Valve Lash Check
An adjustment is not necessary if the measurement of the valve lash is in the acceptable range. Valve lash must be checked with the engine stopped. The measurements are listed in Table 1.
| Valve Lash | ||
| Valve Lash Setting | Inlet Valves | Exhaust Valves |
| 0.13 mm (0.00512 inch) to 0.17 mm (0.00669 inch) |
0.13 mm (0.00512 inch) to 0.17 mm (0.00669 inch) |
|
| Firing Order | 1-3-4-2 (1) | |
| ( 1 ) | No. 1 cylinder is at the front of the engine |
Valve Lash Adjustment
| Location of Piston |
Adjustment Cylinder |
Valve Arrangement | |
| Inlet | Exhaust | ||
| Piston No.1 At Top Center |
1 | X | X |
| 2 | X | ||
| 3 | X | ||
| 4 | |||
| Piston No. 1 Is At Overlap Position |
1 | ||
| 2 | X | ||
| 3 | X | ||
| 4 | X | X | |
Adjust the valve lash while the engine is stopped. Use the following procedure in order to adjust the valves:
- Align the top center mark of the flywheel and the convex of the timing window that is on the flywheel housing. This brings the No. 1 cylinder to the top center position.
| Illustration 1 | g03332004 |
Location of timing window | |
| Illustration 2 | g02918462 |
View of correctly aligned top center mark | |
- Loosen locknut (2) of adjusting screw (1) , and insert feeler gauge between the rocker arm and the head of the valve bridge arm. Set the adjusting screw to the specified value, and tighten the locknut.
Note: After adjustment, tighten the locknut securely.
| Illustration 3 | g02918557 |
(1) Adjusting screw (2) Locknut | |
