loctite on pedal thread

[young Ed]

A friend of my had a peddle fall off, i did post about it a couple of weeks ago, but it was put together at Halfords, say no more.

had they blue-tacked it on?!
Cheers Ed

 

[screenman]

http://bicycletutor.com/torque-specifications/

Have a look pedals are beyond finger tight and a bit.

 

[young Ed]

http://bicycletutor.com/torque-specifications/

Have a look pedals are beyond finger tight and a bit.

how do i torque a pedal with a spanner?!
Cheers Ed

 

[screenman]

how do i torque a pedal with a spanner?!
Cheers Ed

You use a proper tool. and give it some umph!

Or a torque wrench and an allen key, for most types of modern pedals.

 

[young Ed]

You use a proper tool. and give it some umph!

Or a torque wrench and an allen key, for most types of modern pedals.

mine have no allen key hole thingy!
so please advise me as to the correct tool for doing this (i basically need a torque spanner!)
Cheers Ed

 

[slowmotion]

how do i torque a pedal with a spanner?!
Cheers Ed

If you have to use a spanner because you can't get a torque wrench on something, use a spring balance on the far end of the spanner to apply a known force at a known distance.

 

[screenman]

Just get a Parks spanner and give some umph!

 

[derrick]

Just give it a bit of welly, it just needs to be tight.

 

[MikeG]

You use a proper tool. and give it some umph!.......

I wouldn't. Each to their own, and all that, but as I said earlier, the action of pedaling actually tightens the pedal in the crank, not loosens it. Aluminium is a soft metal, and over-torquing a bolt into it could cause permanent damage. I advocate, as have others, just doing it up slightly tighter than you can undo by hand.

 

[screenman]

I wouldn't. Each to their own, and all that, but as I said earlier, the action of pedaling actually tightens the pedal in the crank, not loosens it. Aluminium is a soft metal, and over-torquing a bolt into it could cause permanent damage. I advocate, as have others, just doing it up slightly tighter than you can undo by hand.

I would say having a not tight enough bolt in alloy in not a good idea. Last thing I want when out of the saddle stamping on the pedals is a loose pedal.

I have seen pedals come off because they are loose, never have I seen one come off for being too tight.

You are unlikely to overtighten using a normal pedal spanner. However you may get reasonably close to the correct torque.

 

[young Ed]

I would say having a not tight enough bolt in alloy in not a good idea. Last thing I want when out of the saddle stamping on the pedals is a loose pedal.

I have seen pedals come off because they are loose, never have I seen one come off for being too tight.

You are unlikely to overtighten using a normal pedal spanner. However you may get reasonably close to the correct torque.

yep, my dad had a pedal come out on his bike as a child and his manly bits landed straight on the top tube! ouch
Cheers Ed

 

[ayceejay]

If there is a dead spot on the pedal spindle it might undo, I think the problem is with the pedal rather than its fixing to the crank.
What pedals are they Ed?

 

[screenman]

Try this, put a pedal in the crank a few turns, about half way in will do. Now turn the cranks by using the pedal, if it tightens itself change the pedal or at least fix the bearings.

 

[young Ed]

If there is a dead spot on the pedal spindle it might undo, I think the problem is with the pedal rather than its fixing to the crank.
What pedals are they Ed?

cheap sh*te plastic flat ones!

Try this, put a pedal in the crank a few turns, about half way in will do. Now turn the cranks by using the pedal, if it tightens itself change the pedal or at least fix the bearings.

will do!
Cheers Ed

 

[ayceejay]

Bingo!