Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 21

Thread: 67 m715 brake pedal to the floor

  1. #11

    Default

    I hate to sound like a 'Safety-Nazi', but.....
    For the safety of yourself and others, you really should rebuild, or replace all four wheel cylinders, and the master cylinder if this vehicle is driven on the road.
    The stock single circuit fluid system has no fail-safe if any part of the system loses pressure.

    At least make sure the parking/emergency brake is working.
    Roy

  2. #12
    Join Date
    Jan 2004
    Location
    New Haven, CT
    Posts
    1,954

    Default

    This is an excellent time for putting a double circuit master cylinder.

  3. #13
    Join Date
    Sep 2014
    Location
    Wichita Falls, TX
    Posts
    603

    Default

    Quote Originally Posted by gerrykan View Post
    I hate to sound like a 'Safety-Nazi', but.....
    LOL, I guess somebody's gotta do it...

    I started to suggest that the whole system is due for upgrades myself, but it sounds like it isn't driven.. and I know how that budget thing goes. Having to replace the whole system on mine piece at a time.

  4. #14
    Join Date
    Dec 2003
    Location
    West-central Ohio
    Posts
    689

    Default

    Hey, guys, been awhile, tooooo long! I'm bringing my M715 back to life and ran into the same thing, brake pedal to the floor. Over the years I've had to replenish the brake fluid every once in awhile, but now it's a pretty good leak. I noticed the paint on my firewall/floorboard blistering pretty badly, points to a hosed master cylinder. I'm not going to deal with a rebuild, either stock or dual-circuit. A bit late in the day now, I'll search tomorrow... Later.
    "other peoples junk, is something or other" - Militarypotts 02/07/2011

  5. #15

    Default

    Quote Originally Posted by bump_r View Post
    I noticed the paint on my firewall/floorboard blistering pretty badly, points to a hosed master cylinder.
    So common. Dumps the fluid on the floor and blisters the paint. If a slow leak, it evaporates so you keep looking for where it is leaking.
    SFC, HQ,129th Sig Co, PAARNG, Vietnam Era

  6. #16
    Join Date
    Dec 2003
    Location
    West-central Ohio
    Posts
    689

    Default

    The truck's had a phantom leak for some time, M/C goes dry when sitting for lenghts of time, never found trails down tire sidewalls, backing plates, or puddles on the ground. I've already upgraded all 4 slaves with Ford items, had good, solid pedal when used, so I'm pretty confident the M/C pushrod is THE culprit, just never spent enough time "down under" to see the telltale signs. I've got the dual-circuit Cardone on the way. I am a bit concerned, the pic on Amazon appears to be the disc/drum variety as the front and rear chambers are different sizes. I hope it's just a "stick photo" and it's REALLY a same volume/pressure front versus rear that I need for a drum/drum setup. It came from Iowa, should have had jeepistdoug checked it.
    "other peoples junk, is something or other" - Militarypotts 02/07/2011

  7. #17

    Default

    The outputs on the cardone 10-1371 which is disc/disc are 9/16 for front and 1/2 for the rear. get reducers for your line size. also the stock block for the brake lines should be replaced with a proportioning valve from wildwood and is adjustable for rear output. I just did this on my truck and am dealing with a 49 yr old brake line that decided to leak when I tried to move it. and doesn`t want to come off front brake hose.

  8. #18
    Join Date
    Dec 2003
    Location
    West-central Ohio
    Posts
    689

    Default

    Poop, I got the 10-1331 coming.
    "other peoples junk, is something or other" - Militarypotts 02/07/2011

  9. #19

    Default

    the 10-1331 has a bigger piston 1 1/8 same size outputs. it will work. so don`t fret.

  10. #20
    Join Date
    Dec 2003
    Location
    West-central Ohio
    Posts
    689

    Default

    But it is a disc/disc or drum/drum? Same pressure & volume from each output?
    "other peoples junk, is something or other" - Militarypotts 02/07/2011

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


Site Upgrade, Design Modifications & Administrative Support by:
Palm River Enterprises LLC, IT Solutions
President: Tom King, User ID=teking
This site is owned and operated by:
M715 Zone, LLC
President: Jon Schmidt, User ID=brute4c


If you have any suggestions, comments, problems or questions, contact:  brute4c@m715zone.com
Use of this site means you understand and agree to our TERMS OF USE

Copyright Notice:
This web site is subject to the protection of the copyright laws of the United States and other countries. Except for Personal Use Only, you may not modify, copy, distribute, transmit, display, perform, reproduce, publish, license, create derivative works from, transfer, or sell any information obtained from any part of the M715 Zone website without the prior written permission of M715 Zone, LLC. Written permission can only be obtained by contacting brute4c@m715zone.com

Copyright 1998-2024