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100IH · 10-13-2017, 10:02 AM

More than TDC on the crank. Many times ignition issues are caused by being 180 deg. out. The dimple on the cam gear guarantees that the cam lobes are positioned for end of compression stroke where the rotor & cam can be set to open the points.

10-13-2017, 10:02 AM	#5
100IH Senior Member Join Date: Dec 2011 Location: SW Idaho Posts: 970	Re: Timing Marks? More than TDC on the crank. Many times ignition issues are caused by being 180 deg. out. The dimple on the cam gear guarantees that the cam lobes are positioned for end of compression stroke where the rotor & cam can be set to open the points.