F 550 4WD Super Duty V8-6.4L DSL Turbo (2008)
Camshaft: Testing and Inspection
Camshaft Journal to Bearing Clearance
Camshaft Journal to Bearing Clearance
1. Inspect the 5 camshaft bushings for wear and correct running clearance.
2. Use a telescoping gauge and a 50-75 mm (2-3 inch) micrometer to measure the camshaft bushing inside diameter with the bushings installed in the
crankcase.
3. To determine running clearance, subtract previous camshaft journal diameter readings from camshaft bushing inside diameter readings.
4. If maximum allowable running clearance is exceeded, install new camshaft bushings.
