Most of the old trucks had lock washers on the heads of the bolts holding the bellhousing to the flywheel housing. On the old double breasted Yamaha's if they didn't have lock washers they would work loose and break the bolts off. Then you had a couple options 1 change flywheel housing or 2 drill out the old bolts and tap for new bolts if you could otherwise you had to drill out old bolts and helicoil the old holes for new bolts. Never had problems with trucks with Cummins or Cats in them doing that just those detriots. Usually the lock washers were a flat form of a washer. Sometimes split ones were used as a replacement by somebody that had lost one or it broke. I think for a lot of jobs torquing bolts is over rated. Till I was in high school I didn't know they made torque wrenches. Never had one nor used one. Did many engines without one with no failures due to proper torque on bolts.
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Today's Featured Article - Usin Your Implements: Bucket Loader - by Curtis Von Fange. Introduction: Dad was raised during the depression years of the thirties. As a kid he worked part time on a farm in Kansas doing many of the manual chores. Some of the more successful farmers of that day had a new time saving device called a tractor. It increased the farm productivity and, in general, made life easier because more work could be done with this 'mechanical beast'. My dad dreamed that some day he would have his own tractor with every implement he could get. When he rea
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