At that time of your discussion the Twin Cam was finishing up its 5th year in service. Did he share any insight regarding specific issues resulting from H-D designing a lubrication system running pressures lower than he recommended?
I don't recall. It did appear there was significant disagreement between him and the HD engineers.
The folks at Feuling do promote the concept of adding more oil to overcome “inadequate oil flow” and cool various internal components. Snippets from the "The Twin Cam Era” chapter in the book “The Harley Davidson Century” cover in detail how this approach was tried initially and failed to produce the desired results. Clearly the folks at Feuling and H-D have opposing viewpoints on how to lubricate and cool the Twin Cam engine.
The paragraph in the book describing how reducing the volume of oil to the top end by 400% to 600% resulted in a 30 degree reduction in oil temp seems to debunk the myth that more is better; this is significant when you consider that the additional oil was originally intended to cool the engine.
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Topic: oil pressure (Read 12732 times)