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, thus safeguarding lubrication of the final drive.

LUBRICATION
The crown wheel and the layshaft drive gearwheel and pinions are partially submerged in oil. When the car is underway, 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. Oil flows through drilled oilways in the input and output shafts, through a connecting pipe to four lubrication points on the output shaft for lubricating the gearwheel bearings.

OIL
Engine oil is used for lubrication. The oil should be changed only after repair or reconditioning of the gearbox. For topping up, use the oil recommended in the specification. Use the dipstick on the right-hand side of the gearbox for checking the oil level.