Valve Clearance: Notes
Valves must be set with engine cold. To adjust valves, rotate crankshaft until valve listed in first column of table is fully open, then adjust valves listed in second column of table. On 18i models, note that valves (and cylinders) are numbered from REAR to FRONT.
| Valve Open | Valves to Adjust |
|---|---|
| No. 1 Exh. | No. 3 Int. & No. 4 Exh. |
| No. 3 Exh. | No. 4 Int. & No. 2 Exh. |
| No. 4 Exh. | No. 2 Int. & No. 1 Exh. |
| No. 2 Exh. | No. 1 Int. & No. 3 Exh. |