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Re: Rookie move

To: mgs <>, twannen <>
Subject: Re: Rookie move
Date: Thu, 04 Jan 1996 10:00:00 -0800 (PST)
Actually, I believe that the raised edge of the piston is rotated so that it 
contacts the pad with the c shape of the raised edge in the center of the 
pad. If it were rotated then you whould not be applying pressure from the 
piston to the center of the pad which could cause uneven wear or failure. I 
would pop it out and rotate it. I mad this booboo my self on one of them and 
I was able to remove the retaining ring without damage (carefully).
From: mgs-owner
To: mgs; twannen
Subject: Re: Rookie move
Date: Thursday,January 04,1996 9:18AM

>   I have been rebuilding my front brake calipers.  It seems that the
>   brake fluid and brake hoses were factory original in my car and it
> had been sitting about 2 years before I got it.  Having cleaned all the
> junk out of the cylinders ( no pitting fortunately), I have reassembled
> them, replaced the seals and re - installed them only to find that
> there is a small recess on the disc side of each piston and I should
> have oriented these correctly.  The recesses are so shallow that I
> didn't notice them.  Both calipers are back on the car with the pistons
> in random orientation. The manuals I have say "note how the recesses
> are oriented & place back the same way."  Can anyone tell me the
> purpose of these recesses and should I redo the job - if so how are
> they oriented?  Thanks.
> Tom 74 Midget
> Thomas Wannenburg MD.

I am GUESSING here so look to the more knowledgable list members before
taking any action.

I think (I do, sometimes, but not till after I hit the send button)
that the orientaion marks are so the wear surfaces mate up as they were
before disassembly. Otherwise the instructions would tell you how to
orient them rather than to note their orientation before disassembly.

 - -Mark   = =o&o

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