Speaking as a retired railroad Machinist/Mechanic: A General Motors,Electro Motive Division 16V645 (V16,645 cubic inch per cylinder)Locomotive 2 cycle engine idles at 200 RPM,top goverened speed is 800 RPM, Stroke is 10 inch"s. Horsepower is around 3000, depending of if the engine is super- charged or turbo charged. I am not aware of any specific bearing problems. Back in the 1970"s, as part of preventave maintanance we used to change out the bottom connecting rod bearings. Only the bottom, as, on a 2 cycle engine, there was power on the downstroke, and compression on the upstroke so only the bottom bearing insert shell was subject to any major wear. We seldom noticed any unusual wear,and it the late 70"s we quit doing the changeout, as it wasn"t cost effective. Locomotive main bearing and connecting rod bearings were silver plated, and detection of silver in the oil is a part of oil sample analysis, now, as indication of bearing wear.
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Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
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