Broken exhaust stud removal

[JHZR2]

Is the tap labeled as M8x1.25 STI?

Yes it’s the one that came in the kit.

 

[JHZR2]

I don’t think it is but doubt everything

Absolutely.

Fortunately my lovely wife was willing to go to Advance Auto to get their set.

Like the Helicoil set, it also has a Chinese tap. But a better one. It has a center drill in the top, and a better taper.

Got it set up like I wanted originally.

And it caught quickly and immediately with the “grip” and feel that I’d expect.

Worked perfect.

You just can’t make this stuff up!!!

 

[Pablo]

Junk tap!!

 

[JHZR2]

Junk tap!!

From the $$ branded Helicoil kit.

Maybe I’m not the best craftsman, but how can people do anything in real life with junk like this?

Back to Amazon it goes!

 

[Pablo]

From the $$ branded Helicoil kit.

Maybe I’m not the best craftsman, but how can people do anything in real life with junk like this?

Back to Amazon it goes!

I wonder if fake

 

[Trav]

Yes it’s the one that came in the kit.

Look at the markings on that tap, it did look a little worn. Possibly swapped out a regular M8 for the STI, a sleazebag to get more expensive taps if is not an STI.

 

[D60]

Yes it’s the one that came in the kit.

Tap drill size has to be close to minor dia of the tap. Measure that (between the threads) with the thin, lower part of your caliper jaws. If it's greater than .328" something isn't correct

 

[D60]

Look at the markings on that tap, it did look a little worn. Possibly swapped out a regular M8 for the STI, a sleazebag to get more expensive taps if is not an STI.

A true M8 would be much smaller than an M8 STI tap as major dia would be .315"

 

[Trav]

Yes, I don't know what I was thinking, it may be another non STI size?

 

[JHZR2]

Look at the markings on that tap, it did look a little worn. Possibly swapped out a regular M8 for the STI, a sleazebag to get more expensive taps if is not an STI.

Appears legit or counterfeit.

 

[Pablo]

Appears legit or counterfeit.

View attachment 345867

I now suspect bad metallurgy

 

[JHZR2]

A true M8 would be much smaller than an M8 STI tap as major dia would be .315"

But a helicoil is larger than M8. M8 is the ID thread. The cut needs to be for something more along the lines of 9-10mm 10/25.4=0.393”

 

[Exhaustgases]

Yeah it was nice in the days past when a friend got a bunch of helicoil kits and inserts for pennys on the dollar, from a big auto parts outfit closing it all out, to shut the doors. And no made in China then. Oh and that does not look like an HSS tap, yeah cheap junk.

 

[JHZR2]

Yeah it was nice in the days past when a friend got a bunch of helicoil kits and inserts for pennys on the dollar, from a big auto parts outfit closing it all out, to shut the doors. And no made in China then. Oh and that does not look like an HSS tap, yeah cheap junk.

What bugs me is that it isn’t one of the $9.99 Amazon kits, it’s the name brand helicoil kit.

I did buy it on Amazon. Of course it came from a third party and is too late for return. Very annoyed.

Will probably send a complaint to Helicoil themselves.