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

[Robert Rossato]

Thanks Fred.  From what I hear the wiper arms are not that expensive, so
I'll just go ahead and order one.  I've got to get a few other dealer
items anyway.  FWIW, I have the factory wiper blade with the airfoil.
It sounds like I may have a combination of a bent arm and weak springs,
as I can't imagine the springs are that weak that the blade would
actually LIFT at the end of the sweep with the car not moving so there
must be some other force on it.  Is the section between the spline and
the hinge supposed to be straight?  Mine definitely is not.

Bob

> -----Original Message-----
> From: s-car-list-bounces at audifans.com 
> [mailto:s-car-list-bounces at audifans.com] On Behalf Of Fred Munro
> Sent: Thursday, December 20, 2007 2:48 PM
> To: Robert Rossato; 'S-Car-List at Audifans.Com'
> Subject: Re: [s-cars] [NPC] Lifting Driver's Side Wiper
> 
> 
> 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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