i was torquing the cam bolts yesterday, using my Craftsman click style wrench. it's only a few years old, hasn't had a lot of use, and i've always dropped the setting down when storing it.

but i wondered about it, and after torquing the bolts to 40 ft. lbs, got out my old beam style wrench and all 3 bolts started to tighten at about 35 ft lbs.

where can i get a torque wrench checked out? i've heard that snap-on trucks have a testing tool on them, is this the case?

i've done the whole bottom end of the engine with this wrench, but now don't want to continue until i know where it's really at.