Quote:
Originally Posted by CHANMADD
Hey Gaz..........I believe that the cam goes at half speed to the crank......that way if you rotate the crank 180.......then the cam will turn 360...........putting the lobe opposite to where it was..........its not to difficult to visualize......
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You are right about the half speed relationship Chanmadd.
That means if you rotate the crank 180˚ the cam turns half as many degrees (90˚). The reason for this is because the cam gear is twice the size of the crank gear and therefore requires two turns of the crank to produce one turn of the cam.
Ed