stripped out threads

[buickGN3:16]

the threads are shot on my precision turbo on the exhaust side, i was wondering if it can be re threaded with a tap kit or how can i do this? Thanks


Posted from the TurboBuick.Com mobile app

 

[dartguy340]

You can pick up a heli-coil kit, they usually come with everything
you need to do the job--drill bit, tap, insert and instructions.

 

[KEVINS]

Maybe Bison can fix it if you want to send it to him..

ks

 

[salvageV6]

If you can clean it up a bit with a tap, install studs in there, and use nuts with lockwashers for the downpipe.

Then the threads only have to work once.

 

[buickGN3:16]

What keeps the studs from turning though? But i like that idea


Posted from the TurboBuick.Com mobile app

 

[bison]

Stainless steel tread insets are the way to go. A drill press is adequate. If any bolts are broken off milling them out is the best option.


Posted from the TurboBuick.Com mobile app

 

[buickGN3:16]

No broken bolts, just need to pull the turbo back off & do the work..


Posted from the TurboBuick.Com mobile app

 

[salvageV6]

Here's a pic. of some GM intake studs my local mechanic had that worked out well for me.

They install with a reverse torx socket wrench over the end, I used neverseize on them.

Nuts with integral washer type surface came right off every time I had to pull the downpipe off to swap the Random Tech. cat. back on for emissions.

Luckily I don't have to do that anymore, our cars are too old for emissions here in CT.

 

[buickGN3:16]

i like that idea for sure where the stud stays put in the turbo & the nuts do all the work. what keeps the studs from turning tho when the nut starts to tighten down?


Posted from the TurboBuick.Com mobile app

 

[salvageV6]

They are socked down all the way full into the turbos threaded recess.....

They can't turn anymore to tighten them.

In this case a Precision housing on a PTE51.

Even simply taking the nut off doesn't unscrew them either.

 

[buickGN3:16]

Ok but some of my threads are stripped out so i need to heli them first correct? & then run the studs ur talking about in there?


Posted from the TurboBuick.Com mobile app

 

[salvageV6]

I would use a tap first see if you can get a few good threads at the end or bottom of the turbo housing.

You would only need 3-4 good threads at end of the housing, depends on the damage you have whether or not that will work out.....

Then install studs screwed all the way in and use nuts/lockwashers or composite nuts with flange like I used.

Should only need 20 ft./lbs. torque max. on them each to hold the pipe on.

If you have to heli-coil them you could use new bolts at that point or studs.

 

[buickGN3:16]

ill give it a shot, thanks for the info


Posted from the TurboBuick.Com mobile app