loewent via CarKB.com wrote:
> " also, if you haven't changed the brake fluid in a while, be prepared
> for the master cylinder to start leaking once the new fluid shrinks the
> seals."
>
> Why would new fluid cause that?

my experience is, even with a pressure bleeder that avoids pumping the
master cylinder, master cylinder seals can fail a few weeks after fluid
change if the fluid was previously neglected for a long time.
disassembly shows those seals to be soft and sticky where the rubber has
deteriorated. i think that when coming into contact with new fluid,
which contains rubber conditioners, old previously contaminated seals
just can't cope with their new chemical environment.

> Should I be looking for a new master
> cylinder?

wait and see. you may be fine. i just mentioned it because it can be
frustrating to do major work on one end of the system only to find the
other end needs doing a few weeks later.

> Or will this correct itself?

time will tell!

>
> t
>
>
> jim beam wrote:
>>> Hi there,
>>>
>> [quoted text clipped - 7 lines]
>>> My question: would a caliper rebuild resolve this issue?
>> yes.
>>
>>> Can you get a
>>> rebuild kit for these?
>> sure - everything is all available online.
>>
>>> I imagine I need new caliper pins and sleeves.
>> not necessarily. more likely it's the piston locking up in the cylinder.
>>
>>> Any other ideas out there?
>> for this location, consider just replacing the caliper. if you have bad
>> rust, a rebuild may be of limited value. should do both sides at once.
>> also, if you haven't changed the brake fluid in a while, be prepared
>> for the master cylinder to start leaking once the new fluid shrinks the
>> seals.
>>
>>> Thanks
>>> Terry in Winterpeg.
>