2. Turn the crankshaft clockwise until the mark on the camshaft sprocket matches the mark on the bearing housing, which will correspond to the end of the compression stroke in the fourth cylinder. In this position, the clearance at the exhaust valve of the 4th cylinder is adjusted (8th cam) and the intake valve of the 3rd cylinder (6th cam).
3.Loosen the lever adjusting bolt lock nut.
4. Insert a flat feeler gauge A.95111, 0.15 mm thick, between the lever and the camshaft cam and use a wrench to tighten or loosen bolt 2, then tighten lock nut 3 until, with the lock nut tightened, feeler gauge 1 enters with a slight pinch.
5. After adjusting the clearance at the exhaust valve of the 4th cylinder and the intake valve of the 3rd cylinder, sequentially turn the crankshaft 180° and adjust the clearances, observing the sequence indicated in the table.
Sequence of adjustment of clearances in the valve mechanism
| Crankshaft rotation angle | The number of the cylinder in which the compression stroke occurs (end) | Number of adjustable valves (cams) |
| 0° | 4 | 8 and 6 |
| 180° | 2 | 4 and 7 |
| 360° | 1 | 1 and 3 |
| 540° | 3 | 5 and 2 |