How To :- Thread Repair


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Post Thu Jan 31, 2013 1:17 pm

How To :- Thread Repair

The main tools you will need.

Thread Repair Kit designed for the correct size your repairing (ie M6)
Drill
Tap Wrench

Then plus any other tools for getting access to the area for repair.....

so for about £7.50 you can get yourself a cheap helicoil style thread repair kit from ebay like this

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i'm needing to repair the thread on the main bolt that holds the side fairing to the frame, as this has been damaged since b4 i had the bike and never fixed it properly.

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so off with the panel (excuse the mess but the scottish weather isnt forgiving on me bike lol)

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so as you can see the threads are pretty much gone

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since the hole doesn't go all the way through the frame you want to measure how deep you want to go so you dont damage the frame and start drilling into it, if you have a hole that goes all the way through then you dont need to worry about this.

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next transfer that measurement onto the drill bit supplied in the kit

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and then drill out the hole

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next clean it out and then use the tap to create the new threads for the helicoil and then clean again

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next grab your helicol and the insert tool and then screw it into the new threaded hole to reduce the thread size back down to the orig bolt size

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you want to screw the coil in to just below the surface of the repair

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once that it is and your happy with it, grab the tab breaker bar and push it in to break off the little tab that the insert tool uses to grip the coil to screw it in, if you find that the breaker wont fit then you can use something like an allen key to push in to snap the tab off

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so there you go we now have a new threaded hole to take the orig M6 fairing bolt

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all what is left to do is to put everything back on and your done

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Last edited by blagger on Thu Jan 31, 2013 1:28 pm, edited 2 times in total.
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Post Thu Jan 31, 2013 1:22 pm

Re: How To :- Thread Repair

Nice one matey, that will come in very handy for a lot of people who are unsure of how to fit a helicoil
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Post Thu Jan 31, 2013 1:35 pm

Re: How To :- Thread Repair

its not a hard job to do but as you say it will give a little reinsurance to ppl who haven't done it before and can see how they are fitted and how the repair works out, ok some ppl will just say drill and tap a larger hole and stick the next size bolt in but in some cases like a fairing kit you want to keep it all the standard size so this gives them an option to do that and keep the orig bolt. i would like to add that it would be worth while to use a new fresh bolt after the repair is made so that he old bolt that might have damage from the hole doesn't damage the new thread. i haven't done this at this point as i dont have a spare bolt like the one i'm replacing but i will do at some point and defo would if there was more load on that fixing point
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Post Thu Jan 31, 2013 2:21 pm

Re: How To :- Thread Repair

blagger wrote:
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Did you have to buy that tool seperatly/ what's it called..........I never got that with my repair kit!
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Post Thu Jan 31, 2013 2:28 pm

Re: How To :- Thread Repair

yes you have to buy a tap wrench, lucky i had one in a shitty tap and die set i have
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Post Thu Jan 31, 2013 3:17 pm

Re: How To :- Thread Repair

armi , can u do a write up about when ya done yours :lmao: :lmao: :lmao: :lmao:
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Post Thu Jan 31, 2013 7:01 pm

Re: How To :- Thread Repair

Nice little write up, i always done as you said, tap it and use a bigger bolt. Didn't realise how easy the helicoil was. Thanks :)

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Post Thu Jan 31, 2013 7:09 pm

Re: How To :- Thread Repair

aye most of the time you can get away with just doing that but then sometimes its handy to try and keep it orig size
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Post Thu Jan 31, 2013 7:24 pm

Re: How To :- Thread Repair

And makes it easier to remember what size bolt it is etc when you've forgotten where you put it lol

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Post Thu Jan 31, 2013 7:34 pm

Re: How To :- Thread Repair

:grin: thats very true
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Post Thu Jan 31, 2013 7:40 pm

Re: How To :- Thread Repair

Dead easy repair, just remember to lube the tap to prevent it from tearing the material to be tapped, and also relieve the chips by giving the tap a reverse turn every 2 or 3 revolutions.
Btw you can buy different lengths of helicoil eg, 2 x dia, 3 x dia ect if you need a longer thread repair.
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Post Fri Feb 01, 2013 10:27 am

Re: How To :- Thread Repair

herbalisticharry wrote:armi , can u do a write up about when ya done yours :lmao: :lmao: :lmao: :lmao:


I was gonna but it went tits up :63:

esxr7.5 wrote:Dead easy repair, just remember to lube the tap to prevent it from tearing the material to be tapped,


Now you f%*king tell me :17:
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Post Fri Feb 01, 2013 9:21 pm

Re: How To :- Thread Repair

herbalisticharry wrote:armi , can u do a write up about when ya done yours :lmao: :lmao: :lmao: :lmao:


Armi wrote:I was gonna but it went tits up :63:



:whistle:

:lmao: :lmao: :lmao: :lmao:
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Post Fri Feb 01, 2013 9:50 pm

Re: How To :- Thread Repair

Armi wrote:
esxr7.5 wrote:Dead easy repair, just remember to lube the tap to prevent it from tearing the material to be tapped,


Now you f%*king tell me :17:


Now no sort of lube will stop them chunks, me thinks you mistook a hammer for a drill!! :dunno:
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Post Fri Feb 01, 2013 10:40 pm

Re: How To :- Thread Repair

I always use Loctite bearing lock on helicoils. Two reasons

It lubricates it on the way in

When the bold gets old and furry it will bring the helicoil out with it on occasion
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