Rear disc brakes

An absurdity that should be banned. Mine's just seized *again*. The THIRD
time this year.

Any tips on home calliper rebuilding - i.e. is it worth doing at home?

Neil

 

It is worth doing at home, if you know how. If you don't know how, you
may knacker it. One tip, don't use copper grease on any of the pins, use
corrosion block grease instead[1]. It won't cause the alloy to corrode,
coz it ain't got copper in it.

[1]Like this...
http://www.worldwideaviation.co.uk/CorrosionBlockGrease/cbgmain.htm

 

Cheers, I think I might just get some of that gunge and have a go myself. By
the looks of it my garage is using copper grease, which might explain this..

Neil

 

It seems as though most everyone uses copper grease on alloy brake pins
/ bolts for some reason. I used to.

 

I did a set a couple of years ago on my old ZZR1100. Completely
disassembled, cleaned, greased and rebuilt. Worked lovely until the bike
blew up.

Getting the pistons out without scratching them is the awkward bit. The
trick is to remove the pads and then pump the pistons out as far as you can
before you disconnect them from the hoses.

If you scratch the pistons, they'll leak and may roger your braking
performance.

Use grease sparingly or it will just attract the shit.
--
The Judge.
ZZR1200 (Fast for a bike. Slow for a teleporter)
K1200RS (New, rotting, useless sack of shit. For sale)
Gone: VL1500LC, ZZR1100, GS1000G, GSX250
Orh+ BOTAFOT#61

 

Is Moly grease OK as an alternative, 'cos I have a big tub of it in the
garage.

 

*ding*, that's ok, but washes out easier than this stuff I use now.

 

Bear says...

This is because you never notice anything going wrong until it breaks.
I claim on your behalf the chain adjuster bolts on the 9R, the brake
pads delaminating on the R1 and the gear change detent spring breaking
on the R1.

 

I felt the same with drums. Since my first disc with the Z, it's been a pain
in the neck. I have a feeling I'm being too liberal with the jetwash or
something, 'cos 3 times in one year is just fucked up.

Can anyone elaborate on the "JETWASHES ARE BAD" theme?

Neil

 

Yep, I can vouch for that. The bearings die very rusty indeed, at least
all my suspension bearings did, and the hub carrier bearing. Thanks goes
to the dealer that jet washed my bike every service, I did ask them not
to....

 

Beav wrote:

I hope the dimwit used it to clean his teeth.