Interesting posting on poured babbit bearings and non-detergent oil. Almost all the better engine bearings are still babbit bearings. (The cheaper ones use aluminum for the bearing surface.) The difference is in the thickness of the layer of babbit. Most bearings you will see will have steel outer shells with a layer of copper to bond the babbit to the steel. When you see the copper showing on a bearing shell the babbit bearing material is all gone in that area.
Back about the mid 70s bearing manufacturers started using nickel instead of copper for a bonding material. It was cheaper but soon was shown to be an inferior design. The nickel was too hard for any debris to be imbedded in the bearing and resulted in many crankshafts that were ruined. Engine manufacturers started recommending replacing engine bearings at every 100,000 miles.
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Today's Featured Article - Sunday Drives - by Cowboy. Summer was finally upon us here in Northern Maine. We have two types of industry up here, one being "Forestry" (Wood Products) and the other "Farming" (Potatoes). There is no shortage of farm tractors and equipment around here! I have been restoring old Farm Tractors for the past 6 years, and have found it easier and less expensive to hit all the auctions and purchase whole tractors for parts needed. My wife who works at a local school, and only has weekends and summers off, while on t
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