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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Missing Oil Cooler
Message text written by Paul Dent >he didn't recommend reinstalling one. Does anybody have any thoughts on this?< The V12 oil cooler is a weird beast; it only cools what flows through when the pressure relief valve opens. Think about it: when does it open? When the pressure is high, i.e., when the oil is cold, or the engine is running at high revs. In an elderly engine that maybe has to turn 2,500 rpm to get 60 psi when hot, there'll be precious little cooling. This is one of the many little things I'd love to change when I get around to rebuilding my spare HE engine: reversing the process, so the cooler operates on the full flow but only when the oil is hot and thin; VW solved this very neatly by having the relief valve partly bypass the cooler when it opens. - Jan Follow-Ups:
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