Hanging rear caliper Bernie says:

[Ingo Rautenberg]

OK.  I have to agree with Bernie here.  There is no sideways force that
could cause the piston to be cockeyed.  Rather, a more likely scenario (and
the only plausible explanation) is this:  The piston is extended far enough
that when the caliper is removed, the piston hangs up on the pad (more
likely the spring clip) and once removed, has become cockeyed.

Ingo

----- Original Message ----- 
From: "Bernie Benz" <b.benz at charter.net>
To: <SuffolkD at aol.com>
Cc: "200q20V mailing list" <200q20v at audifans.com>
Sent: Monday, April 18, 2005 12:01 AM
Subject: Re: Hanging rear caliper Bernie says:


>
>
>
> From: SuffolkD at aol.com
>
> snip.
>
> Similarly, the piston when extended far out at near full travel will
droop,
> or cock out of alignment.  Seen that one.
> Seen that one maybe, Scott, but IMO likely a wrong conclusion on your
part.
> The piston is not guided by the caliper bore at all, it is only suspended
by
> the bore O-ring seal and its face contact with the pad backing plate
> surface.  Therefore, the piston could only cock if the pad were to wear
out
> of parallel with the backing plate surface to a high degree, i.e. a highly
> tapered pad.  A most unlikely and self correcting condition, one
sufficient
> to cause piston contact and jamming within the caliper bore.  More likely,
> just a sludged up hydraulic system.  Fix it, it ain't broke!
>
> Bernie
>
>
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