2G Exhaust manifold small bolt broken

[Kod]

Well I am missing from the two side bolts for the stud so I ordered that from mitsu because I can't get the actually size dimension or how ever you want to state it, but after taking heat shield off noticed one of the small ones is broken, any suggestions to go about fixing it? Have a feeling I may have to take it to a garage cause I don't own any tools for re threading / tapping if this can cause that bad of a leak with 1 missing which assuming it will.

 

[TSiAWD666]

I lost brain cells reading this.

 

[Kod]

Sorry lack of sleep from work has me out of it, but point being of my question was will this cause a massive boost leak? Hoping to have the money in a month or two to be fixed so it's all good but if it will cause massive boost leak then I am gonna have to hope I can find a friend with the tools and try it myself.

 

[BogusSVO]

If it is the little 8mm x 1.25 heat shield retention bolts there are 3, 1 in each tower on top of runners #1 and 4 and the third one in the front of the manni close to the rad.

They do not open into the mani, but are blind bottom holes.

Now if you are talking about the studs that hold the manni to the head, those are also 8mm x 1.25 x 35mm long (unless the big studs on either end of the mani those are 10mm)

Those are commonly "stress popped" and come out fairly easy if you have work room and a steady hand

 

[pimpy rider]

it will not cause a boost leak, its the exhaust manifold, it will cause an exhaust leak. an exhaust leak between the engine and the turbo will result in excess lag/ slower spool, not the same as a boost leak

 

[pimpy rider]

i have had sucess drilling into the broken bolt and using an ez out if its broken flush
i have also welded gobs of weld onto studs that stick out a bit, but not enough to get a vice grip on. you can also weld a nut or chunk of steel
no welder then ez out and a really good bit cause those bolts are hard

 

[Kod]

Yes its exhaust to head sorry for not clarifying that.

 

[bmxfelon420]

Just go to oreilly or autozone or somethign and buy a metric tap set, they're like 30 dollars. I actually took a regular drill, started drilling one and it started threading in, so i just very carefully got it back out the same way. The other two bad ones needed to be heli coiled though.

 

[Jerzm3]

If you have access to a welder, I put a nut over the broken stud, fill the inside of the nut and top of broken stud with weld, wait a few seconds, grab a wrench and start to loosen. Essentially you are creating a "bolt". This works 95% of the time.

 

[pauleyman]

60% of the time my plans work all the time.
Sarcasm aside there are no bolts. All studs on the manifolds. If any are broken they should be relatively easy to extract.