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Author Topic: New brake proportioning valve?  (Read 1604 times)

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Offline pintoguy76

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New brake proportioning valve?
« on: December 14, 2015, 09:21:37 AM »
I cant seem to get the brakes right on my pinto (74 Wagon). Ive replaced the master cylinder and the wheel cylinders and the front and rear hoses, and bled and bled and bled and bled the system and I simply cant get the brakes right. It always requires one pump before the pedal is full and firm. Ive read the proportioning valve could be the problem, and it is not available new that I can find. I was wondering if maybe I could use a fox mustang valve or something from a similar sized car with front disc and rear drum brakes. Am also thinking about a NEW (not reman) Ranger master cylinder... (Maybe a ranger proportioning valve will work?) A pinto MC isnt available new, and i kinda feel like a 40 year old master cylinder probably wont work right even after its been rebuilt... so I want a new modern style MC from a ranger and some kind of NEW proportioning valve.


Any ideas ??




1974 Ford Pinto Wagon with 1991 Mustang DIS EFI 2.3 and stock Pinto 4 Speed
 
1996 Chevy C2500 Suburban with 6.5L Turbo Diesel/4L80E 4x2

1980 Volvo 265 with 1997 S-10 4.3 and a modified 700R4

2010 GMC Sierra SLE 1500 4x2 5.3 6L80E

Offline russosborne

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Re: New brake proportioning valve?
« Reply #1 on: December 14, 2015, 06:27:33 PM »
Did you bench bleed the master cylinder before installing it?

Are you wanting to stick with a stock valve, or would you be willing to use an aftermarket one? Not sure of any stock ones new, but all sorts of aftermarket ones, but you would likely need to re-plumb a bit.

Russ
In Glendale, Arizona

RIP Casey, Mallory, Abby, and Sadie. We miss you.

79 Pinto ESS fully caged fun car. In progress. 8inch 4.10 gears. 351C and a T5 waiting to go in.
74 Pinto Wagon.  To be or Not to be a Pinchero, that is the question.

Offline pintoguy76

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Re: New brake proportioning valve?
« Reply #2 on: December 15, 2015, 06:41:32 AM »
Yep. I tried to bench bleed it 2 or 3 times... Aftermarket would be fine with me.... but I'm worried about getting it set properly....af termarket would most likely have to be adustable... because one setting wouldnt work for all cars....
1974 Ford Pinto Wagon with 1991 Mustang DIS EFI 2.3 and stock Pinto 4 Speed
 
1996 Chevy C2500 Suburban with 6.5L Turbo Diesel/4L80E 4x2

1980 Volvo 265 with 1997 S-10 4.3 and a modified 700R4

2010 GMC Sierra SLE 1500 4x2 5.3 6L80E

Offline 74 PintoWagon

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Re: New brake proportioning valve?
« Reply #3 on: December 15, 2015, 07:02:26 AM »
Real easy to adjust and they are fairly close when you get one, try it as you get it and if the back locks up too easy then reduce the pressure and vice versa, adjust until you get the braking you're comfortable with.
Art
65 Falcon 2DR 200 IL6 with C4.

Offline pintoguy76

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Re: New brake proportioning valve?
« Reply #4 on: December 15, 2015, 07:06:59 AM »
Ok. Any recommendation s on which one to get? Wilwood has one that looks pretty nice and comes with a bracket to mount it right beside or below the master cylinder...
1974 Ford Pinto Wagon with 1991 Mustang DIS EFI 2.3 and stock Pinto 4 Speed
 
1996 Chevy C2500 Suburban with 6.5L Turbo Diesel/4L80E 4x2

1980 Volvo 265 with 1997 S-10 4.3 and a modified 700R4

2010 GMC Sierra SLE 1500 4x2 5.3 6L80E

Offline 74 PintoWagon

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Re: New brake proportioning valve?
« Reply #5 on: December 15, 2015, 07:09:12 AM »
Can't go wrong with Wilwood.
Art
65 Falcon 2DR 200 IL6 with C4.