parking brake mechanism stuck

[Bernie Benz]

I have a pair of rear calipers with SS hoses that I would part with  
for cheap. Offer?

Bernie


On Nov 22, 2008, at 5:34 PM, Kenneth Keith wrote:

> 200q20v'ers,
>
> So I'm working on all kinds of different things on this stone gray  
> 200q20v.
> I'll keep the threads separate.  The parking brake barely engages  
> way at the
> top of the lever travel, so I get underneath thinking I can just  
> tighten the
> adjustment at the Y connection and find that the driver side  
> caliper parking
> brake is stuck in the fully applied position, but there's actually no
> braking going on.  The passenger side seems to not be locked in the  
> fully
> applied position, but I didn't see if it was frozen.
>
> I took the driver side rear caliper from my wrecked pearl 200q20v  
> parts
> stash, which I planned to use with a 280mm rear brake setup on my eS2
> project, but that parking brake seems to be frozen in the non-applied
> position.  I can force it back and forth, mimicking the parking brake
> cable's action with a pair of channel locks, but basically the  
> return spring
> doesn't seem to be able to overcome the mechanical resistance to  
> release it
> on its own.
>
> I looked at some stuff online to see what the rebuild kits were  
> comprised
> of, and it's just seals and boots; nothing really for the parking  
> brake
> section.  I'm wondering how I can resurrect these calipers, parking
> brake-wise, so that they function as intended.  Seeing what's  
> involved in a
> rebuild, I'll end up rebuilding these, but I'm wondering if the  
> parking
> brake mechanism can be freed on these un-rebuilt calipers  
> (particularly the
> one on the car without having to bleed it tonight), or if that can  
> only be
> fixed while doing a full rebuild, then what needs to be done in  
> addition to
> the cleaning and seal/boot change?
>
> Can I just spray Liquid Wrench on the outside and keep working the  
> action,
> or is there something inside I need to do to have functional  
> parking brakes?
>
> Also, for those of you that work on the rear calipers, what tool do  
> you use
> to unscrew the piston and where can I get it.  I just checked
> samstagsales.com, toolsource.com and zelenda.com and didn't see  
> what I see
> in the Bentley.  Everything has pegs, but the piston surface has two
> V-shaped areas rather than peg holes, so it seems like the correct  
> tool
> would have the matching shape.
>
> Cheers,
>
> Kenneth
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