montjuic brembo brake rebuild

[sjeffers]

hi

can anyone confirm the brembo dual pot model for a 1980 montjuic? I think they may be a PO5 model but not sure.
Any tips on how to remove the totally seized pistons from the callipers? The bike has been sitting over 25 years so brake subsystem is totally gummed up. Would an ultrasonic cleaner possibly work on the various components or recommend an alternative method?
thanks
stephen

 

[sfcpiet]

Yep, P05.

Easiest method of removal is to press the pistons out with grease. Fit a grease nipple or modify the bleed nipple to accept a grease gun, effective but messy. As soon as one piston starts moving, hold it back with a g-clamp or similar to get the other going. Replace the original steel pistons with later type anodized alloy items.

piet

 

[sjeffers]

thanks piet