Brake shoe break-in procedure?

Discussion in 'General Motoring' started by Mark G., Jul 22, 2008.

  1. Mark G.

    jim beam Guest

    why were they turned?
     
    jim beam, Jul 23, 2008
    #21
  2. Mark G.

    Mark G. Guest

    Beats me. This is the first time I have done the rear brakes myself.
    I took the drums to a local shop this afternoon. They measured them
    and pronounced them out-of-limit. Unfortunately I don't have a suitable
    caliper to verify this myself.
     
    Mark G., Jul 23, 2008
    #22
  3. Mark G.

    Mark G. Guest

    Beats me. This is the first time I have done the rear brakes myself.
    I took the drums to a local shop this afternoon. They measured them
    and pronounced them out-of-limit. Unfortunately I don't have a suitable
    caliper to verify this myself.
     
    Mark G., Jul 23, 2008
    #23
  4. Mark G.

    jim beam Guest

    ok, here's what i suggest - remove the drums yourself and check to see
    if there's a ridge. the brake linings are not /quite/ as wide as the
    drum width, so if there's wear, there will be a ridge between the
    original drum diameter and the worn drum diameter. if there's no ridge,
    or if it's tiny, like a finger nail thickness, they're b.s.ing you and
    you need to re-measure somewhere else. that said though, if the drums
    are badly grooved, just replace them.
     
    jim beam, Jul 23, 2008
    #24
  5. Mark G.

    jim beam Guest

    ok, here's what i suggest - remove the drums yourself and check to see
    if there's a ridge. the brake linings are not /quite/ as wide as the
    drum width, so if there's wear, there will be a ridge between the
    original drum diameter and the worn drum diameter. if there's no ridge,
    or if it's tiny, like a finger nail thickness, they're b.s.ing you and
    you need to re-measure somewhere else. that said though, if the drums
    are badly grooved, just replace them.
     
    jim beam, Jul 23, 2008
    #25
  6. Mark G.

    Mark G. Guest

    Yes, there was definitely a ridge. And the brakes have been rebuilt
    several times since I have owned the car, so I find it likely that the drums
    have been turned once or twice before.
     
    Mark G., Jul 23, 2008
    #26
  7. Mark G.

    Mark G. Guest

    Yes, there was definitely a ridge. And the brakes have been rebuilt
    several times since I have owned the car, so I find it likely that the drums
    have been turned once or twice before.
     
    Mark G., Jul 23, 2008
    #27
  8. Mark G.

    Mark G. Guest

    Yes, there was definitely a ridge. And the brakes have been rebuilt
    several times since I have owned the car, so I find it likely that the drums
    have been turned once or twice before.
     
    Mark G., Jul 23, 2008
    #28
  9. Mark G.

    Mark G. Guest

    Yes, there was definitely a ridge. And the brakes have been rebuilt
    several times since I have owned the car, so I find it likely that the drums
    have been turned once or twice before.
     
    Mark G., Jul 23, 2008
    #29
  10. Mark G.

    johngdole Guest

    See Bendix Brakes "Brake Burnishing Procedures"
    http://www.bendixbrakes.com/techCorner/faq.php



    Brake Burnishing Procedures for New Brake Pads or Shoes

    At Bendix, we highly recommend that new pads and shoes be broken in
    properly.
    After every brake job the technician should first confirm that he has
    a good brake pedal by gently stroking the pedal to move the wheel
    cylinders and caliper pistons back out to the normal position. After
    confirming a good pedal the follow burnish procedure should be used
    during the test drive:

    30/30/30 Burnish Procedure

    • Perform 30 stops from 30 miles per hour with a 30-second cooling
    interval between stops. These stops will be performed at a
    decelerating rate of 12 feet per second or less. This means that it
    should be a gentle easy stop.

    • The 30/30/30 Burnish Procedure beds the pads and shoes into the
    rotor and drums. It also deposits the necessary friction transfer to
    the rotors and drums for optimum brake performance.

    • Following this procedure also assures that your customer will have
    excellent brake performance from the first time he or she drives the
    car after brake service has been performed. You should not depend on
    your customer to break in the brake job. The only way to assure that
    it is done correctly is to incorporate it into your brake job test
    drive.
    Remember, proper burnishing assures a long lasting, high performing,
    noise free brake job!
     
    johngdole, Jul 25, 2008
    #30
  11. Mark G.

    johngdole Guest

    See Bendix Brakes "Brake Burnishing Procedures"
    http://www.bendixbrakes.com/techCorner/faq.php



    Brake Burnishing Procedures for New Brake Pads or Shoes

    At Bendix, we highly recommend that new pads and shoes be broken in
    properly.
    After every brake job the technician should first confirm that he has
    a good brake pedal by gently stroking the pedal to move the wheel
    cylinders and caliper pistons back out to the normal position. After
    confirming a good pedal the follow burnish procedure should be used
    during the test drive:

    30/30/30 Burnish Procedure

    • Perform 30 stops from 30 miles per hour with a 30-second cooling
    interval between stops. These stops will be performed at a
    decelerating rate of 12 feet per second or less. This means that it
    should be a gentle easy stop.

    • The 30/30/30 Burnish Procedure beds the pads and shoes into the
    rotor and drums. It also deposits the necessary friction transfer to
    the rotors and drums for optimum brake performance.

    • Following this procedure also assures that your customer will have
    excellent brake performance from the first time he or she drives the
    car after brake service has been performed. You should not depend on
    your customer to break in the brake job. The only way to assure that
    it is done correctly is to incorporate it into your brake job test
    drive.
    Remember, proper burnishing assures a long lasting, high performing,
    noise free brake job!
     
    johngdole, Jul 25, 2008
    #31
  12. Mark G.

    johngdole Guest

    Honda has added Akebono to the list, besides the good 'ol Findlex and
    Nissin. I prefer the Akebono and just get the aftermarket Akebono
    ProAct.
     
    johngdole, Jul 25, 2008
    #32
  13. Mark G.

    johngdole Guest

    Honda has added Akebono to the list, besides the good 'ol Findlex and
    Nissin. I prefer the Akebono and just get the aftermarket Akebono
    ProAct.
     
    johngdole, Jul 25, 2008
    #33
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