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Old 04-12-2015, 12:07 PM   #3
MagmaJct
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Join Date: May 2008
Location: Mesa, AZ
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Re: Proportionate valve or distribution valve

Quote:
Originally Posted by Stocker View Post
Not a stupid question at all. That's a distribution block for drums/drums. When you convert to front discs, you'll want to change it out to a proportioning valve. I believe you should also change the MC but let's see what others have to say. MC for front discs uses a larger reservoir for the discs and a smaller reservoir for the rear drums.

If you want to get picky, the front discs, which operate at higher line pressure (the reason for the prop. valve) use 3/16" lines, and the rear drums retain 1/4" lines.
What about in '71? Just rebuilt my MC a few months ago, both front and rear reservoirs are the same size. I supposed an accurate question would be: "Did this change occur the same time they went to discs?"

Regards,
Mike
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