
> Subject: Re: [200q20v] 91 Avant rear wiper
> 
> 
> > At 03:01 PM 5/22/2001 -0400, you wrote:
> > >Finally got some rain in N.E.  Turn on the rear
> wiper on my 91 200 Avant,
> > >wiper goes half way and stops. Fuse OK. I assume
> the motor went bye-bye.
> > >Smells bad too. Haven't taken it out yet. Any
> experience or BTDT's.  TIA
> > >
> > >Gary
> > >91 200TQA
> > >94UrS4
> > >
> > >_______________________________________________
> > >200q20v mailing list
> > >200q20v at audifans.com
> > >http://www.audifans.com/mailman/listinfo/200q20v
> >
> >
> > Gary:
> >
> > Might be similar issue that the Coupe Quattro
> owners experience....
> >
> > The grease inside the gearbox dries into a hard
> substance.
> >
> > Solution is to dis-assemble the wiper
> motor/gearbox, remove the crud.
> > relube, and re-assemble.
> >
> > see http://20v.org/wiper.htm#rear
> >
> > HTH
> >
> > Peter Schulz
> > 1990 CQ
> > 1991 200 20v TQW
> > Chelmsford, MA USA
> > peschulz at cisco.com
> >
> >
> >
> > Motor:
> > The lubricant/grease inside the motor will congeal
> and harden with age. If
> > the wiper works fine at the end of a hot day,
> that's a clue that you need
> > to relube the motor. The wiper assembly consists
> of a motor,
> > attached to a spiral worm gear that's attached to
> a round toothed gear.
> The
> > round gear drives an arm that moves the wiper
> shaft. On the back side of
> > the round gear are 3 contact traces that rub
> against some
> > electrical "wipers" that come through the wiper
> case to the wire
> > connectors. What the wiper and traces do is
> reverse the motor direction
> > when the end of the track is reached.The
> lube/grease which aids the
> > gear trace/wiper hardens and lifts the electrical
> wiper off of the trace.
> > If you open the case of the wiper (4? screws once
> you remove the inside
> > hatch cover panel), and operate the windshield
> wiper, you may
> > see some arcing and sparking through the gear. It
> is sort of an opaque
> > white. I am not sure if the traces are riding up
> and arcing when the
> > circuit is opening or if the electrical wipers are
> shorting out to the
> case.
> > If you remove the hardened grease and replace with
> fresh stuff, the wiper
> > will work.
> >
> > The key to disassembly is to:
> >
> >     1.Remove Wiper arm
> >     2.Remove little plastic cap
> >     3.Find C-clip on wiper shaft. This holds
> rotating wiper shaft in place
> >     4.Open up wiper "box" (where gears are) by
> removing the inside trim
> > panel on the hatch, then the 4 screws
> >     5.Push shaft thru and remove
> >     6.Shaft removal allows arm removal which
> allows toothed gear removal
> >     7.Remove crappy grease
> >     8.Relube with white lithium grease
> >     9.Reassemble in reverse
> >    10.Enjoy smooth wiper action
> >
> >
> > Peter C. Schulz peschulz at cisco.com
> > Quality Systems Engineer/SSE http://www.cisco.com
> > Customer Contact Business Unit (CCBU) Direct:
> 978.275.7772
> > Cisco Systems, Inc. Fax: 978.275.5299
> > 900 Chelmsford Street Pager: 800.365.4578
> > Lowell, MA 01851 USA
> >
> >
> >
> 
> _______________________________________________
> 200q20v mailing list
> 200q20v at audifans.com
> http://www.audifans.com/mailman/listinfo/200q20v


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