High-G FJR Junkie!
Join Date: Mar 2015
Location: Rolling Prairie, Ind
Let me ask,if when the rear brake locks up and you open the bleed screw is there pressure ? If so then iris probably the spooge hole in the master cylinder or the brake pedal is sticking. if no pressure then it is likely the piston in the caliper hanging up, usually corrosion in the seal groove that push’s the seal out against the piston or the piston itself is corroded and hanging up on the seal.
Also when you ”grease” the brake pedal you are removing the plate that the pedal shaft goes through and cleaning and lubing the shaft there right ? Not just putting lube on the splines ?
I would bet on a closed spooge hole hole myself as they are usually only .010-.013in and can be quite difficult to access and clear, I am just finishing a 76 wing that had plugged spooge holes on both the front & rear m/c’s as well as stuck pistons as well. This is one of the typical by-products of when a brake system doesn’t get bled regularly. I use a set of small “number” drills and a pin vise to clear the hole. Some use a piece of wire. Hope this helps.
Red 2014A, the fastest color !
Ride more,, worry less !
Last edited by passx; 05-26-2020 at 08:04 AM.