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Brake pedal Angle?

Discussion in 'Flat Fender Tech' started by DanStew, Mar 7, 2016.

  1. DanStew

    DanStew Preowned Merkin salesman Staff Member

    I am almost finished fabbing up my mount to install a intermediate CJ Master cylinder on my frame rail. I need to shorten up my pushrod.
    My question is, what is the angle of your brake pedal arm at rest on your jeep? I do not have the tub on so i do not have a starting point.

    I am looking for a measurement on the upper part of the lower part.
    [​IMG]
    The picture is not my setup, but close to it.

    Thanks!
     
    DanStew, Mar 7, 2016
    #1
  2. Sgt_jarhead

    Sgt_jarhead Sponsor

    Not sure if this will help, but I went out to my MB with a magnetic angle finder. I placed it against the underside of the brake arm, from the engine bay side. Looks to be about 54*
    [​IMG]
    [​IMG]

    Sorry for the photo quality, cellphones and tight engine compartments....
     
    Sgt_jarhead, Mar 8, 2016
    #2
  3. DanStew

    DanStew Preowned Merkin salesman Staff Member

    Thanks!! That is what i needed to get into the ball park.
     
    DanStew, Mar 8, 2016
    #3
  4. John Schiefer

    John Schiefer Fltfndr

    I believe you should pay more attention to how much free play you have in the push rod before it engages the MC piston. Should be about 1/8 to 1/4 inch
    I had to shorten my push rod a lot with Herms kit.

    Fltfndr
     
    John Schiefer, Mar 14, 2016
    #4
  5. Mark Wahlster

    Mark Wahlster Member

    I solved that problem I built my own mount and moved the MC forward (you can't do this with a Ross steering box) I adjusted it so the pedal stops 1/8th inch from the top of the MC when the MC totally bottoms out. I will adjust the pedal arm at rest once the Tub is on and I can set the proper free play. I really didn't like how angled and cramped the pushrod was using the Kits like the one from Herms geometry.

    But then I completely upgraded the whole clutch/brake pedal shaft setup.

    http://i65.photobucket.com/albums/h...d Brake shaft assembled web 1_zpsbufm1mpz.jpg

    http://i65.photobucket.com/albums/h...d Brake shaft assembled web 2_zpsfwmejchr.jpg

    http://i65.photobucket.com/albums/h...rake shaft disassembled web 1_zpsmnctmukt.jpg

    http://i65.photobucket.com/albums/h217/UJ78/Willys project/New MC mount web 9_zpsar3kwnql.jpg

    http://i65.photobucket.com/albums/h217/UJ78/Willys project/New MC mount web 8_zpstxpduog9.jpg

    http://i65.photobucket.com/albums/h217/UJ78/Willys project/New MC mount web 7_zpsusx8v2nn.jpg

    http://i65.photobucket.com/albums/h217/UJ78/Willys project/New MC mount web 10_zpsqqirsrxb.jpg
     
    Mark Wahlster, Mar 14, 2016
    #5
  6. sterlclan

    sterlclan Member 2024 Sponsor 2022 Sponsor

    [​IMG] that is a beautiful piece of work.(y)
     
    sterlclan, Mar 17, 2016
    #6
  7. Mark Wahlster

    Mark Wahlster Member

    Many many hours of head scratching and much pondering. My whole 48 Willys is being done like this. Anything I can afford to upgrade while staying in the Jeep family I am doing (that's a 72 CJ5 master cylinder and will be feeding 11" 65-68 Wagoneer Drum brakes) Same with the 70 1/2-71 30 spline flanged Dana 44 with Eaton E locker and G2 5.38 gears I built. Upgrade but still jeep. Granted a lot of DIY along the way.
     
    Mark Wahlster, Mar 18, 2016
    #7