That was a good explanation, I once took apart a small electric pump at work that had been setting awhile and leaked upon start up. The seal was full of a crystalline material, I just cleaned in up real well and put it back together and it was fine, so I recommended leaving it full of clean water when not in use, it had been pumping hydrochloric acid solution. You are right on on seals, mechanical seals are very hard, lip seals are soft!
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Today's Featured Article - Tractor Profile: Allis-Chalmers WD45 (Gas Version) - by Staff. Beginning production in 1953, the WD45 had the same general look as the WD tractor which was produced earlier - but was much more powerful. This was due to the new 4-cylinder "Power Crater" gasoline engine with a 4 x 4-1/2 inch bore and stroke. Some people feel this was one of the most significant tractors offered by Allis-Chalmers in those days. Nothing in its weight or power class could match its performance. In 1954 they began offering the WD45 with the new "Snap-Coupler&quo
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