I asked in the Glow Engine forums opinions about using a torque screwdriver to tighten engine screws. I was given a link to a site that suggest the following torque for head and cranckase screws. I would like to know if these values are ok for OS engines. I accidentally stripped some engine screws and would like to avoid that in the future.

Screw Size-------Torque

2.0 m ---- ------ 5-7 in-lb
2-56 ---- -------6-8 in-lb
2.5 mm ---------8-10 in-lb
4-40 -------------12-14 in-lb
3.0 mm ----------13-15 in-lb
5-40--------------14-16 in-lb
6-32 --------------17-21 in-lb
4.0 mm ----------20-24 in-lb
8-32 -------------22-26 in-lb

And Glow Plug : 20-24 in-lb ( slightly more in high rpm applications)


Thank you