Valve: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Resurface/Grind | ||||
| Engine Model 4G63 | 9.8 | 7.0 | A | Includes: R&I Cylinder Head. Grind All Valves And Seats And Make All Necessary Adjustments. |
| Engine Model 420A | 10.8 | 7.9 | A | Includes: R&I Cylinder Head. Grind All Valves And Seats And Make All Necessary Adjustments. |
| Note | ||||
| To Knurl Valve Guides, Add | ||||
| Each | 0.1 | 0.0 | A | |
| To Renew Valve Guides, Add | ||||
| Each | 0.2 | 0.0 | A | |
| To Ream Guide, Add | 0.1 | 0.0 | A | |
| To Renew Timing Belt, Add | 1.2 | 0.0 | A | |
| To Renew Camshaft, Add | ||||
| One | 0.2 | 0.0 | A | |
| Each Additional | 0.1 | 0.0 | A | |
| With AC, Add | 0.5 | 0.3 | A |