you gotta give metric values. it's so much easier to not have to convert to inches. find your engine type #, get the cam timing spec. from an official spec book. set engine to #1 firing position (Z1 on pulley aligned with the split of the cases)snug up cam nut and adj. #1 intake to .10mm. set up a metric dial gauge on the valve spring retainer of #1 intake valve. preload it and set it to zero. rotate engine 360 degrees clockwise (Z1 to case split again). the dial gauge now reads how much the valve has opened. compare to factory spec, if it's within tolerance, tighten nut.then recheck your job by turning engine counter clockwise until the dial gauge returns to zero, and then clockwise to Z1 again. if it's not in spec, pull the cam gear pin and turn cam to the proper spec(on the dial gauge), reinsert pin in the hole with no interference, and tighten nut.(always recheck after tightening nut). repeat on #4 intake. easy. a special tool is req'd to hold cam from turning as you tighten the nut.
[This message has been edited by john walker's workshop (edited 03-19-2001).]
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