Quantcast 1974 f250 brake problem please help - Ford Truck Club Forum








New Posts



Remember Me?
       Join for free!




FTC Toolbar

Social Sites


Ford Truck Club Forum > FORD F-250 | F-350 SERIES | SUPER DUTY > 1948-1986 Ford F250 | F350

Welcome to FordTruckClub.net
Welcome to FordTruckClub.net, the internet's premier Ford truck community! You are currently viewing our boards as a guest which gives you limited access to view discussions and access other forum features. By joining our free online community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple, and absolutely free so please, join our community today!

Forgot your password? click here.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools Display Modes
Old December 12th, 2012, 04:55 PM
ktm126's Avatar
ktm126 ktm126 is offline

Join Date: Mar 2012
Posts: 49
Images: 30
Likes : 0
Liked 0 Times in 0 Posts
Default 1974 f250 brake problem please help

Hey guys,
Well a while back I put a new front axle on my truck and I converted from drum brakes to disc brakes. I have put on new calipers, a new brake booster, new master cylinder, and new brake lines and hoses. The problem is that im getting very little pressure and I have bled all of my brakes a million times and still very little pressure at the peddle. Every once in a while I will get real good pressure at the peddle and down at the the calipers but then it goes away in about a half hour. I have been checking for leaks but cant find any.Im super confused at this point, does anybody have any advice?


Old December 12th, 2012, 05:10 PM
BigBlue79's Avatar
BigBlue79 BigBlue79 is offline

Join Date: Sep 2011
Location: Sapulpa, OK
Posts: 5,892
Images: 1113
Likes : 14
Liked 51 Times in 44 Posts

Is the brake booster hissing or anything?? Sounds as if either it's got a bad diaphragm or the little actuation rod between the Master Cylinder and Booster isn't adjusted properly. Only things I can think of.
Old December 12th, 2012, 06:50 PM
bikertrash3531's Avatar
bikertrash3531 bikertrash3531 is offline

Join Date: Oct 2011
Location: Joplin, MO
Posts: 2,093
Likes : 44
Liked 36 Times in 30 Posts

Did you bleed them in the propper order? Pass Rear, driver rear, pass front, driver front? Pull the rear drums and look for leaks at the wheel cylinder. When you went from drums to disc, did you change the distribution block? I ask because the way i understand it, disc require a different pressure than drum. Hope this helps.

1994 F150 XLT ExCab SB 306, 4R70w, 8.8 3.55 open, MSD StreetFire coil, Taylor Siro Pro wires, MSD cap and rotor, 1.72 Roller Rockers, 2º cam advance w/ Cloyes Street True Roller timing set, Flat top Hyperutectic pistons, Flowtech Long Tube headers, Xpipe, High flow Magnaflow converters, Spintech XL Sportsman DIDO muffler.

Old December 12th, 2012, 08:43 PM
JSoko's Avatar
JSoko JSoko is offline


Join Date: Jun 2009
Location: Northwest Georgia
Posts: 14,879
Images: 616
Likes : 30
Liked 170 Times in 152 Posts

2 good answers
I can't add

For Those Who Fought For It...
Freedom Has A Taste The Protected Will Never Know.

Old December 13th, 2012, 12:35 AM
ktm126's Avatar
ktm126 ktm126 is offline

Join Date: Mar 2012
Posts: 49
Images: 30
Likes : 0
Liked 0 Times in 0 Posts

No the brake booster isn't hissing and yes ive tried messing with the actuation rod as directed in my manual and still nothing different.I alsow bled the brakes in that order.and good idea Ill check back behind the drum.also no for the distribution block ill deffently try that .thanks guys a lot.ill deffently try this stuff out tomorrow

Thanks agin,

Thread Tools
Display Modes

(View-All Members who have read this thread : 10
'77250CUSTOM , ASwaff400 , BigBlue79 , bikertrash3531 , Booba5185 , JSoko , ktm126 , Russo2 , tmace , werewilfs

Similar Threads
Thread Thread Starter Forum Replies Last Post
brake booster problem ktm126 1948-1986 Ford F250 | F350
3 January 21st, 2013 08:36 PM
1974 f250 4x4 ktm126 New Member Introductions 8 December 17th, 2012 06:29 PM
What Are You Workin' On? - 1974 Sleekcraft Rebel Jet Boat[S6 Ep. 3-5] Gearz Gearz 0 December 11th, 2012 04:30 PM
Pretty messed up 1974 f250 front differential ktm126 1948-1986 Ford F250 | F350
16 April 19th, 2012 08:25 AM
1974 f250 4x4 wont start ktm126 1948-1986 Ford F250 | F350
15 March 21st, 2012 04:14 PM

1974 , brake , f250 , problem

Forum Jump

FordTruckClub.net is not authorized, endorsed or affiliated with the Ford Motor Company
or any of their subsidiaries. Ford® is a registered trademark of the Ford Motor Company

Powered by vBulletin® Version 3.8.6 Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.