Author Topic: Helicoil forkleg?  (Read 479 times)

Offline Padsta33

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Helicoil forkleg?
« on: 06.09. 2016 11:11 »
Has anyone had any issues helicoiling forkleg to keep with the 9/16 lefty?
Haven now got my new spindle i obviously don't want to damage it.
Thanks
Paddy.

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Offline duTch

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Re: Helicoil forkleg?
« Reply #1 on: 06.09. 2016 12:01 »
 Nice one Paddo, I think my dyslexia just blew out *eek*; maybe you can re-word that?
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Offline Topdad

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Re: Helicoil forkleg?
« Reply #2 on: 06.09. 2016 13:13 »
Allow me to try Dutch-  As anyone helicoiled  a fork leg left handed thread  (8" single sided brake ) Padsta had trouble getting his old front wheel spindle to tighten so got a new one and was thinking about belt helicoiling the leg ?
If I'm right I'd be inclined to try the spindle without the wheel to see how it performs b4 thinking of helicoiling
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Online RichardL

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Re: Helicoil forkleg?
« Reply #3 on: 06.09. 2016 15:02 »
If I'm right I'd be inclined to try the spindle without the wheel to see how it performs b4 thinking of helicoiling

...but, either, without tightening or with some form of spacer in place (I presume Bob means).

Richard L.
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Offline nimrod650

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Re: Helicoil forkleg?
« Reply #4 on: 06.09. 2016 19:35 »
stainless spindles and worn threads ???

Offline duTch

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Re: Helicoil forkleg?
« Reply #5 on: 06.09. 2016 20:20 »

 Thanks Bob, then it's out of my realm, I'll stay out *smile*
Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy
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Offline jfligg

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Re: Helicoil forkleg?
« Reply #6 on: 06.09. 2016 23:32 »
I haven't seen a helicoil for this I have always repaired the old treads.  I get a old spindle and make two cuts in the end in a x pattern and use it to recut the threads.  Jeff

Offline chaterlea25

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Re: Helicoil forkleg?
« Reply #7 on: 07.09. 2016 00:21 »
HI All,
As I posted previously to Paddy,
An old or long established bicycle shop will have a left hand tap to suit,
They were use to reclaim threads on bicycle pedal cranks,
I don't think you will find a LH helecoil to suit

Works for me
John
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Offline edboy

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Re: Helicoil forkleg?
« Reply #8 on: 07.09. 2016 01:21 »
hi i have a very early set of single side-ed forks [b31]and bsa also cut a 5/16 thread for a bolt at the fork bottom, horizontal to the large thread. you would need to have the forks sitting perfectly to drill through the middle  bottom of the fork threaded part and the spindle. the spindle would be located by a 5/16 bolt acting as a cotter in the spindle thread.

Offline kiwipom

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Re: Helicoil forkleg?
« Reply #9 on: 07.09. 2016 02:04 »
hi guys. good one Dutch: ( I think my dyslexia just blew out *eek*) made me smile, cheers
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Offline Padsta33

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Re: Helicoil forkleg?
« Reply #10 on: 10.09. 2016 11:30 »
Ha ha my way of explaining is enough to give anyone dixlexia!
Thanks all for replies. I'm travelling in the highlands in Scotland right now, (van not bike) so will get stuck in when I'm home again.
Chatterlea.. I will look into your suggestion to re cut the thread, but not sure really how much it's damaged. Just wish the spindle was long enough to just chuck a nut on the end.
Cheers
Paddy (paddo) lol.

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