anyone used a helicoil before

cbcanada

cbcanada

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does anyone have a helicoil kit and has used one before. i have an m6 bolt which holds a valve cover that no longer threads in and i was told i need to use a helicoil. i am hoping some one can give me a hand with this
 
Not a difficult repair as long as you have enough space to work. There are plenty of tutorial videos on YouTube.
 
M6, eh? I'll check my tool box, I might have something left over from the old days.
 
No, sorry mate, no M6. Helicoil isn't the only game in town, though, it's just a brand name. Check PartSource, they used to carry a different brand, perhaps less expensive.
 
Helicoil was the first on the market.
I used mine all the time.
I even had to do a friends spark plug.
 
Tripletrouble said:
Why would you tap it oversize? If it is stripped there is nothing left to tap anyway!
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That tap is the same size as his current thread. Use this to fix any cross threading that may have happened. A tap doesn't cost much. If it is stripped, go to to the next standard or metric tap size that's closest to the original thread size.Use a helicoil if you like spending money.
 
ItIsWhatItIs said:
That tap is the same size as his current thread. Use this to fix any cross threading that may have happened. A tap doesn't cost much. If it is stripped, go to to the next standard or metric tap size that's closest to the original thread size.Use a helicoil if you like spending money.
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That tap is .3mm oversize and would make even a good thread sloppy!
Learn from this.
 
It's just a valve cover. I'd drench the bolt in red loctite, spin it in and forget it.
 
No he's not serious, red locktite is the almost permanent one. Use caution if you ever want the cover off without snapping the bolt in the hole. Then you have a real challenge.....
 
Actually I was completely serious. Although Crankcall is right maybe blue loctite would be a better choice.
 
Of all the tricks,bodges and fixes out there the helicoil is correct from an engineering standpoint, quick and easy to do and is relatively cheap. On top of that you will have a few 6mm spares should you need them. If you are on the side of the highway with oil spurting over everything the I could understand some of the replies but this is a no brainer.
 
Tripletrouble said:
Of all the tricks,bodges and fixes out there the helicoil is correct from an engineering standpoint, quick and easy to do and is relatively cheap. On top of that you will have a few 6mm spares should you need them. If you are on the side of the highway with oil spurting over everything the I could understand some of the replies but this is a no brainer.
Click to expand...

You again? he has an m6 bolt. I advised getting an m6 tap to fix any cross threading. You said something about an m6 tap being to big to tap an m6 hole. Ok, if you say so. Helicoils aren't cheap. If the thread is beyond saving, the best solution is to find the next closest largest bolt in standard or metric and buy that tap for $4.00 - Done.
 
Yes me again. You are the person that put up a link to a 6.3 mm tap. I have never heard of such a thing but I do know that is not the size needed to tap a 6mm thread. If the thread is stripped then there is no material to be cut by the tap anyway. The OP stated that the thread was stripped not cross-threaded and The best fix for this is a helicoil. With more than 40 years experience in engineering and having worked with all types of threads including roll forming, cutting and grinding on many different materials I feel I have enough knowledge to add to this thread. It is obvious that threads are not your strong suit.
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