Brake bleeding problems

the valve has a small round ball like in the center that needs to be raised very little in order to bleed the brakes. i have one on the 72 with disc i have. a tool was made at one time to raise it up. otherwise it will take two to bleed the brake and possibly three.

The combination valve is shifted from having pressure in the front but not in the rear.
Did you bleed the master first? if not, do that first but I assume you did.
Did you have pressure on both ports of the master before bleeding the fronts?
An easy way to get it to shift back (if you can't get the pin to move) is to crack a front line open and just push the pedal down,
then close the line and let up. Repeat as necessary till you hear the valve snap back. You need to create a reverse pressure differential to get the valve to move back to center.

From the TSM - Pull out 22-35 lbs. for a minimum travel of .060".

But what am I pulling?

You can also try to suck fluid through to the rears.
Find a oil mix syringe intended for mixing fuel and oil for a chainsaw. Buy a bit longer piece of plastic tubing to better get access to everything at the rear. remove the bleeder valves and put a wrap or two (no more) of teflon tape on the threads (so threads seal positively) only of the bleeder and reinstall. Attach the hose from the syringe, open the bleeder and suck fluid into the rear wheel cylinder/caliper.

or just buy one of the tools intended for vacuum bleeding


Edited by White70JavelinSST - Aug/22/2016 at 11:58am