6.7L Cummins Cylinder Block – Crankshaft Speed Indicator Ring – Measure

Crankshaft Speed/Position Sensor Air Gap Check
With the vibration damper and crankshaft speed indicator ring installed, use a feeler gauge to measure the air gap
between the crankshaft speed/position sensor and crankshaft speed indicator ring.

If the air gap is not within specification, remove and inspect the crankshaft speed/position sensor for damage.