Lubrication System

GENERAL
The gearbox components are lubricated by the oil in the gearcase sump. Holes in partition walls ensure that the oil level will be the same in the primary chaincase, main gearcase and final drive gearcase. A ball valve fitted in the primary chaincase prevents changes in the oil level when the car is travelling downhill and thus ensures lubrication of the final drive.

LUBRICATION
The crown wheel and layshaft pinions are partially submerged in oil. When the car is under way, oil is delivered by an oil catcher to the primary drive chaincase. The oil collected in the sump of the primary chaincase lubricates the chains, sprockets and input shaft bearing. Excess oil is returned to the primary chaincase and the main gearcase by two oil catchers, which lubricate the output shaft gearwheels. The oil flows through drilled oil ways in the input and output shafts, through a connecting pipe to four lubrication points on the output shaft for lubricating the gearwheel bearings.

VENTILATION
A vent on the chaincase cover compensates for pressure changes in the gearbox.

OIL
Engine oil is used for lubricating the transmission system. The oil should be changed during the 2000 km service, and then only after repair or reconditioning of the gearbox. Use the oil recommended in the specification for topping up. Use the dipstick on the right hand side of the gearbox for checking the oil level.