ENGINE UNIT


  1. CONSTRUCTION


    1. The crankshaft main bearings are made of aluminum alloy.

    2. Similar to the connecting rod bearings, the lining surface of the crankshaft bearings is micro-grooved to achieve an optimal amount of oil clearance. As a result, cold-engine cranking performance is improved and engine vibration is reduced.

    3. The upper crankshaft bearings have an oil groove around the inside circumference.

    4. The crankshaft bearing caps are tightened using 4 plastic region tightening bolts for each journal. In addition, each cap is tightened laterally to improve its reliability.

      B002MSUC01
      *1 Plastic Region Tightening Bolt *2 Crankshaft Bearing Cap
      *3 Lower Crankshaft Bearing *4 Upper Crankshaft Bearing
      *a Oil Grooved *b Micro-grooved Surface