Stuck right brake

[martin10]

The right brake will randomly get stuck engaged with use of hand brake or P / CP pedal.

Troubleshooting so far...

1. Cleaned brake and piston and put antiseize on pins - stills locks with all;
2. Bypassed Co-Pilot master cylinder - still freezes with either Hand or Pilot brake;
3. Bypassed Pilot master cylinder - could not get it to freeze with hand brake (CP still out of system);
4. Removed Pilot master cylinder, disassembled, and verified it had recently been rebuilt. Everything looked ok. Completely disassembled just in case, cleaned everything, reassembled and reinstalled - brake locked up with CP brake pedal.

Note: Wiggling brake pedals get it to release. Also opening bleed screw releases brake.

Went home for the day....

Could the Hand Brake Master Cylinder cause a stuck brake only on one side? It's not a shuttle valve right?

Anyone experience this?

 

[Tweety]

 

[martin10]

 

[Charley]

 

[Charley]

 

[martin10]

 

[Tweety]

 

[flyguydon]

 

[Tom]

 

[martin10]