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Old 03-20-2014, 07:39 PM   #10
BugzC10
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Join Date: Oct 2012
Location: Rose Hill Kansas
Posts: 1,351
Re: Who's master cylinder and booster?

Quote:
Originally Posted by RichardJ View Post
This is what I see in your first picture. It is a pressure differential switch. A switch and nothing more. It is not a proportioning valve and it is not a brass combination valve that you are showing in your last post.
If you have a proportion valve, it may be somewhere in the line to the rear brakes.
So IF it is as you say, what would the affect be when applying the brakes? My rear brakes don't lock up, nor do the front when mashing the brake peddle.
Note: I replaced the solid brake line that goes along the frame next to the engine back to the rear axle...no proportion valve found. I have not seen another inline valve. Are you saying that I'm getting equal pressure to the front and the rear brakes?
Sounds like when the previous owner installed the power brake booster and front disk setup he left the drum brake "differential" switch intact and neglected to install a disc/drum P valve.
I would put in a new Disc/Drum valve, but I'm considering converting the rear to disc and don't want to buy the valve twice. What P valve would you recomend for Disc/drum?
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Last edited by BugzC10; 03-21-2014 at 07:54 AM.
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