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[Closed] Which loctite for crank arms?

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[#10223613]

Laddos crank arm keeps coming loose and literally falling off. Is it just a Google for loctite blue? It needs a new bb soon so I don't want anything too weldy! TIA


 
Posted : 13/09/2018 8:45 pm
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Go for red, it's more for items that aren't often removed. There is a version for taking up the slack in bearings (yellow) which might do if the red doesn't work.


 
Posted : 13/09/2018 8:51 pm
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You probably need new cranks.

If the spline or taper is damaged no amount of loctite will hold it on .


 
Posted : 13/09/2018 9:26 pm
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What Al said


 
Posted : 13/09/2018 9:33 pm
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yeah, the force even a kid will put through a crank would defeat anything other than actual "weldy", I reckon

When I did mine once (the old octalink ones) I wondered about putting some sort of bolt right through the middle of the crank axle, like those headset tensioners - figured maybe with a nice nyloc bolt on that might just hold it.ย  DIdn't fancy mashing my ankle on the bolthead though so I got rid and replaced.ย  I suppose if you were good you could make a countersunk version but then if I'd been that good I'd prob not have ****ed my crank


 
Posted : 13/09/2018 10:00 pm
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407?


 
Posted : 13/09/2018 10:15 pm
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What cynic al said.


 
Posted : 13/09/2018 10:19 pm
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Mmm this is an old octal8nk one. What tools do I need to butcher it out?


 
Posted : 14/09/2018 5:48 am
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You just need a standard B.B. tool. New octalink B.B. can be got for less than a tenner


 
Posted : 14/09/2018 7:50 am
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chances are that it's the crank rather than the BB


 
Posted : 14/09/2018 8:04 am
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It'll definitely be the crank not the axle.


 
Posted : 14/09/2018 10:53 am
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aluminium crank vs heat treated hardened steel BB

only gonna be one winner


 
Posted : 14/09/2018 10:56 am
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How tight are you doing up the bolts?

I've never used threadlock, run octalink a lot and never had a bolt come loose.


 
Posted : 14/09/2018 11:34 am
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issue being if its come loose even once and you have kept riding it till it falls off

it aint going to stay tight going forward.


 
Posted : 14/09/2018 11:52 am