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removing caliper pistons

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mickwinf:
I cant remember who suggested this method but just tried on two old seized calipers and worked a treat. Basically you screw a grease gun end into the thread where the hydraulic pipe fits, only needs a thread or two so even if the threads are different it will still work. Make sure the bleed nipple is tight then pump away until the piston pops out! Comes out quite gently so not dangerous, i now have two calipers that can be re used.

Bryanj:
Me, messy to clean but worth it, dont forget to use a pick on the groove especialy corners.

Tomb:
It is a good method.

But why remove the piston pump that comes with the brake - the master cylinder, to fit a different piston pump - a grease gun? I use the master cylinder to pump out the piston.

Bryanj:
I did cos i had a job lot of used ones and the bikes i had from US had totalled flexibles along with no fluid.

It human nature (at least male anyway) toblast in with the tool before reading instructions oŕ thinking about what might happen later

McCabe-Thiele (Ted):
In the past I've used an old Mini Master Cylinder with a flexi hose connector as a tool to pop them out - I haven't used my tool for about ten years so it went in the bin during a garage clear out!

Likewise I gave away my old Technicians Bore Gauge & a set of three micrometres as they were all imperial as was the dial gauge they went to a good home that's my only consolation.

All this decluttering was done in the sure fire knowledge that my days of tinkering / mechanic were long gone.............sigh how wrong I was!

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