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  1. #1
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    Brakes. Yeah I know.

    So I spilled a large amount of WD40 on to my rear caliper by accident. Now my friction coefficient is extremely less. I had forgotten that I spilled the WD and I went out to ride and was like WTF oh yeah.....so I rode hard and locked down the rear caliper more than normal to try and "burn" the WD off the pads....no luck...so then I even grabbed a handful of fine dirt and rubbed it all over the disc hoping it would work like kitty litter at a molecular level. No luck. Anyone done this? and if so other than driving my ass to the bike shop and buying new pads what will kill WD40! ?

  2. #2
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    Fire. Put it on the burner on your stove and burn the stuff off. It will never work like new again, but close. Might as well buy new pads.

  3. #3
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    laquer thinner or mineral spirits possibly
    03 GT Avalanche 3.0-owned since new, some mods, some road rash. In the midst of upgrades

    07 home built chopper-9' long 5 ft tall at the grips. in the middle of a refurbish. Repairing road rash, rust and a blown up rear tire.

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    several projects in various states of construction-decontruction

  4. #4
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    I wouldn't use an indoor stove. smells like hell. I used the asian portable gas burner, $20 at ranch 99.

  5. #5
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    Might be an idea to find out what pads the OP has before recommending the stove/burn method, I don't think that it'd be a good idea to put resin/organic pads on the stove or to burn them.

    Alcohol is the most commonly used solvent for cleaning pads and rotors.

    If the pads have been badly contaminated the only solution to the problem is to buy new pads.

  6. #6
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    Roger that, I think I will try some solvent, if not... then I even thought about getting some pine sap from one of the many pine trees and slightly blow-torch melting a small amount onto the pad. something is bound to work.

  7. #7
    Redheaded Stepchild samburger's Avatar
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    Call me lazy, but all that seems like a lot of work for a $15 replacement part.
    just a n00b with an ego

  8. #8
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    Use fingernail polish remover. Let it soak for about ten minutes. Done!

  9. #9
    Senior Member himespau's Avatar
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    Quote Originally Posted by samburger View Post
    Call me lazy, but all that seems like a lot of work for a $15 replacement part.
    Yup, time to buy new pads.
    Punctuation is important. It's the difference between "I helped my uncle, Jack, off a horse" and "I helped my uncle Jack off a horse"


  10. #10
    mechanically sound frankenmike's Avatar
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    Save yourself alot of time and get new pads. Clean the rotor with alcohol or brake cleaner before using.

  11. #11
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    Quote Originally Posted by samburger View Post
    -Call me lazy, but all that seems like a lot of work for a $15 replacement part.

    -Yup, time to buy new pads.


    I'm too self-sufficient for that if its not neccerry. I enjoy a lot of work.

  12. #12
    Redheaded Stepchild samburger's Avatar
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    I enjoy working on my bike, but I enjoy knowing everything is performing as well as it can be more. Not criticizing, just different strokes for different folks.

    Let us know if you find a solution
    just a n00b with an ego

  13. #13
    Pokemon Master Darth_Firebolt's Avatar
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    who cares; it's your back brake.

  14. #14
    Pedals, Paddles and Poles Daspydyr's Avatar
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    ^^I still prefer my back brake. I know its wrong, I also eat ice cream right before I go to bed, I am a rebel.
    I think its disgusting and terrible how people treat Lance Armstrong, especially after winning 7 Tour de France Titles while on drugs!

    I can't even find my bike when I'm on drugs. -Willie N.

  15. #15
    GSH
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    The only way to fix is spring for some new pads and take some isopropyl alchohol on a clean rag to clean the WD40 off the disc. With the disc clean and new pads, you will have to re-burnish the disk, so you won't have full brake power for maybe 20 stops.

  16. #16
    ed
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    New pads. You have to clean the rotor with alcohol or the like as well.

  17. #17
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    Until you do the right thing about that back brake, you won't ride with me.

    But since I don't know where you live and ride, you probably won't ride with me ANYWAY.

    Oops; so much for peer pressure.

  18. #18
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    WD 40 is not a lubricant. It has zero lubricating qualities. It was originally created for the job of water displacement. Hence the name WD-40. It will help keep your stuff from rusting because it does a good job of getting rid of water. A mild detergent and hot water should clean it up. Then if you want to, use some acetone (or nail polish remover) on the brakes.

  19. #19
    Redheaded Stepchild samburger's Avatar
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    ^So use water to get rid of something used to get rid of water?
    just a n00b with an ego

  20. #20
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    Quote Originally Posted by samburger View Post
    ^So use water to get rid of something used to get rid of water?
    lol

  21. #21
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    Quote Originally Posted by DX-MAN View Post
    Until you do the right thing about that back brake, you won't ride with me.

    But since I don't know where you live and ride, you probably won't ride with me ANYWAY.

    Oops; so much for peer pressure.
    It's okay. Im use to this type of thing ->



    doubt you could keep up

  22. #22
    Gravity hunter dminor's Avatar
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    Quote Originally Posted by Hikezilla View Post
    WD 40 is not a lubricant. It has zero lubricating qualities.
    Well, that's not entirely true. It may have poor lubricating qualities for specific purposes but it does have them. A quick peek at the WD-40 MSDS reveals the following:



    Aliphatic Hydrocarbon:
    Animal-fat based oil or solvent (often fish oil)

    Petroleum Base Oil
    Hmmm . . . another lubricant

    LVP Aliphatic Hydrocarbon
    another one.

    . . . so, ya see, it's got a fair amount of oils, which I daresay likely have lubricating qualities. It displaces water because it contains a surfactant - - which 'wets' the water, or breaks down its surface tension, so that it will run off of whatever it's on and not just stick there.

    In fact, it's not a very good water-displacer for a lot of things (like electrical parts) because it DOES leave an oily residue - - unlike better water displacers like LPS-1.
    Last edited by dminor; 03-21-12 at 02:16 PM.

  23. #23
    one less horse cryptid01's Avatar
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    Quote Originally Posted by MadMechanic View Post
    It's okay. Im use to this type of thing ->



    doubt you could keep up
    Dont be so sure: http://www.redbull.co.uk/cs/Satellit...21242933163725

  24. #24
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    I use butter if I really have a grease problem, then wash off the butter with dish soap. After working on a car or bicycle, I just use some cheap vegetable oil to break down the petroleum products before washing with dish soap.

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