Thread: Bourke Engine
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Old 07-14-2010, 12:40 PM   #9 (permalink)
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I think the major problem with the scotch yoke engines was wear in the scotch yoke. See the photo below. The areas in the elipses have apparently been worn or pounded out by the bearing on the connnecting rod - they should be in a straight line from the top to the bottom, I believe. Maybe this problem could be over come with modern materials - nitrided steel or titanium, perhaps?
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