

| Subject: | siezing brakes (was: '68 front-end into '59 Bus? Disc brakes?) |
| From: | Maher, Steve (SD-MS) |
| Date: | Mon, 13 May 1996 08:44:00 -0700 (PDT) |
>The discs will go straight onto the '68 beam as well. Although you
>should really change the master cylinder for the one with the pressure
>release (Jim (BB) might be able to advise.). Any conversion from drums
>to discs requires the corresponding master cylinder. This is because
>the hydraulic system for discs means that the pads are in, almost,
>constant contact with the discs. In town driving the hydraulic fluid
>can expand, and without compensation for this expansion, the system
>can become pressurised into locking the pads on and you get to a
>seized state.
>
>The point is whilst I know a lot of people that have done the disc
>swap thing, none of them have experienced the seizing problem but I
>have heard about it several times on beetles.
I have run into this several times, on '66-older beetles. Never seen
it on a bus, although maybe that's because I'd finally gotten it through
my head that I shouldn't adjust the shoes right up next to the drums, and
so never caused the problem any more by the time I got into buses.
Is this why it happens on older beetles, but (apparently) not on '67-newer
ones? Do newer beetles have such a pressure-relief doohickey? Where- in
the master cylinder? From your post, I guess buses had the same problem,
and solution? In what year did the pressure-relief start, for buses and/or
bugs?
______________________________________________________________________
_ ______________
______//________ Steve Maher smaher@gi.com //__][__||____\\
/o _ | -| _ \ San Diego, CA 75461,1717 (o _-| _ o|
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'66 Mustang Coupevertible '89 Son Sherwin '80 VW V6anagon
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