ENGINE UNIT


  1. CONSTRUCTION


    1. The pistons are made of aluminum alloy to allow them to be compact and lightweight.

    2. The piston head portion uses a taper squish shape to achieve fuel combustion efficiency.

    3. The piston skirts are coated with resin to reduce friction losses.

    4. The groove of the No. 1 compression ring is coated with alumite to ensure abrasion resistance.

    5. Low-tension piston rings are used to reduce friction and achieve excellent fuel economy.

    6. Narrow-width piston rings are used to reduce weight and friction.

    7. A Physical Vapor Deposition (PVD) coating has been applied to the surface of the No. 1 compression ring, in order to improve its wear resistance.

    8. A No. 1 compression ring with an inside bevel shape is used to improve engine performance.

    9. A steel No. 2 compression ring is used to improve wear resistance.

    10. A groove is added to the inner surface of the oil ring rail, thus making the engine oil easy to discharge and reduce oil consumption.

      A0111EQC01
      *1 No. 1 Compression Ring *2 No. 2 Compression Ring
      *3 Oil Ring - -
      *a Taper Squish Shape *b Alumite Coating
      *c PVD Coating *d Inside Bevel Shape
      *e Groove - -
      B003XJI Resin Coating - -