Re: Why do I keep destroying O-rings?

["Peter Plangger" <pepe@z.zgs.de>]

>When I rebuilt my calipers a couple of years back, my supplier gave
me the
>choice of two repair kits - 'early' calipers and 'later' calipers -
but
>couldn't identify which would fit my car. I took both on the
understanding
>that I could return the kit that didn't fit. The main seals in the
kits were
>slightly different sizes, I used the 'early' kit because the seals in
the
>'later' kit were too big.


There has been a change in the piston diameter for the rear calipers
on the 90. Mine is a '91 model. The piston diameter is 38 mm, the
years before had 36 mm.
The 38mm calipers have the number 38 on them.

Peter


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