Re: broken exhaust stud

["Gary H." <spigot2039@xxxxxxxxxxx>]

Accessibility is the key. On my 383's head an exhaust bolt closest to the firewall broke. Almost impossible to access cleanly. I tried the eze approach and ended up breaking the tip of the eze off in the bolt. Had to pull the head and worked a quite a while and managed to get the broken EZ out. I brought the head to the machine shop where they got the broken stud out and put in a heli-coil. My "wisdom" then is not to use a eze-out on something heat frozen in place like an exhaust manifold stud. 

Gary H.

-----Original Message-----
 >If you can get a drill in the area, you may be miles ahead by just 
>drilling out the stud, and re-tapping the threads.
>Eze-outs are very hard (a tap is also very hard, but much larger in size 
>than an eze-out), and easy to snap off. Once that happens, it's 
>impossible to drill out the bolt.
>It's much harder to break a tap in a properly sized hole.
>Gary Hamel can  probably shed some wisdom on this subject.
>
>
>     Jimmy 


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