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Another creaking question

Discussion in 'Bicycle Mechanics and Repairs' started by ianrauk, 11 Jun 2008.

  1. ianrauk

    ianrauk Tattooed Beat Messiah Staff Member

    Location:
    Barmy in Barming
    Hi All,
    bit of help please.
    3 month old bike, done about 1000 miles already.
    The cranks have developed quite a bad creak when putting down some power.
    It's not the pedals (spd), have taken them off, fitted normal pedals, creak still there. Tightened both cranks and the 3 chainset bolts, it's still there.
    When I trackstand on the bike and put the pedals level on the horizontal,
    creak appears when I put push down on either pedal.
    Could it be the bottom bracket?
    So any help appreciated
    Thanks in advance.
    Ian.
     
  2. goo_mason

    goo_mason Champion barbed-wire hurdler

    Location:
    Leith, Edinburgh
    Ian,

    Could be one of two things (which I recently had):

    1. The bottom bracket cups aren't as tight as they could be, making the BB creak against the frame. Remove the BB, clean it and the inside of the frame (as there's likely to have been water and muck getting in if the cups weren't tight), grease the threads and re-install.

    2. The creaking is the metal-against-metal of the cranks where they fit onto the axles / splines (or whatever they're called). Pull the cranks off and grease up the holes in them and the bits of the axle that they fit onto. Refit and tighten up again as normal.

    Hope that helps.
     
  3. walker

    walker New Member

    Location:
    Bromley, Kent
    3 months old, take it back
     
  4. Take it back
     
  5. Maz

    Maz Guru

    +1
    ...and if the next bike does the same, you know it's your knees.
     
  6. fossyant

    fossyant Ride It Like You Stole It!

    Location:
    South Manchester
    If you have the tools and know what you are doing, then I'd do it myself, but if you are not sure, go back !!!
     
  7. OP
    OP
    ianrauk

    ianrauk Tattooed Beat Messiah Staff Member

    Location:
    Barmy in Barming
    Thanks all for your replies, back to the bike shop it is then.
     
  8. jags

    jags Über Member

    ianrauk be sure to let us know if the bike shop found out what the problem is thanks
     
  9. OP
    OP
    ianrauk

    ianrauk Tattooed Beat Messiah Staff Member

    Location:
    Barmy in Barming
    OK, it's sorted, Goo Mason was spot on, the bottom bracket was a tiny bit loose, so they undid, greased up, tightend, no creak, Jobs a goodun! Thanks all.
     
  10. goo_mason

    goo_mason Champion barbed-wire hurdler

    Location:
    Leith, Edinburgh
    Good to know that my powers of deduction are improving ;):biggrin::biggrin:

    Glad it's fixed, Ian. Here's to a silent ride.
     
  11. TimC

    TimC New Member

    Location:
    Leeds
    This is an interesting post - I have a similar problem and I'm hoping to tackle it myself... I've heard that PTFE tape is worth trying - is this a good idea?
     
  12. OP
    OP
    ianrauk

    ianrauk Tattooed Beat Messiah Staff Member

    Location:
    Barmy in Barming
    I now know for next time. Will try my self if happens again. No ptfe needed. Just cleaned the threads, greased and tightened up. Just need the tools to do it.