Harmonic Balancer
#12
#15
#17
#19
A couple things to think about regarding torquing the crank nut. Torque values are best achieved by a smooth rotating force. Even with wheel nuts, you want to have the wrench click mid-stroke, while the two surfaces are "grinding" together. This ensures you've crept up on, and achieved, the correct spec. Whenever I feel a torque wrench click as soon as the nut (or bolt) starts spinning I back it off and start over.
While 200 ft/lbs isn't a tremendous amount, securing the crank at the torque converter mount points, or removing the starter and using a flywheel lock, isn't ideal. By securing the back end, you're transmitting all the force through the crank as you rotate around and hit 200 ft/lbs at the snout. Better to hold the crank at the front end where you're trying to achieve the torque value. Again, 200 ft/lbs isn't superman territory but I've seen guys snap the front off the crank at 300+ in older BMWs by using a flywheel lock.
While 200 ft/lbs isn't a tremendous amount, securing the crank at the torque converter mount points, or removing the starter and using a flywheel lock, isn't ideal. By securing the back end, you're transmitting all the force through the crank as you rotate around and hit 200 ft/lbs at the snout. Better to hold the crank at the front end where you're trying to achieve the torque value. Again, 200 ft/lbs isn't superman territory but I've seen guys snap the front off the crank at 300+ in older BMWs by using a flywheel lock.
Thread
Thread Starter
Forum
Replies
Last Post