Helicoils / Whats his name??? [Edit] Sickpup, question..

[Barry_M2]

Anyone remember the name of the guy on here of sell's the Helicoils?



Edit...
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[Gazdaman]

Sickpup

Don't forget the first p in his name.

Gaz

[Barry_M2]

Thats the fella....

I'm managed to strip a thread on one of my cam bearing caps, need to get it sorted, wandered what I need to do as I've not done this before?!

Cheers
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[Gazdaman]

You need to have a helicoil fitted. So take the head to a local place and just get it done.

Sickpup's in London.
Other than that, I don't know, I've never had one done, or even seen one.

Good luck

Gaz

[Barry_M2]

I'm not taking it anywhere, I want to do it on the bike, I'm not taking the head off again and throwing away a brand new £60 head gasket.

I'll either do it myself or get someone out to do it if it too much of a job.


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[G]

Helicoils are just an over-sized tap with an insert that then reduces the thread size back to the original.

Kits cost from something like £12 upto £afairbit for big ones.

Google found me this guide:
https://www.roadstarmagazine.com/modules.php?name=News&file=article&sid=233

I've done the before with no problems.

[Ariel Badger]

Is it a plug hole that is stripped out?
If you do it in position you will end up with swarf in the bore and this may well fuck your engine,
There are better inserts than Helicoils for plug repairs IMHO.
Take it to a machine shop and get their advice, fitting your first helicoil to a cylinder head without the correct machinery (Pillar drill with inclining table or even better a vertical miller) could be a very expensive way of saving money.
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[Barry_M2]

[Ariel Badger]

[Barry_M2]

[Gazdaman]

M10 is 10mm, M12 is 12mm IIRC

You may have to worry about pitch, which is something like how many 'ridges' over a cm. That's almost certainly wrong, but it's something like that.

Gaz

[Barry_M2]

[Pte1643]

You measure the "Overall" outside diameter.

[sickpup]

If its a cam cap it depends which part is damaged.
If the thread in the head it will likely be an 6mm thread, if the top of the cap where the rocker cover bolts down 6 or 7mm.

If in the head a lot of prep work will be needed to stop swarf getting into the gubbins, basically mask the whole head off.

There is now a new type of helicoil kit available called a V coil. The kit is a lot better quality than the classic Helicoil kit but costs in the region of £30.

I can do these repairs in situ as you need but St Albans is a bit to far for me.