24. Camshaft Cleaning and Inspection

Camshaft Cleaning and Inspection




1. Inspect the cam lobes.
2. Using a micrometer, measure the cam lobe height.
If the cam lobe height is less than the minimum, replace the camshaft.

* Standard cam lobe height - 42.816 to 42.916 mm (1.6857 to 1.6896 in).
* Minimum cam lobe height - 42.666 mm (1.6798 in).




3. Inspect the camshaft journals.
4. Using a micrometer, measure the journal diameter.
Place the No. 2 camshaft on V-blocks.
If the journal diameter is not as specified, check the oil clearance.




5. Inspect the No. 2 camshaft for runout.
6. Place the No. 2 camshaft on V-blocks.
7. Using a dial indicator, measure the circle runout at the center journal.
If the circle runout is greater than the maximum, replace the No. 2 camshaft.

Maximum circle runout - 0.04 mm (0.0016 in).




8. Inspect the cam lobes.
9. Using a micrometer, measure the cam lobe height.
If the cam lobe height is less than the minimum, replace the No. 2 camshaft.

* Standard cam lobe height - 44.336 to 44.436 mm (1.7455 to 1.7494 in).
* Minimum cam lobe height - 44.186 mm (1.7396 in).

10. Inspect the camshaft journals.
11. Using a micrometer, measure the journal diameter.
If the journal diameter is not as specified, check the oil clearance.