Camshaft, Engine: Inspection: Camshaft
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
If Camshaft lobes are worn, requiring camshaft replacement, it is necessary to replace the tappets also.
- Inspect the valve lobes (1) and the bearing journals (2) for cracks, pitting, scoring or excessive wear. Replace any camshaft that exceeds the allowable limits.
- Measure the bearing journals and lobes.
CAMSHAFT DIMENSIONS
| CAMSHAFT DIMENSIONS | |
|---|---|
| Journal diameter (No. 1 and No. 7) | |
| Min. | 54.028 mm (2.127 in.) |
| Max. | 54.048 mm (2.128 in.) |
| Journal diameter (No. 2 through No. 6) | |
| Min. | 53.962 mm (2.124 in.) |
| Max. | 54.013 mm (2.126 in.) |
| DIAMETER OF PEAK OF LOBE | |
| Intake | |
| Min. | 47.175 mm (1.857 in.) |
| Max | 47.855 mm (1.884 in.) |
| Exhaust | |
| Min. | 45.632 mm (1.797 in.) |
| Max. | 46.312 mm (1.823 in.) |