It"s not the rings. Gm decided the drain back holes behind the rings needed to be smaller in their pistons. End result , hole plug up , cylinder pumps oil . I see a lot of this . Jasper engine rep showed me some bulletins and redesigned pistons to correct the issue . I have used Motor Vac injector cleaner along with top engine cleaning to help. But once they plug ,pretty hard to get them to clean out . Real common on 5.3 and 4.2 .
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Today's Featured Article - Grain Threshing in the Early 40's - by Pat Browning. The setting is rural Wisconsin, halfway between East Troy and Elkhorn, on Hodunk Road, our nation was at war, and I was 6, 7 and 8 years old. George was our "threshing neighbor." He was the one with the threshing machine, a JI Case on steel wheels, and he pulled it to our farm with a JI Case standard tractor also on steel. In those days, steel wheeled implements were common. The roads were general gravel, so the lugs cutting into them wasn't a problem. George would set up the thresher, s
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