Brake Master Cylinder Bleeding

[JEFFTATE]

Ok , I figured it out !!!!!
The hold - off / metering / pressure regulator valve was the culprit.

Here's what was happening.
When I bench bled the master , it was ok.
No air was in it at all.
When I installed it on the car and began to bleed the system , the rear brakes bled fine.
All the air came out of the rear lines perfectly.
BUT , when I moved to the front lines , and began to bleed them, I got fluid out of the lines for the first couple of pumps and then air,air,air !!
It would not stop.
On the down stroke , fluid was being pushed into the catch bottle.
Then , when I closed the bleeder and let the pedal up , air was being sucked back into the front line through that valve !!!
That's why I kept getting air in the front lines.
And no air in the back lines.
I simply removed the un-needed valve and made a hard line to connect the master cylinder to the distribution block.
Then , the front brakes bled in a matter of minutes.

JUST LIKE DAVID POZZI ADVISED !!!!



Thanks David !!