I wish I could quote something, as I just went through all this. I lined up the pulley with the fan extension per spec, held the crankshaft from turning (my oil pan was off so that was easy), then tightened the dog bolt with torque wrench to about 75 lbs. After what I went through to get that beast off (hours of antics), I guess I was too afraid of stripping the threads to go tighter. Someone on this board told me to tighten it to 100 lbs, but that spec does not appear in the Manual. The manual just says to tighten until the starter dogs line up to "ten minutes to four." That doesn't seem to mandate a torque of 100 lbs, but maybe others have more information. In addition, tell me if I'm wrong, but I don't think my TR4A dog bolt has any starter dogs.