Stripped bolt head at over pipe/front pipe connection, what now? :(

[Rapiddan45]

Same one on mine came cross threaded from the factory. I just snapped it off since I had all new parts. Then made my way to the o2 sensors since I was putting on my OFH, one of those was also cross threaded from the factory as well so, had to get a new o2 sensor. Really sad considering that's how it came from the factory.

[Teclis]

That shit happened to me too, at the exact same location, probably an over tightening from the factory.. But I cut it off, then drilled it out with pure titanium drill, then just replaced the bolt and nut

Good luck..

[Hotrodheart]

No choice, sell it.

[BBYZILA]

update: i brought it to a shop, they welded a head onto it, heated it up, took it out, along with the threads , so they retapped it to a bigger diameter, and then just put in a new bolt and nut. Also charged me 70$. lesson learned...


going to get my headers professionally installed.

[civdaddy]

Originally Posted by BBYZILA

update: i brought it to a shop, they welded a head onto it, heated it up, took it out, along with the threads , so they retapped it to a bigger diameter, and then just put in a new bolt and nut. Also charged me 70$. lesson learned...


going to get my headers professionally installed.

Don't count yourself out. Maybe you just need a better collection of tools to make the job easier? Having be right combo of sockets, wrenches, extensions, ratchets ect, can make the job much easier.

[troek]

stripping a bolt was either incorrect wrench size, cheap wrench, or a bolt that was so stuck, something had to give. i think you can tackle the header your self, its pretty straight forward.

[bcj]

Six point sockets. Every time.

[Packofcrows]

Originally Posted by NOHOME

There is an app for that...

dafuq is that tool??? I messed up some nuts (weather/me over tightening 'em) and cant seem to get them off! Thats a bad@ss tool.

[bcj]

Nut Splitter

Similar but different

[Packofcrows]

Ordered the one in vid off of e-bay. $15 w/ shipping. I'll let you guys know how it is when it gets here!

[NOHOME]

Originally Posted by Packofcrows

dafuq is that tool??? I messed up some nuts (weather/me over tightening 'em) and cant seem to get them off! Thats a bad@ss tool.

google up "Nut Breaker" and you will find a ton of examples. Pretty cheap at the discount tool places, I paid like $15 for the ones I have. They come in a few sizes.

I do a fair bit of Brit car restoration and between heat and these things I manage to get most things apart without breaking them.

The person who posted "cheap wrenches or wrong size wrenches was also right

[dutchman1]

Glad you got it taken care of, if you don't have the tooling it's probably no t cost effective to do it yourself.


For future reference, there's really about a hundred things you can do. There's really no magic way to get stuck hardware apart without effort, you just have to be more stubborn than the thing you're trying to get apart.


In your situation my first attempt would be to heat the nut up red hot (concentrate the heat on the nut, not the stud), and then put some vice grips on the nut and it should spin right off. The heat will expand the nut causing it to loosen. Rather than vice grips, you can also take a pointy chisel or punch, and try to hammer the nut in a circle. Hit the face of the flat kind of close to a point in the direction you want to turn the nut. You'd be surprised how effective that is, if you can get a good swing at it, it acts like an impact.


If you have a good socket selection, you can also sometimes hammer on a 12 point socket, one size smaller (metric or standard, whatever fits) and grab the nut that way.



You can also take a die grinder with a burr or cutting disc (whatever fits), cut the thing off, and then drill the stud out of the header flange.


As said above, in terms of not rounding it to begin with, wrench quality is important here. Better wrenches have much tighter tolerances and harder steel so they flex less, plus they are designed to grab the flats of the hex rather than the points. This is why you see the pro guys shelling out $500+ for a set of wrenches from sk/armstrong/snapon/whatever.

[MJones_RB]

I bought these from Amazon and they saved my butt a few times already.

[ermax]

I'm trying to understand what you stiped. First of all there is no "bolt". The overpipe has a threaded hole in it. There is then a threaded stud which screws into the overpipe. Then you have a nut that screws onto the stud. So which is stripped? The nut, the stud or the overpipe itself? If it's the nut, replace the nut. If it's the stud, replace the stud. If it's the overpipe then drill it out and replace the original stud/nut with a bolt and nut.

Here is the stud:
https://parts.toyota.com/p/STUD-BOLT...U00301117.html

Edit: Nevermind, I see you took it to a shop.