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Technical brakes

Discussion in 'The Hokey Ass Message Board' started by Huckster59, Feb 16, 2023.

  1. Kerrynzl
    Joined: Jun 20, 2010
    Posts: 3,608

    Kerrynzl
    Member

    Clean the inside surfaces with a "rotary flap wheel"
     
  2. Huckster59
    Joined: Aug 21, 2008
    Posts: 566

    Huckster59
    Member

    can you turn the stock drums?
     
  3. Kerrynzl
    Joined: Jun 20, 2010
    Posts: 3,608

    Kerrynzl
    Member

    yes!
    You get uneven friction surfaces etc from when parked for extended times
    It feels like the drums are oval shaped [and pulse]. but is actually an uneven co-efficient of friction

    Sanding the shoes also helps.
     
  4. alchemy
    Joined: Sep 27, 2002
    Posts: 22,718

    alchemy
    Member

    Sure you can have the hub/drum ***emblies turned. Don’t try taking the drums off the hubs. Tell the tech to take it easy on them as they don’t make them any more. Some like to take a deep cut, which you don’t want.
     
  5. aussie57wag
    Joined: Jul 13, 2011
    Posts: 673

    aussie57wag
    Member
    from australia

    I'd consider just fitting a vacuum power booster on the drums. If your not doing a lot of towing and mountain driving the power boosted drums will be more than adequate for a cruiser. It will also be a lot cheaper and easier
     
  6. Huckster59
    Joined: Aug 21, 2008
    Posts: 566

    Huckster59
    Member

    well it sat for twenty years i’ll try to clean up before i take them to shop and turn them. thought about disc but i have 14” slots. don’t think the disc fit the 14”.
     
  7. 1971BB427
    Joined: Mar 6, 2010
    Posts: 9,832

    1971BB427
    Member
    from Oregon

    If he might have uneven surfaces now, he damn sure will using a flapper wheel to clean the drum! Nothing more than emery paper by hand should be used on drum brake surfaces. I'd take the drums to a shop that can check them for trueness, and can do a slight drum turning if needed.
     
    coast40 likes this.
  8. Kerrynzl
    Joined: Jun 20, 2010
    Posts: 3,608

    Kerrynzl
    Member

    PBR VH44

    I've never had an issue using a flap wheel in a cordless drill. [or using a flap disc on brake rotors] but this doesn't account for the incompetence of the user.
    If an idiot wants to spot reduce some rust he will cause problems

    @Huckster59 give them a good cleanup with a flap wheel in a cordless drill [don't lean on it, and keep it moving]
    If you need the drums machined, you will need oversized matching shoes.

    Do the DIY part first, before taking it to a brake machinist. Brakes don't go out of true while parked [it takes heat cycles]
    The flap disc is a trackside repair I've done that has been very successful
    once I got my wife to spin the rotor while I took to it with a flap disc in a 4" grinder. Then the caliper is re-installed and back on the track again [up to 170mph]
    This ^^^ was caused by debris picking up in the rotor.
     
  9. Even Wikipedia says you need to take a deep breath and try again.

     
  10. poco
    Joined: Feb 9, 2009
    Posts: 1,763

    poco
    Member
    from oklahoma

    If you go with disc do no use speedway, i had to modify brackets to get them to work and they make the front 2 inches wider.
     
  11. Huckster59
    Joined: Aug 21, 2008
    Posts: 566

    Huckster59
    Member

    i have been saving for wilwood
     
    gimpyshotrods likes this.
  12. Pete1
    Joined: Aug 23, 2004
    Posts: 2,262

    Pete1
    Member
    from Wa.

    You can't go wrong there.
     
    gimpyshotrods likes this.
  13. Huckster59
    Joined: Aug 21, 2008
    Posts: 566

    Huckster59
    Member

  14. disc brakes and dual system master cylinders are some of the few parts permitted regardless of the pre 65 rules
     
  15. Huckster59
    Joined: Aug 21, 2008
    Posts: 566

    Huckster59
    Member

    Backs done. New springs. No to tackle the front again. ;)
     

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    coast40 likes this.

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