....."It doesn"t use oil, but would it explain it if I was losing compression on a cylinder after it warms up?" I have been caught out on this before ,no,or normal oil consumption after keeping oil-v-fuel used records for a period of 100hrs or more. Your oil control rings may be fine, but you can get this loss of compression with out increased oil consumption. Carry out dry and wet compression tests when the engine is hot. You won"t need to know what the correct compression should be,It is not a new tractor and there will be wear in the engine, what you are looking for is a difference in pressures between the two pots, more than around 10% between them and you need to be looking for trouble. If you get a difference you will need to carry out a wet test in case you have a compression loss through a valve or valves Do your testing after checking the valve clearances, and pull the air inlet pipe off the inlet manifold. Test must be done engine hot. If all is o.k there then you can turn your attention to the fuel system which may need to be done by a Diesel injection specialist knowing that the base engine is satisfactory.
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Today's Featured Article - Fire in the Field A hay fire is no laughing matter-well, maybe one was! And a good life-lesson, too. Following World War II many farm boys returned home both older and wiser. One such man was my employer the summer I was sixteen. He was a farmer by birth and a farmer by choice, and like many returning soldiers, he was our silent hero: without medals or decorations, but with a certain ability to survive. It was on his farm that I learned to use the combination hand clutch and brake on a John D
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