[s-cars] [NPC] Lifting Driver's Side Wiper

[Fred Munro]

Bob;

Yup, had this problem on the UrS4 and the UrS6. I got really creative with
the UrS4 and installed an arm wing off a Type 44 with moderate success.
With the UrS6 I just bought a new arm. Problem solved. The springs weaken
over time and the section of arm between the splined hole and the hinge can
get bent.
The stock drivers side wiper blade for the UrS cars has an integrated wing,
so I suspect downforce on the arm may be a bit lacking. I remove the
winged-wonder stock blades in the winter and use one piece low profile
Michelin blades to avoid blade lift.

HTH

Fred Munro
'97 S6


-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com]On Behalf Of Robert Rossato
Sent: December 20, 2007 12:01 PM
To: 'S-Car-List at Audifans.Com'
Subject: [s-cars] [NPC] Lifting Driver's Side Wiper


First of all, my sincerest apologies for this posting being NPC (No
Porsche Content), and in fact, being completely devoid of any BMW,
Infinity, Subie, or even Audi A4 content.  But at least it is somewhat
generalized as it also applies to the 100/A6 so hopefully you'll forgive
my transgression.

My issue is with the driver's side wiper blade.  Lately I haven't been
getting good coverage at the end of the wiper arm travel.  Only the
center portion of the blade would contact the windshield.  At first I
thought it was just the blade linkages being frozen, but that they are
free and clear.

I started watching the blade and noticed that during the last couple
inches of sweep, the ends of the blade lift up noticeably off the glass
and the whole blade is curved with only the center contacting the glass.
So, the arm itself is lifting the blade off the windshield at the very
end of travel.

I checked the mounting of the arm to the spline thinking it might be
loose. It is on good and tight, which means that either the arm is bent,
the springs are really weak, or somehow, the drive linkage is bent.

The arm does have an upward bend to it between the pivot point and the
hinge, which I think is normal but can't recall.  And given that it is
pot metal I would expect to see cracks in the casting if it was bent,
which I don't.

Anyone experience this before?  Before I go and buy a new wiper arm has
anyone had any luck in putting on a stronger spring?

BR

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