[Roadsters] Brake Calipers

[Pat Horne]

Peter,

The piston is held in from the back by a pin. The easiest way I've found 
to get it out is to use air pressure sparingly to blow the piston out.

 First, you wull need to use plenty of shop rags to catch the piston 
when it comes out to make sure it is not damaged. Then block one of the 
hydraulic line fittings and apply low pressure to the other port. Start 
low and go up a bit at a time until the piston comes free.

Be careful not to bend the pin. If it has been a long time since the 
calipers have been gone through, sat for a long time, or the brake fluid 
not changed every couple years, you will probably find the cylinders are 
pitted beyond use (hence the crud inside the boot). If this is the case 
you have 2 options, replace the cylinders or have them sleeved. This has 
been discussed many times on this list and will be in the archives.

Peace,
Pat

Thusly spake peter harrison, On 12/20/2009 12:42 PM:
> Cleaning up calipers - took off the clip holding the rubber boot - lots of
> dirt and stuff inside - is there anyway of removing the caliper piston so that
> I can give the whole thing a good cleaning - and are there any things to watch
> out for?
>
>
>
> Thx
>
>
>
> Peter (Eliza - TOAD SAN)
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-- 
Pat Horne, Owner, Horne Systems 
(512) 797-7501 Voice		5026 FM 2001
Pat at HorneSystemsTx.com	Lockhart, TX 78644-4443
www.hornesystemstx.com
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