Re: Help, Broken Bleeder Screw

["Don J. Howard" <dhoward@jht.com>]

I do not understand this thread.  No pun intended but the threads of the
bleeder screw are not what "seals" the system, the end of the screw
seals against the recess in the caliper body.  You would have to be a
great machinist to drill out a bleeder screw and helicoil or tap this
hole oversize without destroying the sealing surface.  You certainly
should not try this with hand tools.  If the brakes have received little
attention for 10 years the bleed screw is probably corroded in place. 
Judicious heat application and an easy-out of the proper size should
remove it.  Then rebuild both calipers. 

Cheers, Don J. Howard