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RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  Stripped stem threads
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Author Topic: Stripped stem threads  (Read 515 times)

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Offline laidback

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Stripped stem threads
« on: February 02, 2014, 08:11 PM »
Evening all!

Well the team master build is well underway. However i was bolting up the bars today and noticed that two of the threads in the bolt holes are stripped "help" They are completely smooth on the inside.

It's an aluminium Haro Team stem.  What are my options?? I'd like to avoid using bigger bolts, as i'd have to mess around with the stem cap holes.  Get someone to alloy weld them and re drill/tap?  Or redrill and Heli- coil?

I'm pretty handy, but i think this job might have to be farmed out to someone else.

Any suggestions from you guys is greatly appreciated. Second build, second fooked stem :2gunsfiring_v1:

Offline john4130

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Re: Stripped stem threads
« Reply #1 on: February 02, 2014, 09:09 PM »
i would say heli coil, you wont see them once the stem caps on anyway.

Offline HUTCHMAN

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Re: Stripped stem threads
« Reply #2 on: February 02, 2014, 09:12 PM »
+1

Offline oldschoolace

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Re: Stripped stem threads
« Reply #3 on: February 02, 2014, 09:12 PM »
Heli coil  :daumenhoch:
Sixteen thirty-two. What is that? A year?   No, it's your top score on Pole Position.


Offline Chapperz

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Re: Stripped stem threads
« Reply #4 on: February 02, 2014, 09:36 PM »
Any decent engineering shop locally should be able to do it cheaply. If you can drill and tap though the kits are cheap enough.
http://www.ebay.co.uk/itm/25-Piece-Helicoil-Thread-Repair-Kit-M8-x-1-25-x-10-8mm-/271245164223
The choice is yours.
Cleethorpes Old School Ride Out 2018. 14th July 2018

Offline laidback

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Re: Stripped stem threads
« Reply #5 on: February 02, 2014, 10:13 PM »
Thanks chaps, might give it a go myself.. what's the worst that can happen? ;D

Offline laidback

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Re: Stripped stem threads
« Reply #6 on: February 02, 2014, 10:20 PM »
Does anyone know the size i need for standard haro stem bolts?

Offline stidds

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Re: Stripped stem threads
« Reply #7 on: February 03, 2014, 11:22 AM »
Heli-coil definitely, not the hardest job in the world, you just have to be able to drill straight (use a pillar drill).



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