LUBRICATION SYSTEM


  1. CONSTRUCTION


    1. Oil Pump


      1. A compact cycloid rotor type oil pump directly driven by the crankshaft is used.

      2. This oil pump uses an internal relief method which circulates relief oil to the suction passage in the oil pump. This aims to minimize oil level change in the oil pan, reduce friction and reduce air mixing rate in the oil.

        A000MLME02
        Text in Illustration
        *1 Timing Chain Cover *2 Oil Pump Rotor (Cycloid Rotor)
        *3 Oil Pump Housing *4 Crankshaft
        *a To Cylinder Block *b From Oil Filter
        *c To Oil Filter *d Relief Oil
        *e From Oil Strainer - -

    2. Oil Jet


      1. Oil jets for cooling and lubricating the pistons have been provided in the cylinder block, in the center of the right and left banks.

      2. These oil jets contain a check valve to prevent oil from being fed when the oil pressure is low. This prevents the overall oil pressure in the engine from dropping.

        A000MA7E02
        Text in Illustration
        *1 Oil Jet *2 Cylinder Block
        *3 Check Valve - -
        *a Oil Jet Cross Section - -
        A000M4P Oil - -

    3. Oil Filter


      1. An oil filter with a replaceable element is used. The element uses a high-performance filter paper to improve filtration performance. The element is also combustible for environmental protection.

      2. A plastic filter cap is used for weight reduction.

      3. This oil filter has a structure which can drain the oil remaining in the oil filter. This prevents oil from spattering when replacing the element and allows the technician to work without touching hot oil.

        A000M0XE02
        Text in Illustration
        *1 Oil Filter Case *2 Element
        *3 O-ring *4 Filter Cap
        *5 Drain Plug *6 Drain Pipe
        *a When Draining Oil - -

        Tech Tips

        The oil in the oil filter can be drained by removing the drain plug and inserting the drain pipe supplied with the element into the oil filter. For details, refer to the Repair Manual.