Taping Exhaust Manifold Studs?

[Kaido_RR]

Hi,

I'm having an issue with my exhaust manifold leaking, at 1st i through it was due to my manifold being warp but i had a closer look today and it looks like when my exhaust manifold was removed the rear stud snapped off and was replaced with a bolt, the pitch of the bolt was too small and has threaded the hole.

What i need to know is what is the std size of the studs? and what is the size i need to retap/thread the hole with now? And also what stud can i use in the new hole?

any other related help would be great also

Thanks Michael

Edited January 20, 2009 by [Michael]

[WilYawn]

Standard thread size is M10x1.25

I have a bag with oem studs right here

Edited January 20, 2009 by WilYawn

[blind_elk]

You will probably need to drill and tap the hole oversize, and use a helicoil to bring it back to the correct size for the stud.

Studs are a standard item across the majority of makes and models, and are readily available at most auto parts shops and exhaust places.