Maybe a picture will help. This is out of a Ford design manual -
http://home.swbell.net/cartrip/CamTaper2.gif (do we believe Ford or
Mercedes?). Keep in mind that the figure is greatly exaggerated. With a
50 to 60 inch radius, the total height of the crown is less than 0.002.
Lobes in a TR4 engine are offset about 0.050 from the lifter bores.
(Sorry Chris, all dimensions are in inches).
Larry
>In a message dated 1/6/2006 3:02:04 PM Eastern Standard Time, BillB@bnj.com
>writes:
>
>I can't visualize how doming would help
>rotation unless it was moving the contact patch off center in a cam/lifter
>pair where the cam lobe was centered over the lifter.
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