Oil Circuit

Oil Circuit







The oil pressure is generated by a self-priming oil pump -5-. This is mounted in the cylinder block and is driven by the chain drive. The installation position ensures a long suction route -7-, which lasts for the duration of time required to supply initial oil to the components. For this reason, oil is taken from a reservoir -6- behind the oil pump to guarantee the initial oil supply. The oil pump draws the oil from the oil pan -8- and then pumps it to the oil filter and oil/water heat exchanger -10-.

Oil Pump With Oil Reservoir

The oil reservoir is formed in the cylinder block by a cavity behind the oil pump. It has a volume of approx. 280 ml and is retained even after the engine is stopped.







Service Opening







The service opening allows access to the oil pressure regulating piston in the oil pump when the engine is installed. The pressure piston in the oil pump can be removed through the opening without having to remove the chain drive by unscrewing the cover screw and a second inner screw.

Oil/Water Heat Exchanger With Oil Filter

The oil/water heat exchanger and the oil filter with bypass valve form one unit.

Oil Return







The oil that flows back is routed into a central oil return duct -1- in the cylinder block via three return ducts in the cylinder head. The oil then flows back under the oil level into the oil pan. In addition to the central oil return system, oil at the front is also returned to the oil pan via the chain drive housing.