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Re: Rear disk brake conversion ? proportioning val (archive)
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Posted by Arne on October 19, 2000 at 17:54:36:

In Reply to: Rear disk brake conversion ? proportioning valve? posted by MikeM on October 19, 2000 at 13:45:58:


Sorry for the double post

I am going to put the rear trailing arms from the 323i on a US '83 320is with the 325i rear calipers. I am wondering about the box that I believe is the rear proportioning valve. It is located below the master cylinder in the engine compartment. Is this unit removed when converting to rear disks? Do the 323i's have a rear proportioning valve? Is the 323i valve different with rear disks? Can anyone help with answers?


Mike Matison

Mike, I looked under the hood of my 323i ('81) and found that there is a little valve of some sort there. Then I fired up my Mobile Tradition CD and found the part in question. BMW calls it a pressure regulator and the drum brake cars use the same part number. I'd say you should leave it hooked up.

Arne
1981 323i




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