[200q20v] 91 Avant rear wiper

[Gary Martin]

Did you replace the whole assembly? Maybe I can replace only the motor. Or
maybe,,,, do I really need a rear wiper? Maybe I'll wait and see what life
is like without it...;-)

Gary
----- Original Message -----
From: "Fundsalo Racing" <fundsaloracing at yahoo.com>
To: "Gary Martin" <motogo1 at home.com>; "Audi 200" <200q20v at audifans.com>
Sent: Wednesday, May 23, 2001 3:25 PM
Subject: Re: [200q20v] 91 Avant rear wiper


> 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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