Cam sensor interupt ring travel?

[onefastcar]

Have miss at wot condition and am checking cam sensor and it has approx. 1/8th inch travel up and down, good or bad. Cap looks good and the ring has no wobble and screw is tight, just this up and down travel.

 

[jstahl]

1/8" sounds OK. May be on the loose side. Best is between .030 and .040.