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Contaminated dic/pads

bragawdbragawd Posts: 160
edited December 2012 in MTB workshop & tech
Hi All...
Just wondering if my pads firstly are ruined.
I cleaned my bike the other day and I think I had some spray go on my disc(household cleaner pledge)
so I rode yesterday and my both brakes howled all day and to make matters worse they hardly had any stopping power.
I tried running them "on" on a few of the downhill road section to try wear it off but it didn't work.
so now I'm wondering if a disc clean or both a disc clean and a pad replacement is needed.

Posts

  • Mojo_666Mojo_666 Posts: 860
    bragawd wrote:
    Hi All...
    Just wondering if my pads firstly are ruined.
    I cleaned my bike the other day and I think I had some spray go on my disc(household cleaner pledge)
    so I rode yesterday and my both brakes howled all day and to make matters worse they hardly had any stopping power.
    I tried running them "on" on a few of the downhill road section to try wear it off but it didn't work.
    so now I'm wondering if a disc clean or both a disc clean and a pad replacement is needed.

    I usually clean the disks and replace the pads, I have some success cleaning pads too but if they are used then I replace them. And the easiest method I have tried to clean the disks is the dish washer, tried manually cleaning and it took a lot of effort, I got the same result from the dish washer, just put them in by themselves though, but not I dont use salt or rinse aid, not sure if that stuff will cause a problem.
  • Greer_Greer_ Posts: 1,716
    Just get some IPA (isopropyl alcohol), works a treat for cleaning most things, especially brake rotors.
  • ddraverddraver Posts: 21,211
    It wasn't just a wet miserable day like the rest of the UK? If it really was only a bit then they re probably fine, give them AMD the bile a proper clean. If you ve contaminated them properly then you must have bathed them in it!
    We're in danger of confusing passion with incompetence
    - @ddraver
  • i spilt brake fluid over the pads and rotor,used acetone(nail varnish remover) to soak the pads for a hour or so and gave the rotor a good clean with it, worked fine,just dont get it on any paint work
  • pop the pads out and using wet and dry remove the glazing, IPA wipe down the disc and pads, and give that a try,
    also, Stop using sprays on bikes!!! showed a lad at the lbs who was on work experience how far spray travels by sprayign a tiny amount up in view of a window and watching itfloat across the room!! bl##dt stuff gets everywere!!
    Timmo.
    After all, I am Cornish!
    http://cornwallmtb.kk5.org/
    Cotic Soul, The bike of Legends!:wink: Yes, I Am a bike tart!
    http://www.bikeradar.com/forums/viewtop ... 1#16297481
  • oxocube1oxocube1 Posts: 651
    If you want to save the money from buying new pads do the following:
    -Remove pads and leave them to soak them in disc brake cleaner/IPA.
    -Spray a decent amount of the same stuff on your discs and wipe them clean.
    -Then use a fine wet and dry paper and sand both your discs in the forward direction.
    -Then clean them again with cleaner.
    -After that take the pads out of the cleaner and wipe them down.
    -Then use some more coarse paper on the pads until the become shiny.
    -Finally clean the calipers and install pads

    If the noise is still happening and it's not due to wet weather, then you will need some new pads. Oh yea and never ever ever use pledge on your bike again...
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