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Questions on Power Brakes

Discussion in 'Early CJ5 and CJ6 Tech' started by eti engineer, Jan 9, 2016.

  1. eti engineer

    eti engineer Member

    I used a piece of all-thread and lengthened the pushrod. I rounded the end of the all-thread to keep it from digging into the MC piston. I also used a jam nut to keep the rod from turning Now the brakes get hard less than an inch from rest position.
     
  2. Glenn

    Glenn Kinda grumpy old man Staff Member

    Sounds like you got it whipped! :)
     
  3. jzeber

    jzeber Well-Known Member 2022 Sponsor

    Any picks of how you made the longer pushrod? May need to do this myself.
     
  4. eti engineer

    eti engineer Member

    Sorry, I didn't take any. But it is simple. Remove the master cylinder assembly from the vacuum booster assembly, and then pull the push rod out of the vacuum assembly. There will be a piston on the other end and it may look like it shouldn't come out, but there is a plastic or nylon piece that comes out and opens up the diameter of the pushrod hole, so the piston will come out. Once it is out, you can unscrew the pushrod out of the piece on which the piston is mounted. You will have to make a SWAG (Scientific Wild A$$ Guess) as to how long you need the all thread to be, but I needed almost an inch longer. If things change, or if I need to take it apart again, I will take some pix. You have to understand. I was in a hurry, because I got plates for my Jeep tonight and wanted it to be ready for its maiden voyage. I was smiling from ear to ear as I drove down the road and people were pointing at it and watching it come down the road.
     
  5. Glenn

    Glenn Kinda grumpy old man Staff Member

    The people were probably thinking, "look, that's a real JEEP!" Congrats! :)