Brake Compensator Adjustment

[Kevkeller]

Here is an article posted by a defunct website called Oldtimers regarding the compensator.  They built a device to check and adjust it.  I am in the process of making one also.

When I had my compensator apart there was some corrosion in the bore and it probably does not work correctly.  I think I will bore it out and put a brass sleeve in and readjust it. 

If I get the device built I will check others if anyone wants.

[wwheeler]

You can send it off to be rebuilt, tested and restored. PMB performance. I can't remember the price, but wasn't that much and several have used them on this site. Or you can build a testing fixture you will use once. If you have the time to do so, that can be fun also. Just depends on your situation. 

[Jordan]

Not sure what the cost is to rebuild/restore but you can get them new.  Here is one from Alfa Romeo. I don't know how the cost compares to MB.

https://classicalfa.com/br012-1-oe-brake-pressure-regulator-valve-oe/

[Kevkeller]

I don’t mind trying to fix it but if I screw it up I’ll now know where to find a new one. Thank you.

[Shvegel]

Keep in mind the Alfa unit is tuned for an Alfa.  They are most likely exactly the same unit but with a different setting. You "could" swap the spring and housing with the adjustment screw and retain the adjustment.  I do often wonder if we could eliminate some of the nose dive by using a different adjustment?

[Benz Dr.]

I kind of thought that the brake force regulator only acts on the rear disc brakes. It keeps the rear brakes from locking up in heavy braking situations which is a sure way to end upside down in the Pumpkin patch if they ever do. 

You might be thinking about a brake bias regulator which is a different device.

[Kevkeller]

Maybe I called it the wrong name but it’s what you are talking about, reducing the pressure to the rear brakes.

[Benz Dr.]

No, you had it right. Just wanted you to understand that these are two different devices.

[Kevkeller]

Finished the boring. Came out nice.