Valve Spring: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Right Bank | ||||
| XK8 | 18.1 | 13.3 | B | |
| XKR | 19.7 | 14.1 | B | |
| Left Bank | ||||
| XK8 | 17.9 | 12.8 | B | |
| XKR | 19.3 | 13.8 | B |
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Right Bank | ||||
| XK8 | 18.1 | 13.3 | B | |
| XKR | 19.7 | 14.1 | B | |
| Left Bank | ||||
| XK8 | 17.9 | 12.8 | B | |
| XKR | 19.3 | 13.8 | B |