FYI FORD - MustangSteve's Ford Mustang Forum
The Internet's Most Knowledgeable Classic Mustang Information
IF YOU HAVE A QUESTION ABOUT CLASSIC FORD MUSTANGS, YOU HAVE COME TO THE RIGHT PLACE!
MustangSteve has over 30 years of Mustang experience, having owned 30 of them and restored several others. With the help of other Mustangers, this site is dedicated to helping anyone wanting to restore or modify their Mustang.... THERE ARE NO DUMB QUESTIONS!!!!!
Visit MustangSteve's web site to view some of my work and find details for:
FYIFORD Contributors' PICTURES - Power Brake Retrofit Kits for 65-66 Stangs - Classic Mustang FAQ's by MustangSteve - How to wire in a Duraspark Ignition - Mustang Ride Height Pictures and Descriptions - Steel Bushings to fit Granada Spindles to Mustang Tie Rods - Visit my EBAY store MustangSteve Performance - How to Install Granada Disc Brakes MustangSteve's Disc Brake Swap Page - FYIFORD Acronyms for guide to all the acronyms used on this page - FYIFORD Important information and upcoming events

You are not logged in. Would you like to login or register?

8/11/2020 7:08 PM  #1


65 FB Brake Pedal issues

65' FB 289 4bbl auto
Reman 70' Disc brakes on front , rebuilt stock drums on back
Reman 70' Booster, master, and proportioning valve
MS pedal reposition kit .Everything replaced from the booster to rear brake hdw kits

three or four quarts of brake fluid, pedal pump brake bleed, vacuum brake bleed, gravity brake bleed.
Pedal is good and firm when not running. Start the car pedal drops 3 to 4 inches, stops about 1" from the floor with fair brake response.

Someone help please

 

8/12/2020 12:27 AM  #2


Re: 65 FB Brake Pedal issues

Hi
Have you benchbleed the booster ? 

 

8/12/2020 5:38 AM  #3


Re: 65 FB Brake Pedal issues

Bench Bleed a booster?
Thats a new one on me. Please explain..https://cdn.boardhost.com/emoticons/confused.png

     Thread Starter
 

8/12/2020 7:33 AM  #4


Re: 65 FB Brake Pedal issues

Probably meant master cylinder.


Good work ain't cheap, Cheap work ain't good!   “Never trust a fart”
 

8/12/2020 9:29 AM  #5


Re: 65 FB Brake Pedal issues

Rudi wrote:

Probably meant master cylinder.

Correct Master Cylinder it is :-)

 

8/12/2020 10:28 AM  #6


Re: 65 FB Brake Pedal issues

Thought there was some sort of trickery i was going to learn.https://cdn.boardhost.com/emoticons/cute.png

But yes all of the normal, common brain farts have been checked and re checked.
Im thinking (after some advice) brake pedal adjust rod may be the culprit. I will soon find out. 

     Thread Starter
 

8/12/2020 11:02 AM  #7


Re: 65 FB Brake Pedal issues

What model vehicle is booster and master cylinder originally for?
What is the master cylinder bore diameter?
Was the master cylinder for power or manual application?

Worst case scenario, just send me your FB!

Since you have” too many projects”. 😁

Last edited by Nos681 (8/12/2020 11:04 AM)


65 coupe, 5.0L, T5, 3.25 Currie traction lock, strong arming for now
 

8/12/2020 11:16 AM  #8


Re: 65 FB Brake Pedal issues

LOL
Booster, master, and valve are new reman for 70' mustang w/ disc
Bore size i'm assuming is 1"

Funny you say just send it to ya. I told my neighbor he could have a running driving FB, the problem is you cant stop....
FYI:  Car was orginal KH disc brake car. At some point it was converted to granda brakes. 
I have done the MS pedal repostion and replaced the stock small booster and master cyclinder with the 70' mustang setup. now im here with issues. 

Last edited by Too many projects (8/12/2020 11:20 AM)

     Thread Starter
 

8/12/2020 11:24 AM  #9


Re: 65 FB Brake Pedal issues

Project list:

71 C10 LS swapped 
71 Jimmy in pieces 
69 Firebird 60% restored
37 International D2 pickled for the future
67 Triumph Bonneville bobber
68 Triumph Bonneville 
65 Triumph Tiger chopper
58 Sears allstate 175
you want the yard art list? 

     Thread Starter
 

8/12/2020 11:40 AM  #10


Re: 65 FB Brake Pedal issues

Downshift, neutral, and parking brake.😁

I have the foxbody booster that came with the MS pedal assembly with a 2001 v6 Mustang master cylinder.

I have used this combo with Granada brakes/proportioning valve/stock rear drums and no issues.

My car originally had 4 wheel power drum brakes.
So I didn’t notice a height change in pedal.

I did notice improved stopping power...and a little bit more sensitive compared to original setup.


65 coupe, 5.0L, T5, 3.25 Currie traction lock, strong arming for now
 

8/12/2020 11:45 AM  #11


Re: 65 FB Brake Pedal issues

Do you have picture of front brake setup?


65 coupe, 5.0L, T5, 3.25 Currie traction lock, strong arming for now
 

8/12/2020 11:47 AM  #12


Re: 65 FB Brake Pedal issues

ill take some today and post later.
Thanks

     Thread Starter
 

8/12/2020 4:15 PM  #13


Re: 65 FB Brake Pedal issues

How did you use a 70 booster on a 65. My kit is not designed for that. 

Did you adjust the rear brakes as tight as they can be?   You either have air in the system, calipers on wrong side, or rear brakes not adjusted, OR something terribly amiss with that 70 booster installation.   Do you have the 70 power brake pedal or one from a manual brake 70?   Need pics of that installation.


Money you enjoy wasting is NOT wasted money... unless your wife finds out.
 

8/12/2020 4:16 PM  #14


Re: 65 FB Brake Pedal issues

https://i.ibb.co/KjwNpVw/46545-DFE-B02-F-4-C56-9-D9-F-D4018-ADC30-AF.png


Money you enjoy wasting is NOT wasted money... unless your wife finds out.
 

8/12/2020 7:28 PM  #15


Re: 65 FB Brake Pedal issues

     Thread Starter
 

8/12/2020 7:41 PM  #16


Re: 65 FB Brake Pedal issues

Well i have a conundrum!
After zooming on the tag on the booster, it is a A-1 reman 504005 which fits 82' to 86' V6 mustangs 

     Thread Starter
 

8/12/2020 7:48 PM  #17


Re: 65 FB Brake Pedal issues

So the information i provided is wrong. I guess i received the wrong booster and master when i order from the local parts house.
Now that ive discovered this, ill assume this is my issue.

     Thread Starter
 

8/12/2020 8:26 PM  #18


Re: 65 FB Brake Pedal issues

If the booster is from 82-86, it should have the same fitment as the foxbody booster used in my kit.  I cannot see the relocated pedal pin on my phone’s screen.  It should be a little less than 1” center-to-center Lower than the old pin.
Be sure the booster output shaft is adjusted out so it almost touches the MC piston. 0.010” is about right amount of clearance.  Be sure your decimal is in the right place. 

If your pic of the caliper bleeder is taken with UP facing up on your camera, bleeder points rearward, then it is correct. 

Leads me to rear brakes. If they are not adjusted out close to the drums, you will have excessive travel.


Money you enjoy wasting is NOT wasted money... unless your wife finds out.
 

8/13/2020 5:45 AM  #19


Re: 65 FB Brake Pedal issues

You may want to add a 10 pound residual pressure valve to the rear brake line.  Dennis


www.quadmat.com  Butyl Sound Deadener & Insulation
 

8/13/2020 11:10 AM  #20


Re: 65 FB Brake Pedal issues

Dennis,
What will that do?
Im not familiar with it

     Thread Starter
 

8/13/2020 11:17 AM  #21


Re: 65 FB Brake Pedal issues

It will keep fluid pressure on the rear wheel cylinders so it requires less pedal travel to engage braking.

Last edited by Dkralc (8/13/2020 2:15 PM)


www.quadmat.com  Butyl Sound Deadener & Insulation
 

8/13/2020 4:20 PM  #22


Re: 65 FB Brake Pedal issues

Are the rear brakes adjusted out to the drums?


Money you enjoy wasting is NOT wasted money... unless your wife finds out.
 

8/13/2020 4:26 PM  #23


Re: 65 FB Brake Pedal issues

Yes sir
There is a light drag when turning by hand

     Thread Starter
 

8/13/2020 4:53 PM  #24


Re: 65 FB Brake Pedal issues

Let me add that the pedal only travels 1 to 2 inches when not running and is setting where it should.
Only when vacuum (Engine running)is applied to the booster does the pedal travel 4 to 5 inches to about a 1" off the floor.

     Thread Starter
 

8/14/2020 9:31 AM  #25


Re: 65 FB Brake Pedal issues

That much travel is definitely Indicative of a problem.  Will the pedal return to static position fully before hitting the rubber stop?  I am wondering if the pedal is not allowing the mc to fully relax.


Money you enjoy wasting is NOT wasted money... unless your wife finds out.
 

Board footera


REMEMBER!!! When posting a question about your Mustang or other Ford on this forum, BE SURE to tell us what it is, what year, engine, etc so we have enough information to go on.