broken exhaust manifold bolts

[spooner]

the bolt is broke off below the surface so welding a nut wont work

[Easy Ed]

If you drill it for a "easy out" use a slow RPM, too fast and it will "heat treat" the bolt then you will need a carbide drill bit.

You say it is broke off below the surface, is that the manifold surface or the head surface. If it is the manifold surface remove the rest of the bolts, move the minifold out of the way and use the vise grip method or weld a nut to it.

Here is a link to give ya some options.
http://www.elcovaforums.com/forums/s...ad.php?t=41269


Good luck, Ed

[Olfart]

might be worthwhile to remove the manifold anyway and replace all the bolts with better ones since if one of yours broke another will probably break later on

[AndyMac]

I just did my broken exhaust bolts a few weeks ago. I was very surprised how easily they came out. 2 were broken off past the head surface, and 1 was broken below the surface. Used a pair of knipex cobra pliers to remove the 2 that were above the head, and then built some weld up on the bolt that was below the head surface till there was enough to grab with my pliers. Took 2 tries to get the weld to stick, but it came right out.

Knipex > vice grips.

http://www.knipex.com/index.php?id=1...8&groupID=1503

Good luck