| Problem | Cause | Correction |
|---|---|---|
| Chatter on Cam Nose | Interference of rocker bar motion | Sludge jamming motion, clean or replace |
| Scored bearings | Check for irregularities in rocker bearings | |
| Insufficient lubrication | Tight bearings in rocker bar - lubricate | |
| Insufficient rocker tension |
Tighten rocker tension |
