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Fife tiger
If I remember correctly (not guaranteed),you have got the first stage right. there is a retaining screw that covers the end of the pin. if you then clean out the grease & gime from the hole you should see that the pin end is slotted, stick a suitably sized screwdriver into this slot & screw the pin out, it has a threaded end.
I am of course as usual open to correction on this matter.
take carefull note odf where all of the bits go before you strip it any further.
Having cleaned up the pistons I would try to move them before re-assembling. Remember to make up a packer to fit in the calliper to esure that the pistons don't pop out when you press the lever. Once you have got them moving inwards (under fluid pressure and only a wee bit 1mm or so) give the pistons another clean with your magic cleaner. Take the top off of you brake reservoir & then press the pistons back into the calliper (make sure its done slowly & that the fluid doesn't overflow at the reservoir. then rebuild the caliper using a copper based brake grease coating all of the sliding surfaces (not the friction faces obviously or the pistons) and the pins & threads. Put a thin smear of the grease between pad & shim & piston end as well to prevent squeel. The haynes book of lies covers this quite well.
Good luck.
D
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Big D
If you can't be kind, at least have the decency to be vague.
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