proportioning valve - Ford Truck Enthusiasts Forums



1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

proportioning valve

Reply
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 08-05-2011, 01:21 AM
arrowheadfred's Avatar
arrowheadfred arrowheadfred is offline
Posting Guru
Thread Starter
 
Join Date: Mar 2010
Location: WEWAHITCHKA FL.
Posts: 1,781
arrowheadfred has a good reputation on FTE.arrowheadfred has a good reputation on FTE.
proportioning valve

The under frame disk/disk booster i have should have a built in proportioning valve BUT i'm not so sure . Even if it has one built in would it hurt to add a adjustabe one ? If so what brand should i get ?
Reply With Quote
  #2  
Old 08-05-2011, 12:28 PM
ZOOT's Avatar
ZOOT ZOOT is offline
Elder User
 
Join Date: Jun 2010
Location: Sterling, Virginia
Posts: 933
ZOOT has a good reputation on FTE.ZOOT has a good reputation on FTE.
Is your brake system completed now? Can you drive the truck? If so, the test would be to hit the brakes and see if the disc brakes on the front are working before the rears. Try it in an open parking lot because if the booster doesn't have the proportioning valve, the rear end will start to slide to one side because the rear brakes are not working. An adjustable proportioning valve is needed. Speedway sells them. They sell quality products so I would trust them. Summit sells them as well as many other suppliers. Just don't buy an off brand. The valve on booster ( if there is one ) is preset so adding another one will change the pressure ratio. Hope that helps.
Reply With Quote
  #3  
Old 08-05-2011, 10:36 PM
mytbtruck's Avatar
mytbtruck mytbtruck is offline
Elder User
 
Join Date: Dec 2007
Location: Sandy Run SC
Posts: 790
mytbtruck is starting off with a positive reputation.
Quote:
Originally Posted by arrowheadfred View Post
The under frame disk/disk booster i have should have a built in proportioning valve BUT i'm not so sure . Even if it has one built in would it hurt to add a adjustabe one ? If so what brand should i get ?
I am using an adjustable proportioning valve from Summit. It is made by Stainless Steel Brake Co. I have front disc and rear drum brakes. I works very well and I am satisfied with it
Reply With Quote
  #4  
Old 08-05-2011, 10:49 PM
arrowheadfred's Avatar
arrowheadfred arrowheadfred is offline
Posting Guru
Thread Starter
 
Join Date: Mar 2010
Location: WEWAHITCHKA FL.
Posts: 1,781
arrowheadfred has a good reputation on FTE.arrowheadfred has a good reputation on FTE.
Thanks guys !!! I have new everything on my truck but i can't power brake it cause it just won't hold it back and with 4 wheel disk you would think it would .So something ain't right. I have good brakes but they could be better.
Reply With Quote
  #5  
Old 08-06-2011, 11:15 AM
ZOOT's Avatar
ZOOT ZOOT is offline
Elder User
 
Join Date: Jun 2010
Location: Sterling, Virginia
Posts: 933
ZOOT has a good reputation on FTE.ZOOT has a good reputation on FTE.
Sorry for being stupid but what does "I can't power brake it because it won't hold it back" mean ? Should be same pressure to all corners if it's all discs. Maybe I'm wrong,(not the first time)but the whole idea of a proportioning valve is to balance difference in pressure needed for a drums in the rear and discs up front. I can't see what purpose a proportioning valve would have in a four disc set up. It should stop on a dime with four discs.
Reply With Quote
  #6  
Old 08-06-2011, 02:07 PM
Lakotas53's Avatar
Lakotas53 Lakotas53 is offline
Elder User
 
Join Date: Jan 2008
Location: Alabama
Posts: 758
Lakotas53 is starting off with a positive reputation.
LOL power braking is you keep the front brakes locked while you break the rear ones loose for some really great smoking burnouts!
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Which proportioning valve to use? RalphXL Brakes, Steering, Suspension, Tires, & Wheels 0 07-13-2016 10:03 PM
1966 F100 Disk Brake Upgrade Broomfieldbum 1961 - 1966 F-100 & Larger F-Series Trucks 8 10-22-2015 08:46 PM
49 disk brake frustration rbtom 1948 - 1956 F1, F100 & Larger F-Series Trucks 2 01-19-2015 11:23 AM
front disk brake conversion jerry73 1973 - 1979 F-100 & Larger F-Series Trucks 34 11-16-2012 01:49 AM
Front disk brakes, on 1974 F100 4x4 Dan-79F350 1973 - 1979 F-100 & Larger F-Series Trucks 5 05-17-2000 04:19 PM


Go Back   Ford Truck Enthusiasts Forums >

Tags
1997, 1st, block, bronco, combination, early, escape, expedition, explorer, f100, ford, gen, proportional, proportioning, repair, valve, working

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


All times are GMT -5. The time now is 05:44 AM.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.