Viewing 29 posts - 1 through 29 (of 29 total)
  • Arrgggghhhh: Fettling eff-up
  • mikey74
    Free Member

    Is there anyway to save a non-driveside Zee crank with a stripped bolt? If not, can I buy a spare crank? I’ve done a quick search in the usual places and can’t find any yet.

    Nobeerinthefridge
    Free Member

    Nut and bolt.

    CaptainFlashheart
    Free Member

    Step 1 – Use a hammer
    Step 2 – If Step 1 fails, use a bigger hammer

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    mikey74
    Free Member

    Perhaps I should expand: Whilst re-fitting the non-driveside crank one of the pinch bolts managed to strip the internal thread of the crank (note that I am blaming the bolt, not myself :mrgreen: ), so now the bolt just continues turning.

    A nut and bolt could be an option, if I could find a bolt small enough.

    ThePinkster
    Full Member

    How about drilling & re-tapping the thread and use a slightly larger bolt?

    duncancallum
    Full Member

    Helicoil it

    davewalsh
    Free Member

    +2 for helicoil.

    mikey74
    Free Member

    How about drilling & re-tapping the thread and use a slightly larger bolt?

    I don’t really have the tools for that at the moment but it’s an option. If the crank material is that soft, wouldn’t making the hole larger weaken them?

    P20
    Full Member

    Is there any thread left that a longer bolt would be able to work?

    Speshpaul
    Full Member

    Chase the thread out with the same size tap.
    Some times they will come back, a new bolt can help.

    simondbarnes
    Full Member

    Madison stock LH Zee crankarms @ £44.99 – pretty much any bike shop will be able to get you one.

    ThePinkster
    Full Member

    If the crank material is that soft, wouldn’t making the hole larger weaken them?

    No idea without looking at one TBH. Either helicoiling or buying a new arm would be a better bet if you don’t have the kit and aren’t in too much of a rush.

    somafunk
    Full Member

    This is going to sound pretty stupid but i have repaired similar by wrapping the bolt thread with strips of tinfoil then seeing if it will bite, sometimes it takes a few wraps/attempts but when/if it does then it’s bodgetastic celebration time.

    edit : no grease, clean everything so it’s squeaky clean and can cause friction>heat between the alloy//foil/bolt when tightened.

    mikey74
    Free Member

    OK, cheers folks. I think I will first see if I can get hold of a replacement crank arm. If that doesn’t work out then I’ll give some of those suggestions a whirl.

    RobHilton
    Free Member

    I’ve had a couple of SLX bolts snap (on different cranksets) and have merrily continued with the one – now replaced with decent bolts.

    thestabiliser
    Free Member

    ifyoure lakesish I’ll tap it. frickin love tapping stuff its like magic

    mikey74
    Free Member

    Fraid not, I’m down sarff, but thanks for the offer.

    climbingkev
    Free Member

    My lbs got me a nds 105 crankarm for £22.50. I’d if be shocked if it costs more than £30. Use it as a tin foil experiment first.

    duncancallum
    Full Member

    Go see an engineering shop armed with some beer tomorrow morning bet they’ll helicoil for you

    tillydog
    Free Member

    FWIW: Helicoils make a stronger, more robust thread than the orignal tapped alloy.

    bluearsedfly
    Free Member

    If you’re ever passing Bolton I’d happily helicoil it for you.

    cannondaleking
    Free Member

    If your in lowestoft area pop in and I’ll helicoil it for you dude just bring donuts or post it and I’ll do it if your not

    Superficial
    Free Member

    Dammit you’re lucky. I bought a tap and die set and I’ve been itching to use it but the opportunity hasn’t arisen yet.

    j450n
    Free Member

    Green Threadlock.

    AlexSimon
    Full Member

    Superficial – Member

    Dammit you’re lucky. I bought a tap and die set and I’ve been itching to use it but the opportunity hasn’t arisen yet. Genuinely lol at this

    Goldigger
    Free Member

    Where down south are you? If your near Hemel I can re tap it for you..

    mikey74
    Free Member

    Thanks for the offer but I’m on the opposite side of London to you.

    igm
    Full Member

    I have an XT nds crank arm somewhere after I broke the spindle thereby trashing the drive side.

    Any use?

    mikey74
    Free Member

    I really appreciate the offer but I’d rather pursue a matching arm to begin with. Hold that thought because I may get back to you if nothing else succeeds.

Viewing 29 posts - 1 through 29 (of 29 total)

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