Exhaust manifold studs

[HK1837]

All

How do you easily remove these suckers when they break off. One each side busted off. Vice grips no chance (already tried). Do you drill them out?

[RodneyHZ253]

I would try to drill hole in the centre of the stud and try an easy out which is much like a tread tap only grips in reverse or drill the bolt out and rectap the tread you could try first giving the exposed stud a go solid hit with a hammer and them try vise grips

[HK1837]

I'll try the hammer and vice grips again. Never liked easy outs, damn things always snap off on me! I could grind it off and drill it out. Once drilled out I reckon it'd probably come out. I just want to do it before the box goes back in as there is a lot more room.

[buck]

that happened to me years ago, some i drilled out and retapped, carbide drill best for this, others i was able to weld a bolt to it and screw it out. with penertrine sprayed into the night before.

[V6HQUTE]

others i was able to weld a bolt to it and screw it out

beat me to it