+- Carolina Broncos (https://cb4x4.com)
+-- Forum: 66-96 Ford Broncos (https://cb4x4.com/forum-7.html)
+--- Forum: Bronco Tech (https://cb4x4.com/forum-40.html)
+--- Thread: rear disc brakes***HELP*** (/thread-140.html)
rear disc brakes***HELP*** - broncomatt - 12-27-2007
Hey I just asked you this on your other post, are you using a prop vavle.
By pass it with standerd unions.
I should have told you I run strait tube from the master too each axle. No other parts. The prop valve on the frame can be pushed over and not allow fluid.
Give me a holler if you want.
Broncomatt
rear disc brakes***HELP*** - blazinchuck - 12-28-2007
1st I change from drum/drum to manual disc front/drum rear on the EB axles
2nd changed to full widths 44/9" with ford disc front/chevy disc(1/2 ton truck)rear.
I bought a new booster/MC from ebay. Mounted it all up and no good pedal!
I put the old f250 MC I was using w/manual disc(on the EB axles) and had a great pedal-problem was the rear brakes were dragging really bad...rear smoking after 1 mile run!
So I did what others said, and bought a lincoln MC from a '79 mark V. I could never get a good pedal. I bled,bled,and bled...still no luck! I counldn't even get the front to gravity bleed! So today, I thought I would try yet another lincoln MC from the store-thinking the one I had was faulty. I installed it, bled the system again...no F*cking brakes still. I even eliminated the H-block mounted to the frame using unions. Now there is just lines from the MC to the front and rear main brake lines(nothing else). I bled everything again-still no brakes. I have adjusted the pedal rod 'til it feels right over and over. Still no brakes. I have to pump atleast 4-5 times for a somewhat firm pedal, let it up and hit them again- no pedal!!
WTF
I would like to fix this today, gotta do some local wheeling tomorrow!!!!
rear disc brakes***HELP*** - 69bronco - 12-28-2007
Chuck have you checked the calipers, maybe they are shot. My knowledge of disk brakes is limited. But that is all I an think of you have hit about everything else.
rear disc brakes***HELP*** - blazinchuck - 12-28-2007
what a huge difference ED!!! I haven't tried everything just yet, but now I have a pedal-A firm pedal! I'm sure this is the fix.
To clue all those who are wondering whats up...Ed suggested I check the length of the rod going into the MC. Well, I've already said the f250 worked good, but nothing else would.
I measured the depth of the hole on the f250 (1.375") and the lincoln was (1.415"). So I began inspecting the rod going into the MC from the booster bracket...it has a small adjusting bolt/lock nut. I screwed this out a few threads(about 4turns).
Wahlaa!!! Firm pedal! I will still test everything out good, and post the results...Thanks A bunch ED!!Chuck
rear disc brakes***HELP*** - jollygrngiant - 12-30-2007
Glad to hear you finally have some stopping power. Now... About that local wheeling. Wassup, I didn't get a phone call???!!!!!
Brian