can you get cranks rethreaded ?

[eloopnai]

heres my new skool cranks funn hooka mx
 i have cross threaded the pedal and in time become loose and as you can see the thread has now gone
can this be repaired ? if so where does one get it fixed   

[pickle]

you sure can ian......but i wouldn't know where to suggest you get it done....sorry 

[eloopnai]

thats good news im half way there just gotta find out where now
cheers 

[thecrooch]

probably be cheaper just to replace.....

[eloopnai]

spoil sport 

its just an idea i had as there pretty much new and was on my harrys kuwi there 175 so thought i could get em repaired and painted gold for my build .
 a new set is only £55 plus the cost of getting them painted by dan
 so i wouldnt of thought it would cost that much to repair so id be quids in if i can find out where

[pickle]

i once got a Shimano XT drive side arm re threaded by a mate of mine.....worked a treat for XC riding but i wouldn't want to do any jumps or owt with it.

as Crooch said........have a look round and grab a new set?

[jT Racing]

if it's an ali crank, pick a pedal you like and trust and araldite(or other epoxy resin) the fecker in

[diesel]

I had one done at Halfords for £10

I wouldn't recommend it for riding after though - Just show

[SteveG]

I was going to suggest a helicoil which is basically a spring looking thing that screws into a slightly larger tapped hole. I don't know if pedals are a special thread though.
Try a small engineering company they might be able to help.
If the helicoil doesn't work then they might be able to tap a larger thread in the arm and make a threaded bush up to bring the thread back to size.
It might be possible to get it welded and re-tapped if its something rare, but anything will end up costing a bit.

[thecrooch]

I was going to suggest a helicoil which is basically a spring looking thing that screws into a slightly larger tapped hole. I don't know if pedals are a special thread though.
Try a small engineering company they might be able to help.
If the helicoil doesn't work then they might be able to tap a larger thread in the arm and make a threaded bush up to bring the thread back to size.
It might be possible to get it welded and re-tapped if its something rare, but anything will end up costing a bit.

personally i agree this could work, but of all the stress areas on a bike you want confidence in is the pedals and having them re-threaded wouldnt give me that!

Ian there are plenty of cheap relacements knocking around.....  Think quad paul has a set out of his Haro 24.

[SteveG]

If it's done properly a helicoil (if you can get the size) is better than just a thread in aluminium.
On a lot of aircraft stuff they are actually fitted to new parts. The same goes for the threaded bush. You would need to stick it in with proper loctite or make it so it screwed in from the back and had flats on it to hold with a spanner.

As you say though it isn't worth doing unless it's rare though as it will cost to get it done properly.

[jT Racing]

just epoxy the pedal in, it's strong enough. they use it to stick the wings on aeroplanes, and they used it to stick a bmx frame together, a vitus. easy peasy.

[eloopnai]

cheers for the advice fellas think i will leave it and purchase some new ones
right then off to the shed to find some bits to sell 

[fouronethreeoh!]

Remember pedal threads are left and right hand. Finding an engineering shop with 9/16 left hand helicoils may be a bit tricky.
But not impossible. Pedal taps are available.

http://www.parktool.com/products/detail.asp?cat=27&item=TAP%2D6

Bushing the hole then re tapping is an option, similar to helicoiling.

[jT Racing]

https://www.cyclestore.co.uk/productDetails.asp?productID=14776&catID=769

[moanjam]

helicoil defo be ok