LUBRICATION SYSTEM > DETAILS



CONSTRUCTION


  1. Oil Pump Assembly

    1. The trochoidal type oil pump assembly is driven by the crankshaft, and fits compactly inside the oil pan.



    2. A relief valve has been provided on the oil pump assembly, thus, any excessive pressure rises are restrained and the friction loss is reduced.


      W101576E02


      Text in Illustration 
      *1
      		Crankshaft
      		*2
      		Oil Pump Assembly
      *3
      		Relief Valve
      		-
      		-



  2. Oil Nozzle Sub-assembly

    1. Oil nozzle sub-assemblies for cooling and lubricating the pistons have been provided in the cylinder block sub-assembly.



    2. These 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.


      W101577E02


      Text in Illustration 
      *1
      		Cylinder Block Sub-assembly
      		*2
      		Oil Nozzle Sub-assembly
      *3
      		Check Ball
      		-
      		-
      *a
      		Oil Nozzle Sub-assembly Cross Section
      		-
      		-
      V100135
      		Oil
      		-
      		-



  3. Oil Filter



    1. An oil filter with 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.


      W101578E01


      Text in Illustration 
      *1
      		Oil Filter Case
      		*2
      		Oil Filter Element
      *3
      		O-ring
      		*4
      		Filter Cap Sub-assembly

      HINT:
      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.