The engine is equipped with a circulation, forced lubrication system and is supplied with oil through an oil pump inserted into the camshaft drive cover. The principle of operation for the injection and carburetor engines is the same, that is, in both versions, the internal gear rotates in the external one, however, the shape of the teeth of both gears is different. Pump gears are covered with a cover.
A drive element put on the crankshaft is a kind of remote sleeve that drives the internal gear. The lubrication system also includes an adjustable pressure relief valve, a replaceable oil filter and an oil pump suction filter. Oil distribution is carried out in the usual way.