Tough question on stripped threads
 

All I seemed to have stripped some engine mount threads described in this post;

http://forums.pelicanparts.com/911-930-turbo-super-charging-forum/457782-stripped-rear-motor-mount-threads.html

I would really appreciate if anyone here could take a look and advise!

Thanks

A Time-Sert should be OK if you use one with the correct depth, and there is sufficient material to hold the insert. A Heli-coil is also an option to consider. The torque spec for those bolts/studs is 35 lb/ft, so check with a local machine shop about each type of insert and what they prefer. Each insert requires a tool set for installation.