Helicoils and exhaust studs

[HD]

Basically a while back I stripped the thread on one of the exhaust manifolds. I used the bolts on the bike and tightened them up too much and yeah, you know the rest.

Now where can I buy a helicoil kit, what does it comprise of, do I need any other tools and how much is it?

Also, would exhaust studs be more beneficial for me? If so, how do I go about it? I'm guessing buy a large length of threaded bar, cut it to length and wind it in? But how do I tighten it up?

Thanks
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Rusty '02 Vito Camper + CBR600F3

[DrDonnyBrago]

[HD]

Your the man donny! Anywhere that I could buy them in person as its pretty urgent. Reason I asked this is cos the bolts have worked loose and are blowing a bitch at the manifolds. The studs and the kit/drill bit I mean? And dies the kit come with instructions?
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Rusty '02 Vito Camper + CBR600F3

[orac]

https://www.machinemart.co.uk/shop/search/filter/armacoil/type/any/page/1

i used one to repair thread in a cranckasem dunno if they still come with it but mine had the correct drill too
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Current rides - 2016 Triumph Street Triple Rx, 1994 Suzuki Bandit 400 VM, TGB 204 Classic 125cc
"with nothing left to lose, there is everything to gain. It's not the size of the dog in the fight, it's the size of the fight in the dog"

[Serendipity]

A while ago I posted a thread with a few pictures after I helicoiled an exhaust stud.

https://www.bikechatforums.com/viewtopic.php?t=149709

May help you get an idea of what's involved.
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2016 CBF1000F - Commuter heaven | 1994 CBR600FR - Awaiting defibrillation

[DrDonnyBrago]

Machine mart as posted above are pretty good for tools and you can go in store to buy it, probably find the same thing cheaper online but if you need it now then it makes no difference. I don't know if screwfix and toolstation sell them but they are everywhere nowadays even if the prices aren't quite so good.

If you take an old stud to a bike dealership then they should have something the same size to supply you with, or again look it up and buy online. Make sure you know both the diameter (i.e. M8 = 8mm) and the thread pitch (i.e. M8 x 1.25 = 1.25mm pitch) of the studs and buy a repair kit accordingly.

Of course if you go with threaded rod then head down to a half decent nut/bolt place or engineering supplies place and get some threaded rod. Only thing is be sure not to buy some cheap shit cheese metal, grade 8.8 or higher high tensile steel would be a good bet.


In addition to the kit and studs, you will need something to turn the tap (ideally a tap holder), a drill (having had a look online, possibly a drill bit too, depending on the kit), cutting oil (3 in 1 is ok) and a steady hand.

Check if your kit contains the drill bit, if not then it should say on the instructions what size hole you need to drill for the tap.

[HD]

Well, turns out I didn't need to helicoil it, the thread had only been stripped about 8mm so just put a longer bolt in. Definitely gonna get hold of some studs though cos I'm not really happy with it.

Cheers for the advice though fellas!
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Rusty '02 Vito Camper + CBR600F3