Tools Required
J 7872 Magnetic Base
Dial Indicator
- Clean the camshaft in solvent.
Caution: Wear safety glasses in order to avoid eye damage.
- Dry the camshaft with compressed air.
- Inspect the camshaft retainer
plate for damage.
- Inspect the camshaft for the following conditions:
• | Camshaft bearing journals (1) that are: |
• | Worn camshaft lobes (2) |
• | Damaged sprocket bolt threads (3) |
• | Damaged sprocket pin (4) |
- Measure the camshaft journals
with a micrometer. Refer to
Engine Mechanical Specifications
.
- Measure for excessive camshaft runout using J 7872
.
6.1. | Mount the camshaft in a suitable fixture. |
- Replace the camshaft if runout exceeds specifications.
- Inspect the camshaft bearings, 1-5, for serviceability.
- Replace the camshaft bearings if necessary. Refer to
Camshaft Bearing Removal
and
Camshaft Bearing Installation
.