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41 Commander: I have a problem
  • Paul W
    Posts: 1Hitchhiker
    Hi everyone,



    I'm new on here, mainly because I have a problem, which just keeps on recurring. Recently I renewed all the brake lines, the hoses and put new kits in to the wheel clinders, and the master cylinder. In other words a complete overhaul, I did this because no matter how hard I tried I had air in the system.



    Well I went out and after about 15 miles, the pedal got really hard, and the brakes came on. I thought that it was a master cylinder problem, so I had it rebuilt at a shop, I pressure bled it to make sure there were no leaks, and off we went again, and again the same thing happened. So I checked the wheel cylinders thay were fine, but it happened again. I dont know what to do next.

    The brake pedal is adjusted so that there is about 3/4 of an inch play in the pedal, and the wheels are adjusted so that the brakes just touch the drums.



    I am wondering whether to back offf the brakes a little because it seems to me that they get hot really quickly and build up the presure. So far 3 x mast cyl kits: and 4 wheel cyl kits. :mad:



    Anyone had this problem?



    Paul



    PS its the only one in the UK, thats another reason to come on here!! :D
  • Oldcar_MechanicOldcar_Mechanic
    Posts: 1,786Platinum Member
    Two things come to mind.



    1) The brakes may be adusted to tight.



    2) Remove the master cylinder cover and when you release the pressure off the brake pedel (after you applied the brak) you should see a small fountain of brake fluid squirt up. If it doesn't, then you have a plugged return port.



    Ron
  • davegnh1
    Posts: 91Expert Adviser
    I agree, I think you have a plugged return port--sometimes when you hone/clean the port gets plugged and the brakes don't release--Been there, done that.