Re: torque requirements for intake manifolds
Originally Posted by mjgroves
What happens if you torque down too hard on these? I just hand tightened mine but...
Torque values vary because of;
Screw size.
Screw material.
The material the thread is in.
Clamping pressure required.
Different expansion between the two mating faces.
etc.
You say hand tight. I would say hand tight could mean as tight as you possibly can get them with a wrench. Finger tight would be as tight as you can turn the screw heads with no tools and just with your finger tips.
Hand tight by my definition could be much too tight.
Uneven torque values can end up with permanent distortion of the part and leaks.
Last edited by onehundred80; May 1, 2011 at 11:03 AM.