Quote Originally Posted by DickieO View Post
Got it sorted, decided to go with the expensive way out and get a professional out to remove the stud, wasnt cheap but the job is done cleanly with no helicoil needed. I wont be using those left hand spiral type of EZ outs again thats for sure!

Thanks everyone for your help, i'll be alot more careful when it comes to removing my next broken stud.

Any thing i should know when putting new studs back in? i know the torque setting for the nut when the manifold goes on, but is there one for the stud?
Not per say. You can use thread sealant to ensure the stud never moves on it's own.
I used thread sealant with mine 'cos the nut can sort of weld onto the stud over time due to heat and rust and come out
with the stud when try to undo it. But, usualy if you tighten the stud all the way in, it should be fine.
The thread sealant I used is the type that can be melted when the stud is heated to a certain temperatue that is well below the melting or deforming temperature of aluminium alloy cylinder head, so it won't cause any issues in the future if I have to take the stud out.

How did the professional get the broken stud(and the broken ez out bit in it) out?!