a4runnerfreak

Rig is in sig. Here's the deal, lost the exhaust nut on the bolt closest to the block, and screwed up the treads, so I can't start a new nut on, and no room to run a die to re-cut the threads. After looking more closely to the exhaust bolts, at the end of the threads, (see pic), I can put on a 6mm socket on the bottom of the bolt. My question is this, are these bolts all threads? Meaning, that the threads run the whole length of the bolt? Or is there a space in the threads, and if so, are the threads that go thru the pipe for the exhaust manifold flange reversed? I need to remove this bolt, so I can fix the threads to be able to thread a nut on, so I can fix the exhaust leak.

Hope some1 can understand the above.....lol!

toyota4x4907

They arent bolts, they're studs. They are threaded all the way but have a break about 3/4 way up. Not reversed thread.

Having to deal with those on all 3 of my 22res at one time or another, let me tell you, they are a PITA!!

HappyAdventure

I would just try to get the stud out and replace it. You should be able to get a new one at the parts store, I believe they are M10X1.25.

The stud threads are not reversed, if I understand you question correctly. ie the studs tighten clockwise.

Hopefully the stud will break free before the little scocket. Lots of PB Blaster!

a4runnerfreak

Aye, thats what I meant.....been on a LONG day! On my old '84 with the 22R, they were bolts. Not reverse threaded, so I can remove them same way/direction as the nuts (normally). Thanks 4907, glad some1 understood my above posted ramblings. Been trying to explain things to the G/F all day, while she was playing gopher, and asking 3 million questions....left me a lil frazzled.....lol. She tries to understand, and she does help, so I'm fortunate in that aspect!

a4runnerfreak

Yup, I hope they break free before the socket....but I have a few snap-on and craftsmen sockets.....lol. And lots of coke and PB Blaster, and they are M10x1.25

Thank you both for the replies!

skypilot

iTrader: (1)

Oh; I just did that for myself x2.

Get an Irwin stud / broken bolt kit from NAPA.
Get "free all" http://www.freealloil.com/ ... Stuff is great! Soak liberally and overnight.

They are studs, local NAPA parts drawer M8x1.25 exhaust studs with a nut and washers, if I remember right.

I had to heat the manifold over the stud to help mine out along with the free all. But it came out without trauma.

Remove the pipe first. Then force a nut on the stripped out stud, then use the Irwin reverse socket on the end of a not overly powerful impact gun. Should spin out out painlessly.

Thread in new stud with liberal amounts of anti-seize, and attach pipe as normal.

I would recomend the Sears rethreading kit M8x1.25 to clean the manifold before threading in the new stud. That ~$40 tool set has saved me more trouble than you can imagine!