ENGINE UNIT


  1. CONSTRUCTION


    1. A spiny type liner, which has an irregularly shaped outer casting surface, is used to enhance the adhesion between the liners and the aluminum of the cylinder block sub-assembly. The enhanced adhesion helps heat dissipation, resulting in a lower overall temperature and reduced heat deformation of the cylinder bores. A cylinder block sub-assembly with this type of liner cannot be rebored.

      A00Z040C02
      *1 Cylinder Block Sub-assembly *2 Spiny-type Liner
      *a Irregularly shaped outer casting surface of liner - -

    2. Through the use of an offset crankshaft, the centerline of the cylinder bores is shifted 8 mm (0.315 in.) towards the exhaust in relation to the centerline of the crankshaft. Thus, the side force (thrust) applied to the cylinder walls is reduced when maximum combustion pressure is applied. This contributes to fuel economy.

      A00Z02XC02
      *a 8 mm (0.315 in.) *b Bore Centerline
      *c Crankshaft Centerline *d Offset Crankshaft
      *e Non-offset Crankshaft *f Maximum Pressure