seized seatbolt on look carbon frame

zybernut
zybernut Posts: 157
edited June 2008 in Workshop
friend bought a look 241 carbon frame off ebay a few weeks back.turns out the seatbolt allen key head is rounded so no grip. is there any way to remove this bolt at all. any help would be appreciated.

zybernut

Comments

  • topdude
    topdude Posts: 1,557
    Some suggestions :
    1, force an oversize Torx bit into the rounded allen key hole.
    2, carefully drill out the head of the bolt.
    3, carefully drill into the bolt and use a stud extractor.
    4, carefully cut a slot in the head with a hacksaw if there is room.
    5, very carefully cut through the clamp with a hacksaw.
    good luck.
    He is not the messiah, he is a very naughty boy !!
  • zybernut
    zybernut Posts: 157
    got the bolt out using a reverse threading tool but have now discovered the deatpost is stuck. its a look carbon post, how will i get this out? any ideas


    zybernut
  • Monty Dog
    Monty Dog Posts: 20,614
    I presume its an older Look frame with aluminium lugs in which case corrosion is the problem - effectively, the suface of the aluminium oxidises and makes the seattube smaller, gripping the post firmly. It's unlikely that any lubricant can penetrate sufficiently to fee the post - but try some Plusgas and leave for a while - I doubt you're going to get the posts out easily - probably using a lot of force or even destroying it in the process. www.sheldonbrown.com has lots of ideas for removing stuck posts - good luck
    Make mine an Italian, with Campagnolo on the side..
  • scotchio3
    scotchio3 Posts: 24
    Penetrating lubricant and a hairdryer to help expand the frame slightly, try repaetedly over a few days, if not it may need to be cut out. Sorry

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