Jim: I recently helped a friend who was having major issues with his MGC
brakes and after weeks of total rebuilds of all components the problem was
traced to the proportioning valve that maintains balence between front and
rear brakes. The bar inside the valve had positioned itself to one side of
the valve and would not move thus not allowing half the brakes to be bled or
operate. We ended up using a spare MGB valve that I had and it solved the
problem. It appears to be a unique and rare problem.
Frank Krajewski
----- Original Message -----
From: "James Schulte" <schultejim@msn.com>
To: <Mgs@autox.team.net>
Sent: Tuesday, December 04, 2007 9:07 AM
Subject: [Mgs] brakes
> I've always had success bleeding brakes even on my MGC. But, my 70 B is
> really giving me a tussle. I have braided lines in the front and a simple
> rubber line in the back. I've always used a peddle pusher whom would press
> on my command after I would open the screw then I would close it and have
> them release the peddle. It's always worked on the second or third bleed
> after a test drive. But this time it just doesn't want to cooperate. I've
> replaced the MC with a new one from Moss. Has anyone had issues with them?
> Any blow by in the cylinder. Problem is, I don't see any leak, so how do I
> know?
> I'm not seeing any leaks anywhere and the air bubbles in the lines go away
> with several pumps and releases. Only to come back after a test drive and
> a
> soft peddle upon braking on the road.
> If it is a bad hose, how do I tell? Have the pusher depress with the screw
> closed? Will the rubber actually bulge? Would this cause air to get in the
> line if no leaks are apparent?
> I have bled this system 5 times already with no success. I get a firm
> peddle
> after closing the screw and then go for a test drive and it goes back to
> being soft. Help!
>
>
>
> Jim Schulte
> Aquatic Coordinator Souderton S.D.
> Co-Secretary Philadelphia MG Club
> Co-Coordinator MG 2008
> Eastern HS WP Officials Scheduler
> _______________________________________________
_______________________________________________
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