Mazzini113
XS400 Member
I'm in the process of bringing a Seca back from the dead, the engine is running great, minus a clutch cable stretched to death. However I'm having some problems with the front brake, and was wondering if anyone can give some advice. This piston cup is stuck, I bleed the brakes and pumped it out most of the way and still it's not wanting to break free. My concern is weather or not this caliper is lost cause, don't want to play with the devil on safety here. Does anyone know something I can do to pop that cup out without damaging the caliper housing? Pumping it out revealed fresh unrusted/pitted metal on the cup, so I do not believe there is any rust inside of the housing, but I would like to do a full inspection, I have read up, and seen a couple diffrent forms where people have used compressed air to pop the cup out? Has anyone had success with this in the past? For those of you that have rebuilt an XS400RJ caliper, how far did the cup pop out before coming all the way out? Was it almost to the brake bad retention bars facing the hub?