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Engine Description - Oil Cooling


The stock oil cooler is made of steel and is associated with cracks in the case. An aluminum replacement is available which has better head transfer characteristicsand is lighter weight, putting less stress on the case.

The oil cooler is mounted on the crankcase in the stream of cooling air forced through by the cooling blower. The oil cooler is so inserted into the oil circuit that the oil pumped by the oil pump must pass through the oil cooler before it reaches the points of lubrication. Cooling of the oil ensures that it retains its full lubricating qualities even in very warm weather and under constant operating loads. When the oil is cold and thick flowing, a pressure relief valve permits the oil to bypass the oil cooler and flow directly into the oil galleries.
Last modified: Mon, 17 Jan 2005


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