Advertise on Bikeforums.net



User Tag List

Results 1 to 6 of 6
  1. #1
    Senior Member
    Join Date
    Mar 2007
    Posts
    521
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    loctite crank bolts?

    should i loctite my crank bolts? i was having trouble with one coming loose there for a while. it just came loose one day and kept having problems for a while. then it stopped after a while, after i had screwed up my crank a bit.

  2. #2
    Senior Member MudPie's Avatar
    Join Date
    May 2004
    Location
    Southern California
    Posts
    1,874
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by goldfishin View Post
    should i loctite my crank bolts? i was having trouble with one coming loose there for a while. it just came loose one day and kept having problems for a while. then it stopped after a while, after i had screwed up my crank a bit.
    In general, there is no need for a thread locking compound on your crank bolts if you tighten the bolts to the proper torque value, ~30ft-lb. You cannot reach this torque with a multi-tool or a tool that fits in the palm of your hand. In fact, I always grease my crank bolts.

    What kind of bottom bracket interface do you have (ISIS, square taper, Octalink)? If you have square taper and the crank arm loosened while riding, you might've damaged the crank arm.

  3. #3
    Senior Member Retro Grouch's Avatar
    Join Date
    Feb 2004
    Location
    St Peters, Missouri
    My Bikes
    Rans Enduro Sport, Hase Kettweisel Tandem, Merin Bear Valley beater bike
    Posts
    23,105
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    MudPie's right.

  4. #4
    cab horn
    Join Date
    Jun 2004
    Location
    Toronto
    My Bikes
    1987 Bianchi Campione
    Posts
    28,298
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Yet manufacturers still apply loctite to their crank bolts by default. Explain.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  5. #5
    Perineal Pressurized dobber's Avatar
    Join Date
    Oct 2003
    Location
    In Ebritated
    Posts
    6,557
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by operator View Post
    Yet manufacturers still apply loctite to their crank bolts by default. Explain.

    Please explain your statement. How have you determined that manufacturers apply loctite to their crank bolts?

    If this was the case, why don't they include the necessary material or instructions with their products?
    This is Africa, 1943. War spits out its violence overhead and the sandy graveyard swallows it up. Her name is King Nine, B-25, medium bomber, Twelfth Air Force. On a hot, still morning she took off from Tunisia to bomb the southern tip of Italy. An errant piece of flak tore a hole in a wing tank and, like a wounded bird, this is where she landed, not to return on this day, or any other day.

  6. #6
    cab horn
    Join Date
    Jun 2004
    Location
    Toronto
    My Bikes
    1987 Bianchi Campione
    Posts
    28,298
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by dobber View Post
    Please explain your statement. How have you determined that manufacturers apply loctite to their crank bolts?

    If this was the case, why don't they include the necessary material or instructions with their products?
    Because when I take out the bolts on any bike out of the box, they are loctited? A bike which has a generic manual that covers all their models is going to include something as specific to pertain to crank bolts?

    The same manual that says riding at night is dangerous and should not be done?

    Loctited bolts implies that manufacturers must also include with it documentation and 'material'? How does one arrive at this conclusion?
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •