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Old 06-14-08, 11:36 PM   #1
goldfishin
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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.
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Old 06-15-08, 12:01 AM   #2
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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.
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Old 06-15-08, 07:12 AM   #3
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MudPie's right.
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Old 06-15-08, 07:28 AM   #4
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Yet manufacturers still apply loctite to their crank bolts by default. Explain.
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Old 06-15-08, 07:57 AM   #5
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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?
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Old 06-15-08, 08:23 AM   #6
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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?
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