In the process of replacing brake hoses, master cyl etc. In trying to bleed rear brakes, no joy. Found that valve thingie full of debris. Is there a source? Or of the internal parts etc? Or should I just bypass it? The other side had a kinked steel line, so I have been braking on the fronts only it seems. Good thing I am a conservative driver!
Rear brake line valve/proportioner
- Thread starter 2002turbo
- Start date
Hi there
I rebuilt mine with parts for a Porsche
I have attached a link to it below
Hopefully it helps
I rebuilt mine with parts for a Porsche
I have attached a link to it below
Hopefully it helps
Rear brake pressure regulating valve Rebuild
Hi guys I just rebuilt my rear brake pressure regulator valve. I used a pmb kit that is meant for an early Porsche. Anyway I took mine off and cleaned it and glass bead blasted it before I took it apart. It was easier to keep the blast media out that way . It is spring loaded so I put it in a...
e9coupe.com
Power Brake Exchange - Rebuilts You Can Rely On Since 1959
Power Brake Exchange specializes in the business of re-manufacturing power brake units. Power Brake Exchange is ready for any future challenges such as, being able to remanufacture Power Steering Components such as Rack and Pinion, Power Steering Pumps, and Gear Boxes.
powerbrakestore.com
Just call him and talk to him.
He does all of mine.
He does all of mine.
You might get lucky, but those tiny bits of brake hose that get into the system as the hoses deteriorate are very difficult to dislodge and remove without opening up the valve.
Moreover, just because your rear brakes work does not mean your proportioning valve is working. It may be stuck to allow fluid to flow, but not to provide pressure relief. This means if ever you have to stop quickly enough to lock up your brakes both your front and rear will lock up, or worse yet your rear brakes may lock up before your front brakes. In either case the car would be much more difficult to control, and you will only learn of this in a panic situation.
I would do the rebuild.
Moreover, just because your rear brakes work does not mean your proportioning valve is working. It may be stuck to allow fluid to flow, but not to provide pressure relief. This means if ever you have to stop quickly enough to lock up your brakes both your front and rear will lock up, or worse yet your rear brakes may lock up before your front brakes. In either case the car would be much more difficult to control, and you will only learn of this in a panic situation.
I would do the rebuild.
Post in thread 'Rear brake pressure regulating valve Rebuild'
https://e9coupe.com/forum/threads/rear-brake-pressure-regulating-valve-rebuild.43122/post-401652
Maybe this is helpful for you?
https://e9coupe.com/forum/threads/rear-brake-pressure-regulating-valve-rebuild.43122/post-401652
Maybe this is helpful for you?
Jay Stratton can rebuild also
tdgray
Well-Known Member
PMB does them also. Sameish part as porsche and VW.
Link:
I think that I bought a seal kit from them several years ago so that I could rebuild mine. It is still on the shelf waiting for the rear-end project.
thanks for the leads guys. we got it cleaned out and put back together and the car no longer pulls to one side. that may be because the rear brake line was pinched on one side, old injury, no idea how that happened. anyway, all the rubber in the braking system is now new
I seem to remember that after reinstalling these things, unless you bleed it by cracking the output(s) that you will never get the system properly bleed and get a firm pedal (unless get lucky). Recollection is the process is a mess. Got to bleed the valve then go on to bleeding the rears. We have a 2800cs so we have rear drums.
Just went through the brake bleeding process last year and I HATE brake fluid.
jjs2800cs
Just went through the brake bleeding process last year and I HATE brake fluid.
jjs2800cs