Heli-coil question

FAQ tech questions, please check if the answer to your question is in here before posting elsewhere.
Jxmiddle
registered user
Posts: 117
Joined: Sun Nov 25, 2012 10:48 pm
Main scooter: GP250 69 targa twin
Location: Tonbridge, Kent
Contact:

I've got a heli-coil that's gone in a Lammie exhaust stud. The nut kept turning and it appeared the nit was turning the stud in the hole. When I took it out the heli-coil was wrapped round it. Advice appreciated.

Can I just replace the heli-coil with another one the same size?

Do I need to take the engine out to do this?

I've never put a heli-coil in before (though I have tapped thread, is experience necessary?

Is a heli-coil the best thing to use or is there any alternative?

Cheers

John
mick1
registered user
Posts: 1292
Joined: Sun Dec 04, 2011 7:43 pm
Main scooter: Li Avanti 225
Location: York
Contact:

Might be worth cleaning the hole out (Ooooh errr !!) and trying some JB weld. They claim it can be drilled and tapped so maybe worth a go. Heli-coils do work but i've never been wholly confident with them.
Rally220
registered user
Posts: 86
Joined: Sat Aug 10, 2013 8:30 pm
Main scooter: Lambretta S2 TS1 240
Location: Liverpool
Contact:

Helicoils are really only suitable for 'light' type holding, they are after all just a piece of coiled wire. The best way to fix it is with a Time sert kit, not cheap but you get what you pay for.
http://www.ebay.co.uk/itm/TIME-SERT-NEW ... 43c0a9dc80
Jxmiddle
registered user
Posts: 117
Joined: Sun Nov 25, 2012 10:48 pm
Main scooter: GP250 69 targa twin
Location: Tonbridge, Kent
Contact:

I've whipped the barrel off and taken it to a local firm which can put in timeserts. See how that works.

Cheers.
Post Reply Previous topicNext topic
  • Information
  • Who is online

    Users browsing this forum: No registered users and 17 guests