86 5KTQW parking Brake Seizing

[james accordino]

Funny.  I just posted last week how my rear caliper
rebuild was doing so well with no maintanence/checks.
Since it has hung up.  Only in wet weather.  Only on
inital release, especially if inintally reversing.  As
soon as I drive forward all is well.  The piston is
NOT sticking.  Hubs and rotors remain cool after
driving.  It might be surface rust on the rotors from
all the moisture, but the moisture was also there for
the first 50k after rebuild.  The cables are both new
OEM last Nov. so I can probably rule them out.  It
might be the infamous "cam" needing lube.  I'm maybe
leaning toward the intenal portion as I haven't
flushed the rears in the 50k/2yr. interval.  Maybe all
crudded up again.  Or maybe my rubber? (what compound
is that common o-ring? Buna-N?) o-rings have finally
failed?  I'll check.  Maybe this weekend.  I'll let
y'all know what I find.

Jim Accordino

--- Steve Sherman <spsherm at attglobal.net> wrote:
> The rear left caliper started freezing on (eg not
> releasing) with the
> recent batch of cold snowy weather.
>
> I've looked thru the archives, and it seem that the
> "right" way to fix
> this would be to replace the parking brake cables,
> calipers and pads.
> Not unreasonable, and something I will consider when
> better weather
> rolls around.  But I am curious if there are any
> temporary fixes (short
> of just not using the parking brake) that folks have
> found to work.
>
> It seems to me that this is likely a cable thing, as
> the side which
> hangs up, has it's rubber/plastic coat on the
> parking brake cable mostly
> gone.  I was thinking that perhaps an overnite stay
> in the garage with
> heat applied to the cable might dry it out .  Then
> some WD40 and a new
> wrap of electrical tape with sealant on the ends.
> Anyone btdt with
> something like this?
>
> TIA
>


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