Knurling used to be done fairly often in machine shop of auto parts store I worked at many years back on cab and delivery truck engines, used cars for a couple used car lots. Oversize "Service" rings and a knurl piston with light hone got a lot of +.010/.015 wear engines back on road for another 50,000 miles. Rod and main bearings were often the .002/.004 undersized- like Ford stocks for some engines. Valves often got knurled guides and a lap job. Engines were termed "service/refurbished" instead of "rebuilt". JD light use- can you find the +005/7 chromed service rings anywhere? Or the next oversize ring that can be end machined gapped is what size? RN
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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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