Technical data and maintenanceValve springs
Valve springs
| Loose height | 53.9 mm |
| Height with check load 36.7 ÷ 39.6 N | 36 mm |
| Height with check load 56.0 ÷ 61.0 N | 26.5 mm |
Transmission tappets
| External diameter | 36.975 ÷ 36.995 mm |
| Play with closed valves | Intake | 0.25 ÷ 0.35 mm |
| Exhaust | 0.30 ÷ 0.40 mm |
Propeller shaft
| Diameter of pins of the propeller shaft | 26.000 ÷ 26.015 mm |
| Nominal cam's lift | Intake | 8.5 mm |
| Exhaust | 8.5 mm |
| End play of the propeller shaft | 0.100 ÷ 0.230 mm |
Valves play
| Play to check the timing | 0.50 mm |
| Play with closed valves | Intake | 0.25 ÷ 0.35 mm |
| Exhaust | 0.30 ÷ 0.40 mm |
Cylinder's head gasket
| Average max protrusion of the pistor | Thickness of the cylinder head gasket to be used |
|---|
| 0.795 ÷ 0.881 mm | 1.55 ÷ 1.65 mm (no notch) |
| 0.881 ÷ 0.967 mm | 1.65 ÷ 1.75 mm (one notch) |
| 0.967 ÷ 1.055 mm | 1.75 ÷ 1.85 mm (two notches) |
ANGULAR VALUES OF THE TRANSMISSION DIAGRAM (Obtained with a test play of 0.50 mm)
| Intake | Opening (before TDC) | 0° |
| Closing (after BDC) | 32° |
| Angular intake value | 212° |
| Exhaust | Opening (before BDC) | 32° |
| Closing (after TDC) | 0° |
| Angular exhaust value | 212° |
02 Maintenance
