Caution: Refer to Safety Glasses Caution in the Preface section.
| • | Worn or damaged hub-to-crankshaft surface (1) |
| • | Damage to keyway surface (2) |
| • | Worn, grooved or damaged hub seal surface (3) -- A crankshaft balancer hub seal surface with excessive scoring, grooves, rust or other damage must be replaced. |
| • | Worn, chunking or deteriorated rubber between the hub and pulley (4) |
| • | Damaged drive belt ribs (5) |
| • | Damaged threaded holes (6) |