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Old cranks removal

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  • 18-07-2008 9:46pm
    #1
    flickerx
    Registered Users Posts: 1,234 ✭✭✭


    Oh fellow boardsers, please bestow on me your wisdom or a link on how to get these cranks off. No idea what they are or how they work. Its for someone here once I've taken it out, someone up in the 'parts for trade' thread, cant remember who now though. Also any tips/advice on getting the bb out would be welcomed...

    Drive side:

    2680057543_d641ac2e3e.jpg

    2680879942_3e304fa36c.jpg

    And the non-drive side:

    2680878522_79935137e8.jpg

    2680879224_0272c1a784.jpg

    Thanks!


Comments

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    #2
    Morgan
    Registered Users Posts: 2,481 ✭✭✭Morgan


    They're cottered cranks. I've never worked on them, but Sheldon has:

    http://www.sheldonbrown.com/cotters.html


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    #3
    Hermy
    Moderators, Society & Culture Moderators Posts: 11,375 Mod ✭✭✭✭Hermy


    These links might help with the bottom bracket.

    Firstly Sheldon says this: http://www.sheldonbrown.com/tooltips/bbcups.html

    And secondly Parktool say this: http://www.parktool.com/repair/readhowto.asp?id=93

    I hope this is relates to your bike.

    EDIT: I don't know if you've seen the link to bicycletutor.com mentioned in another thread but you might find useful info there too.

    Genealogy Forum Mod



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    #4
    stuf
    Registered Users Posts: 578 ✭✭✭stuf


    tapered cotter pins need a good whack with a hammer on the narrow side - when I were a lad all bikes were like this


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    #5
    studiorat
    Closed Accounts Posts: 6,408 ✭✭✭studiorat


    stuf wrote: »
    tapered cotter pins need a good whack with a hammer on the narrow side - when I were a lad all bikes were like this

    +1
    none of yer fancy crank extractors here!
    A piece of wood between hammer and pin might be wise though!
    bottom bracket's going to be ball bearingtastic too...


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    #6
    psycholist
    Closed Accounts Posts: 70 ✭✭psycholist


    stuf wrote: »
    tapered cotter pins need a good whack with a hammer on the narrow side - when I were a lad all bikes were like this

    http://www.youtube.com/watch?v=JomHWt7p6-c


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  • Options
    #7
    thesunwashot
    Closed Accounts Posts: 91 ✭✭thesunwashot


    Well I inherited this frame and a good bash with a hammer worked a treat for removing the cranks.

    If anyone has a fetish for some old skool cranks let me know and they are yours.


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    #8
    flickerx
    Registered Users Posts: 1,234 ✭✭✭flickerx


    I have another one with cottered cranks - might get you to help me with it?

    Glad to hear you managed to remove them - that's a decent enough frame.

    My head still hurts after Holyhead... there's nothing to do there except get drunk.


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    #9
    thesunwashot
    Closed Accounts Posts: 91 ✭✭thesunwashot


    flickerx wrote: »
    I have another one with cottered cranks - might get you to help me with it?

    Glad to hear you managed to remove them - that's a decent enough frame.

    My head still hurts after Holyhead... there's nothing to do there except get drunk.

    Sorry I missed this reply. I'll defo help you with the crank removal. Let me know...

    I was resurrecting this thread because although the cranks were easy enough to remove I've been having a real battle getting the fixed cup off.

    I tried various spanners with absolutely no luck at all before resorting to the advice of the bearded one.

    This page had the solution:

    http://www.sheldonbrown.com/tooltips/bbcups.html

    I built up a tool like the one shown in Fixed Cup Tools section.

    The fixed cup was screwed in so insanely tight that the first bolt sheared.

    I came back to it tonight with a bigger bolt/nut/spanner and after applying a lot of force to it, it finally came loose.

    I guess these cups are so outdated now that we won't have to deal with them very often but if you ever need to shift one follow Sheldon's advice...


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