residual valve placement? - Ford Truck Enthusiasts Forums



1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck

residual valve placement?

Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 09-22-2010, 01:56 PM
F-250 restorer's Avatar
F-250 restorer F-250 restorer is offline
Postmaster
Thread Starter
 
Join Date: Mar 2008
Posts: 4,870
F-250 restorer has a good reputation on FTE.F-250 restorer has a good reputation on FTE.F-250 restorer has a good reputation on FTE.
residual valve placement?

75 F250, doing a rear disc conversion, and wondered where should I install a 2 lb. residual valve in the system?

Between mstr. and proportioning valve?

after p. valve?
Reply With Quote
  #2  
Old 09-22-2010, 02:24 PM
HIO Silver's Avatar
HIO Silver HIO Silver is offline
Post Fiend
 
Join Date: Dec 2009
Location: NorCal
Posts: 19,788
HIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud of
The 2lb'ers should go between the prop valve and the front calipers. The 10 lb'er goes between the prop valve and line to the rear caliper.

If still in doubt, contact Stainless Steel Brakes or Masterpower Brakes.
Reply With Quote
  #3  
Old 09-22-2010, 05:33 PM
F-250 restorer's Avatar
F-250 restorer F-250 restorer is offline
Postmaster
Thread Starter
 
Join Date: Mar 2008
Posts: 4,870
F-250 restorer has a good reputation on FTE.F-250 restorer has a good reputation on FTE.F-250 restorer has a good reputation on FTE.
Quote:
Originally Posted by HIO Silver View Post
The 2lb'ers should go between the prop valve and the front calipers. The 10 lb'er goes between the prop valve and line to the rear caliper.

If still in doubt, contact Stainless Steel Brakes or Masterpower Brakes.
Won't the 10 lb on the rears create too much drag on the pads?
Reply With Quote
  #4  
Old 09-22-2010, 06:01 PM
Bullitt390's Avatar
Bullitt390 Bullitt390 is offline
Certified Thread Hijacker
 
Join Date: Aug 2001
Posts: 14,030
Bullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant future
I would install the RV AFTER the prop valve.

Exactly where is up to you as you have pretty much the entire length of the truck to place it. Maybe mid-way where the fuel line break is located.

Josh
Reply With Quote
  #5  
Old 09-22-2010, 06:13 PM
F-250 restorer's Avatar
F-250 restorer F-250 restorer is offline
Postmaster
Thread Starter
 
Join Date: Mar 2008
Posts: 4,870
F-250 restorer has a good reputation on FTE.F-250 restorer has a good reputation on FTE.F-250 restorer has a good reputation on FTE.
Interesting clarification: called ABS power brake, and they said the Caddy cals need that pressure to adjust properly, and it does not create a drag.

That could be another reason so many say these calipers don't adjust.

"Ya kayn't ... the manufacturer."
Reply With Quote
  #6  
Old 09-22-2010, 09:19 PM
Witty73's Avatar
Witty73 Witty73 is offline
Elder User
 
Join Date: Jan 2007
Location: Minnesota
Posts: 731
Witty73 is gaining momentum as a positive member of FTE.
Ok, I give up, my 74 when its done around the turn of the next century will have four wheel discs...whats the RV for?
Reply With Quote
  #7  
Old 09-22-2010, 10:24 PM
HIO Silver's Avatar
HIO Silver HIO Silver is offline
Post Fiend
 
Join Date: Dec 2009
Location: NorCal
Posts: 19,788
HIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud of
My bad.

I'll correct myself on the 10 lb RPV cuz I shouldda not relied on my memory (I was at work ya know?).. 10 lb'ers are only used with drum brakes. They'll all be 2 lb'ers with 4 wheel discs.. After further review, I don't think you need them unless you're building a street rod with the MC mounted low.

Below is a pic from the Speedway Motors catalog. In contrast however, I would install the rear valve after the proportioning valve.

Reply With Quote
  #8  
Old 09-22-2010, 10:38 PM
Bullitt390's Avatar
Bullitt390 Bullitt390 is offline
Certified Thread Hijacker
 
Join Date: Aug 2001
Posts: 14,030
Bullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant futureBullitt390 has a brilliant future
I would question why GM/ Cadillac felt the need to utilize RV's for disk brakes.

If they didn't install them from the factory, I would question why an aftermarket supplier is recommending them.

Keep in mind, calipers BY DESIGN are always in contact with the rotor. They only contract when pressure is released and also the slight run-out of the rotor (no matter how well a rotor is turned it has some run-out) also pushing.

I personally wouldn't install it. But if it wasn't a hassle it might make a fun experiment to see what difference it made.

If anything, I could see excessive drag at first, but eventually once the self-adjust begins to slacken it would eventually start making up the difference.

Josh
Reply With Quote
  #9  
Old 09-22-2010, 11:19 PM
F-250 restorer's Avatar
F-250 restorer F-250 restorer is offline
Postmaster
Thread Starter
 
Join Date: Mar 2008
Posts: 4,870
F-250 restorer has a good reputation on FTE.F-250 restorer has a good reputation on FTE.F-250 restorer has a good reputation on FTE.
Thanks for the feedback, guys. I am getting a bit confused though. I think I will install w/o the rv and see what happens. If I have probs keeping a pedal, or the adjusters don't work, then I can splice the 2 lb in. If that isn't enough, then I'll go with the 10 lb.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
ambient sensor Danny2016 1999 to 2016 Super Duty 10 06-08-2016 01:45 PM
OT Brake question - working on my 1929 Mercedes Gazelle Walston 1957 - 1960 F100 & Larger F-Series Trucks 4 05-03-2016 05:24 AM
Residual Pressure Valve, I think? Calbo3 1973 - 1979 F-100 & Larger F-Series Trucks 3 02-01-2016 04:17 PM
danny51 danny51 1973 - 1979 F-100 & Larger F-Series Trucks 3 10-18-2015 12:11 AM
Residual Pressure Valve? bc56845 1987 - 1996 F150 & Larger F-Series Trucks 2 11-15-2006 08:25 PM


Go Back   Ford Truck Enthusiasts Forums >

Tags
10, 10lb, 1983, 2lb, brake, bronco, f250, flow, ford, install, lb, low, pedal, residual, valve

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 Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 03:52 AM.