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 the lobes for wear or for scoring.
2. Using an outside micrometer, measure the height of the intake lobes and of the 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 do not meet the specifications, replace the camshaft.





4. Place the camshaft in two V-Blocks, and use a dial indicator in order 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 for other signs of damage.