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Old 12-26-2012, 05:52 AM   #24
Rob Farmer
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Joined: Aug 2002
Location: Loughborough, Leicestershire. England
Oddometer: 5,413
I'm probably showing my ignoroance of cam design here but since the cam followers are off set from the centre of the cams wouldn't the followers spin anyway? I'm not sure why you'd need a taper on the cam face. I've just had a look on three used cams I have laying about and all three have a larger worn contact area marked on the exhaust valves than the inlets but all four lobes on all of them have wear marks supporting the cam followers spinning.
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