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Real Time tech ? - Scored brake disc

Discussion in 'Chit-Chat' started by NMuzj100, Aug 19, 2006.

  1. NMuzj100

    NMuzj100

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    - Replacing the pads on the rear of my 100
    - metal to metal contact with one pad
    - the surface of the disk is slightly rough but no major gouges
    - It is now 11:30pm
    - I need the cruiser to drive to work tomarrow around noon
    - I have no second car to take the disc to a machine shop

    ? - do I really need to machine the disc or will the new pad eventually wear it down by it self. If I choose to go without machining how long will my brakes perform/feel/sound bad ?
     
  2. projektdotnet

    projektdotnet

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    if you don't machine now you'll wish you had later.
     
  3. cruiserman

    cruiserman

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    Slap the pads on and get on with your life.
     
  4. NMuzj100

    NMuzj100

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    Feedback 50/50 .... any other opinions ?
     
  5. KLF

    KLF Frame waxer SILVER Star

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    I'd like to see a picture to make a call, but I'd say run it like it is. I put new pads on a my GF's Volvo last year with badly scored rotors, still working fine.

    If it makes you nervous, pull the rotor and replace it when you have time later.
     
  6. White Shark

    White Shark

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    I'd slap on the new pads and drive it like it was stolen. Most of the tech guy I know recommend getting new rotors when the old ones are heavily scored due to the fact that turning the rotors removes much of the material reducing cooling, reducing strength, etc. These are big and heavy trucks. They need all the rotor they can get.

    I've run pad swaps without swapping rotors to no detrimental results for some time with little or no braking difference. It's a good idea to swap the rotors when heavily scored though. The small stuff is no big deal.
     
  7. dieseldog

    dieseldog She idles just fine . . .

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    Yeah, since you said slight/minor scoring, I'd slap em on. You'd KNOW if you need the new rotors, amigo.
     
  8. NMuzj100

    NMuzj100

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    I went ahead and had the rotor machined. $11 so not too expensive. The machinist was impressed with the size of the disc and showed me two he had in from a 3/4 ton dodge that were about the same size.

    It did look like it took off a lot of material. (Weakening the disc and making it more warp prone). The disc was just over 17mm before machining and just slightly over 16mm after machining. New they are 18mm and the FSM says to replace at under 16mm.

    Thanks everyone for the help.
     
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