Author Topic: Brake pedal travel  (Read 2309 times)

Tinkeys

  • Senior Forum Member
  • ****
  • Posts: 497
  • Tony
    • View Profile
Brake pedal travel
« on: March 03, 2011, 12:08:08 PM »
What would be normal brake pedal travel on 30U Plymouth ?
I have new master cylinder ,wheel cylinders new brake hoses ,re-used brake shoes as are at 80%. Re-adjusted shoes ,bleed hydraulic system till no air was present and if pressed brake pedal hard can get pedal to almost floor board. Is this normal ?

29plycoop

  • FOUNDING MEMBER
  • Senior Forum Member
  • *****
  • Posts: 294
  • HAPPY MOTORING !!!!
    • View Profile
Re: Brake pedal travel
« Reply #1 on: March 04, 2011, 06:06:32 AM »
The brake pedal down near the floorboard is not normal any time. Bleed the right rear cylinder first, then left rear, right front, then left front cylinder, while keeping the master cyl. full at all times. A hand vacuum bleeder works very well and can be done that way by your self. You don't have to pump the pedal. Sounds like there is still air trapped in one of the lines. Good luck with a second try. - Rich
Plymouth and inovation go hand in hand.

SDGlenn

  • Senior Forum Member
  • ****
  • Posts: 280
    • View Profile
Re: Brake pedal travel
« Reply #2 on: March 04, 2011, 06:09:08 AM »
Hi Tony, The only thing I can think of is:  Does your pedal come all the way to the top? before you compress it to the floor. Is it getting a full stroke? You have all the air out, so the only other thing I can come up with is the brake shoes are not adjusted close enough to the drum, The bottom of the shoe and the top of the shoe. Is the brake pedal hard when you get to the floor? If it is then you need to adjust. If it is spongy, you have air. Good luck
SD Glenn
SDGlenn

Tinkeys

  • Senior Forum Member
  • ****
  • Posts: 497
  • Tony
    • View Profile
Re: Brake pedal travel
« Reply #3 on: March 04, 2011, 11:48:54 AM »
Thank you guys ! pedal does feel a little spongey and was coming all way up before depressing. Being it's right hand drive do I bleed further most wheel from master first ?

chetbrz

  • POC MEMBER
  • Senior Forum Member
  • ****
  • Posts: 1513
    • View Profile
    • My Space on the Web
Re: Brake pedal travel
« Reply #4 on: March 04, 2011, 02:02:37 PM »
Thank you guys ! pedal does feel a little spongey and was coming all way up before depressing. Being it's right hand drive do I bleed further most wheel from master first ?

If all the air is out of the system the most likely cause for your problem is one or more miss aliened brake shoes.  I had a similar problem until I readjusted my brakes and gained almost half the pedal travel.   Also I used the AMMCO 1750 tool to align the shoes and still had to go back and redo the fine adjustment. 

See link:

http://www.chetscoins.com/1929/Work_Files/Brakes01062007.htm


Chet...
http://www.1948Plymouth.info           Web Master - Forum Administrator - AACA member

Tinkeys

  • Senior Forum Member
  • ****
  • Posts: 497
  • Tony
    • View Profile
Re: Brake pedal travel
« Reply #5 on: March 09, 2011, 12:19:05 PM »
Hi Guys !!
         I might require some guidence on proper way to re adjust brake shoes !
I have tried to get bottom of shoes to just touch brake drum then adjust top adjusters , Would this be the correct way without using measuring tool ?

chetbrz

  • POC MEMBER
  • Senior Forum Member
  • ****
  • Posts: 1513
    • View Profile
    • My Space on the Web
Re: Brake pedal travel
« Reply #6 on: March 09, 2011, 02:20:57 PM »

Try this link to a brake adjustment for a P15 Plymouth.  Same principle as the earlier Plymouths.

http://www40.addr.com/~merc583/mopar/p15pdf/brake.pdf

Chet...
http://www.1948Plymouth.info           Web Master - Forum Administrator - AACA member

29plycoop

  • FOUNDING MEMBER
  • Senior Forum Member
  • *****
  • Posts: 294
  • HAPPY MOTORING !!!!
    • View Profile
Re: Brake pedal travel
« Reply #7 on: March 10, 2011, 05:29:11 AM »
More info on how to adjust Plymouth brakes. Try this site too - Rich

www.ply33.com/repair/brakes
Plymouth and inovation go hand in hand.

Tinkeys

  • Senior Forum Member
  • ****
  • Posts: 497
  • Tony
    • View Profile
Re: Brake pedal travel
« Reply #8 on: March 10, 2011, 11:57:59 AM »
Thank you Guys !
This info is so helpful ,I should be able to try it out tomorrow.
Cheers Tony.

Tinkeys

  • Senior Forum Member
  • ****
  • Posts: 497
  • Tony
    • View Profile
Re: Brake pedal travel
« Reply #9 on: March 11, 2011, 12:24:40 PM »
Thank you I could not have done this without your help , followed procedure and worked !
The brake pedal is now approximate 3/4 up what a difference those bottom adjusters make,you have made my weekend.