ENGINE UNIT


  1. CONSTRUCTION


    1. The cylinder block is made of die-cast aluminum.

    2. A compact block has been achieved by producing the thin cast-iron liners and cylinder block as a unit. Do not bore the block with this liner.

    3. The liners are the spiny-type, which have been manufactured so that their casting exterior forms a large irregular surface in order to enhance the adhesion between the liners and the aluminum cylinder block. The enhanced adhesion helps improve heat dissipation, resulting in a lower overall temperature and heat deformation of the cylinder bores.

    4. Cylinder block water jacket spacers are used in the water jackets of the cylinder block sub-assembly. They suppress the water flow in the center of the water jackets, guide the coolant above and below the cylinder bores, and ensure uniform temperature distribution. As a result, the viscosity of the engine oil that acts as a lubricant between the bore walls and the pistons can be lowered, thus reducing friction.

      A01KVSYC02
      *1 Cylinder Block Water Jacket Spacer *2 Cylinder Block (Cylinder Block Sub-assembly)
      *3 Liner *4 Irregularly shaped outer casting surface of liner
      *a Cylinder Bore Cross Section - -