I may need to do this in the near future. I have searched online about Helicoils and found a few things that were helpful.
I am confused on a few things.....
For example, lets say that i have a stripped 1/2 inch threaded hole.
1. I need to drill out the stripped hole a little larger right to make the 1/2inch Helicoil fit?
2. what size of bit would i need to drill the stripped hole out?
3. Is installing the Heli coil as easy as threading it on the tool and screwing it in?
Any other tips?
Ryan1
care to explain what a heli coil is?
It's an insert you use if u have a stripped threaded hole in metal to restore the threads. It's pretty common of a repair when you cross thread a sparkplug in the block.
Ryan1
I didn't look at the link provided, but everything alont said is correct.
You install the helicoil with the tool in the kit after its been drilled (with the correct size drill) & tapped.
Do not try & use a drill bit that's "pretty close". It won't work.
Also, make sure that when you drill & tap that you get in the hole perfectly straight. Go slow.
Also, most places only carry standard length helicoils, but there are a few places online that you can buy longer ones if you need them. Good luck.
I forgot to say the drilling/tapping procedure works a lot better if you use some cutting oil.
If you don't have any, just about any oil you have laying around will work - even your used motor oil.
The package that the helicoil comes in will tell you what size drill bit you need. I find it easier to step up the size of the bit until you get to the right size, that way you arent taking too much material at a time. Use plenty of cutting oil. When you are tapping the whole, don't just turn the tap one way until you are done, turn like a quarter turn then back it up, then turn it some more and back it up. Sometimes if you turn the tap all the way in the threads can get messed up. Good luck, its quite easy to do, just take your time, and make sure everything is straight.
Go Go OG Traction!!
/\ /\ going a quarter turn at a time and backing up a little will help keep fresh cut material from getting in the way and binding the tap. Believe me you don't want to break a tap cuz you can forget drilling it out.
