I am looking to rethread a spark plug thread, but which helicoil is recommended. Please let me know with details of where to purchase one; Does anyone have any recommendations regarding this?

Thanks

Greg

Have a butchers on Ebay, loads of them advertised on there. I have got a couple of sets from various dealers, (usually the cheapest, :-) ) and they have been fine. HTH Ray

This is a full insert rather than a classic helicoil

http://www.agriemach.com/product_info.php?cPath=0_64&products_id=722
Rescued attachment THREADER.jpg

Use the insert or similar as above. Do NOT use a helicoil in a spark plug thread as it may wind itself into the cylinder and it's bye bye engine!

[Edited on 6/7/10 by Strontium Dog]