Helicoil re-thread question. Turbo bolts stripped

[Kdouglas89]

3/4 Manifold to turbo threads are stripped. Been looking into one of those Heli-coil kits. From what I understand I need 10 x 1.25 kit, and a 11/32 drill bit?

2nd - Do I just drill out old thread, tap the holes, and insert the helicoil fitting with some loctite?

Thanks

 

[dsm199994]

I had the same problem. Lucily I only had one that was stripped. I helicoiled it and only tourque it to 35lb instead of the 47lb spec. Its been three months and seems fine. Just recheck tourque specs on the 4 bolts after a few heat cycles

 

[Kdouglas89]

I had the same problem. Lucily I only had one that was stripped. I helicoiled it and only tourque it to 35lb instead of the 47lb spec. Its been three months and seems fine. Just recheck tourque specs on the 4 bolts after a few heat cycles

You didn't help me at all

 

[dsm199994]

sorry bolt is m10x1.25 most helicoil come as a kit with the drill bit in it already at least the ones I've used

 

[Batman272]

Yes if you go to your local harbor freight there is a tap and die kit there for $14 bucks. Buy it. Then find out what size hole you currently have and re thread it. Do not use a regular drill bit cause you might bore the hole out to big and will have fitment and clearance issues. Then go to your local o'rielys or ace hardware and buy the size coil and stud for the hole you just bored and some loctight. I'm sure you can figure it out from there. I had to do my studs for my manifold and she is working just fine.

 

[dsm199994]

But yes you drill stripped threads then tap with the supplied tap, make sure you use a cutting oil can be picked up at most tool stores. Then insert heilcoil into threads you cut and bend the little assit tab on the ccoil inward. There you have a repairs thread, now pit your turbo on and go boosting

 

[SaulHudson]

Use the twist drill specified with the helicoil set you use. It will specifiy a fraction or decimal drill. They are different and you need the exact size it says.

And yes procedures are close here is a goodduide
http://www.3wheelerworld.com/showth...Threads!!!-A-how-to-on-Heli-Coil-installation

 

[Roberti 2G]

Dont just use a m10x1.25 tap. It is special tap that comes with the kit. I just did a few on my old hotside and its kinda a PITA. But yes just drill out and tap with STI tap the kits come with Standard Thread Insert. Insert heli coil with special tool.

 

[Mello]

Just go here http://www.mcmaster.com/#helicoils/=sap359. They will have everything you need to know & you can buy it from them too.

 

[foxman97]

I know your asking about helicoils but have you looked into timeserts? I know the price can be a detergent but I can say having used timeserts on my hotside, and helicoils on my old truck, I find the timeserts far superior and worth the extra $40 or so.