Hello everyone

i have a 1990 Electra glide with a rear sticking brake , caliper has been rebuilt , master has been rebuilt , braided hose , brand new pads and disc and it still sticks ....please help

 

If the piston in the master cylinder cannot fully retract, it cannot release the line pressure and vent the line to the reservoir. If it doesn't do this, the brakes will drag, the caliper heat up, fluid expands/boils, and the brakes self energize until fade. Make sure your pedal/rod are free to fully return.

 

I just went thru this with my 85. there's a very small hole in the master cylinder where the feed line is coming into the cylinder. it may be plugged up. blow it out with an air compressor. it's so small I couldn't even get a strand of wire thru it.

 

I'd be looking at the other end too... make sure the lever isn't binding. nothing goofy with the rod that the foot lever pushes, etc...

 

Try changing the brake line. A collapsed brake line will hold pressure in the caliper and not let it retract.

 

Thanks foxtrapper , master was rebuilt and pedal has play , I can feel the piston retract

 

Thanks Bagga , When we had the master apart that small hole was clear

 

Thanks Haarley , the line is braided and near new , the one going to reservoir possibly as I haven稚 really looked at that one ?

 

Thanks RedOregon , the pedal is loose but we also took it apart and lubed it , rod linkage is all loose also

 

The reservoir has some breather slots on the lid those are also clean and clear , Jesus I知 starting to hate this bike , I have a custom built hardtail from 2011 never once has it given me any issues !!!