pistons not moving

[cammy mack]

right
just changed the pads on the rear calliper, been trying to bleed them for the last hour but the pistons aren't moving. ive had them out, cleaned and oiled them up with brake fluid but no joy
bike is an mzrt 125

mucho maracas

robert

[Kickstart]

Hi

Where is the bleed nipple on the caliper? Air rises to the top and most bikes are sensible and have the bleed nipple at the highest point but not all.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[cammy mack]

hi keith

its on the top mate. i dont understand it at all. i only took the pistons out to give the calliper a clean as it wasnt releasing

[Timmeh]

You put the seals back in the right way round?
____________________
GSXR400 x2 | '94 RVF400 | '93 TZR125 4DL (again)
20:22:30 BLUEX5: i would love to be forced to undergo a**l plugging with different sizes
20:48:18 Temeluchus: comp you hunk of smouldering homos3x you

[cammy mack]

yes mate
is it ok to re use the copper washers on the banjo bolt or do i need to heat them up before re fitting them. only asking as my mate said that you have to heat them with a blow torch????

[Timmeh]

Copper washers can be reanealed by heating up until they start to glow then quenching in a bucket of water.


____________________
GSXR400 x2 | '94 RVF400 | '93 TZR125 4DL (again)
20:22:30 BLUEX5: i would love to be forced to undergo a**l plugging with different sizes
20:48:18 Temeluchus: comp you hunk of smouldering homos3x you

[cammy mack]

hi tim

done that today with camping stove . bottom line is that i need new piston seals which i ordered last tuesday just in case
still not here though

[prawny1]

Not a good idea to quench the washers that will just case harden them and make them brittle, its best to let them cool naturaly.

[cammy mack]

never quenched them mate. i let them cool then rub them down with some fine emery paper