Oil Pump Assembly
The trochoidal type oil pump assembly is driven by the crankshaft, and fits compactly inside the oil pan.
A relief valve has been provided on the oil pump assembly, thus, any excessive pressure rises are restrained and friction loss is reduced.
|*1||Crankshaft||*2||Oil Pump Assembly|
No. 1 Oil Nozzle Sub-assembly
No. 1 oil nozzle sub-assemblies for cooling and lubricating the pistons are provided in the cylinder block sub-assembly.
These No. 1 oil nozzle sub-assemblies contain a check ball to prevent oil from being fed when the oil pressure is low. This prevents the overall oil pressure in the engine from dropping.
|*1||Cylinder Block Sub-assembly||*2||No. 1 Oil Nozzle Sub-assembly|
|*a||No. 1 Oil Nozzle Sub-assembly Cross Section||-||-|
Oil Filter Element
A replaceable oil filter element is used. The oil filter element uses a high-performance filter paper to improve filtration performance. It is also combustible for environmental protection.
|*1||Oil Filter Bracket Sub-assembly||*2||Oil Filter Element|
|*3||O-ring||*4||Oil Filter Cap Assembly|
The engine oil maintenance interval for a model that has an oil filter with a replaceable oil filter element is the same as that for a conventional model.