Pedals rusted in

shouldbeinbed
shouldbeinbed Posts: 2,660
edited March 2012 in Workshop
I've picked up a beater of a MTB and got it cleaned up & fettled for my pub & dog walking bike. The pedals have beaten me so far, they are absolutely solid rusted into the cranks.

Gallons of wd40 haven't made a scrap of difference, I've wrecked my pedal spanner and am starting to round the pedal off. I'm loathe to leave them on as they're clicky & knackered internally and as ugly as sin even for a hacker.

Any advice before I give up or lash out on new cranks that will triple the value of the whole thing.

Comments

  • ddraver
    ddraver Posts: 26,787
    Pedal in a vice and rotate the crank? Might have to break/dissassemble the pedal to get the vice onto something solid...?
    We're in danger of confusing passion with incompetence
    - @ddraver
  • rake
    rake Posts: 3,204
    mix 50/50 atf(automatic transmission fluid) with acetone (nail polish remover), shake it up and apply to the stuck area and let it soak in.
  • desweller
    desweller Posts: 5,175
    Get cranks off, get them in a vice on a nice solid workbench and get a heat gun on them.
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  • Yossie
    Yossie Posts: 2,600
    The above plus smack the surrounding crank arm with a hammer - the force can help the rust break its seal slightly making removal easier.
  • dcj
    dcj Posts: 395
    +1 for heat. use a hair dryer if you have nothing more specialist. a few heat cycles and WD40 applied and left to soak over 24-48 hours should sort it
  • rake
    rake Posts: 3,204
    http://grassrootsmotorsports.com/tech-tips/55/ dont get it on any paint, itl take it right off.