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69' Mercury Monterey Proportioning valve

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I was recently checking out my brake system because the rear seemed to not be pulling it's weight. As I was bleeding the rear drums I noticed no fluid at all was reaching them. I went farther in to the main line going the the rear and no fluid presen there as well. Did Ford use the same valve throughout all it's systems? I can't seem to find a Mercury specific valve, because I'd like to rebuild it.

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I m currently rebuilding a combination valve from a 70 Marauder. I think 69 is different.

 

I would look around on West Coast Classic Cougar, and find a setup that looks like yours and order parts for it. You probably have a separate metering block from the proportioning valve. The proportioning valve may be back further on the car somewhere.

 

https://secure.cougarpartscatalog.com/propvlvkit.htm

 

That is for a metering block and prop valve that looks like this one:

 

https://secure.cougarpartscatalog.com/c8zz-2b257-assembly.html

 

Rebuild video:

 

 

Edit: Oops, they look to be out of stock of 69. They had them last week. Try here:

 

Prop valve kit: http://www.deadnutson.com/catalog/item/2965331/9981991.htm

Metering block kit: http://www.deadnutson.com/catalog/item/2965331/10061180.htm

(apparently sold separately at this outlet)

 

Or here:

 

http://www.mustangsunlimited.com/Mustang/Brakes/Proportioning-Valves/Distribution-Proportioning-Valve-Rebuild-Kit-1968-1969-Mustang-Disc-Brake.axd

 

 

Or here, this may be the actual source:

 

https://www.musclecarresearch.com/valve-kit-wagner
 

And a rebuild article:

 

https://www.musclecarresearch.com/valve-rebuild-wagner

 

Try to match part numbers on the valves if you can. If the numbers dont match, but it is an exact match visually, the seals will probably fit. Any calibration differences would have to be springs.

 

If it is not an exact match visually to the stuff I listed, look around on those sites. There are some other valves Ford used during that period.

 

Good luck!

 

Edited by Bloo (see edit history)

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I'm guessing this is the metering block? It's right next to the valve. Also here's an image of my valve. It's ridiculously tight around that area.

20180110_125406.jpg

20180110_125515.jpg

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Proportioning valve or simple differential pressure switch to light the dash light when there is a hydraulic leak in one of the circuits? Are the front brakes disc or drum?

 

And first, did you test to see if brake fluid was exiting the section of the master cylinder that feeds the rear brakes? I ask because I have seen the master cylinder fail (dirt clogging the port in the reservoir) to supply fluid to one of the circuits. I have not seen the "valve" fail to pass fluid, but of course DOT 3 corrosion can happen any where in the system.;)

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Your Proportioning valve (the smaller one) looks to be a Kelsey Hayes more or less like this one:

 

https://www.ebay.com/itm/68-69-MUSTANG-COUGAR-BOSS-NOS-FORD-C7AZ-2B091-A-DATED-MAY-68-NICE-/321745123162

 

and so probably takes this kit:

 

https://www.musclecarresearch.com/2B091-Kit-2

 

The bigger part with the electrical switch (that I was calling a metering block) Frank is calling a differential pressure switch. Frank is correct, by the way. This is my best guess for a kit, but I cant positively identify from those pictures.

 

https://www.musclecarresearch.com/valve-kit-wagner-dist

 

You are at the point where you really need to get the part numbers and then dig around on the musclecarresearch site until you find matches. You may need to remove the parts to see the numbers. Be sure to crack all the lines loose before unbolting anything. If you dont already have some, now would be a good time to go buy a set of HIGH QUALITY tubing wrenches.

 

Good luck :)

 

 

 

 

Edited by Bloo (see edit history)

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