Detroit Diesel — Inspection of the Camshaft and Rocker Shaft Assemblies
Testing & diagnosis
From a Detroit Diesel service manual — check it applies to your exact model before use.
Procedure
- Inspect the camshafts for lobe damage, replace if necessary.
- Inspect the camshaft gears for damage, replace if necessary.
- Inspect the rocker shaft for scoring or scuffing, replace if necessary.
- Inspect rocker arms for roller and bushing damage, replace if necessary.
- Inspect adjusting screws and buttons, replace if necessary.
Source: Detroit Diesel service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.