28. Camshaft Clean and Inspect

Tools Required
^ J 7872 Magnetic Base Dial Indicator Set
^ J 26900-2 Outside Micrometer

1. Inspect the camshaft journals and lobes for wear or scoring.





2. Using an outside micrometer, measure the height of the intake and exhaust lobes.
^ Standard Camshaft Intake Lobe Height 36.171 - 36.331 mm (1.4241 - 1.4303 inch)
^ Minimum Camshaft Intake Lobe Height 36.071 mm (1.4202 inch)
^ Standard Camshaft Exhaust Lobe Height 36.356 - 36.516 mm (1.4314 - 1.4376 inch)
^ Minimum Camshaft Exhaust Lobe Height 36.256 mm (1.4275 inch)
3. If any of the camshaft lobes measured are not within the required specifications, the camshaft must be replaced.





4. Place the camshaft in two V-Blocks and use a dial indicator to measure the runout of the camshaft.
Camshaft Runout Maximum = 0.10 mm (0.0039 inch)
5. Inspect the cylinder head for scoring in the camshaft journals.





6. Inspect the camshaft journal caps (1) for scoring.
7. Clean the cylinder head.
8. Wash the cylinder head in solvent.
9. Inspect the cylinder head for cracks or other signs of damage.