ENGINE UNIT


  1. CONSTRUCTION


    1. Two engine mounts are provided on each side of the engine and one engine mount is also provided at the back of the transmission.

    2. 2WD Models


      1. Hydraulic engine mountings (Front Engine Mounting Insulator), which are equipped with a mechanism that switches the spring characteristics while idling and driving, are used. As a result, vibration and noise are reduced, achieving a comfortable ride.

    3. AWD Models


      1. Hydraulic engine mountings (Front Engine Mounting Insulator) are used, to generate damping force against unit vibration due to the road roughness and achieve a comfortable ride.

    4. A solid rubber mounting is used for the rear engine mounting insulator to firmly tune the spring characteristics in the longitudinal direction in order to suppress uncomfortable front-to-back vibrations, and also contributes to greater responsiveness when accelerating and decelerating.

      B00564JC02
      *A 2WD Models *B AWD Models
      *1 Front Engine Mounting Insulator *2 Rear Engine Mounting Insulator

  2. OPERATION


    1. Spring Characteristic Switching Mechanism (2WD Models)


      1. The movable membrane opens and closes according to the fluid pressure changing the spring characteristics.

      2. When idling, the fluctuation in fluid pressure is small and fluid passes through the No. 1 passage and No. 2 passage, allowing the double orifice to function. As a result, the transmission of vibrations from the engine to the body is suppressed.

      3. When driving, the fluctuation in fluid pressure is large and the movable membrane closes to prevent fluid from passing through the No. 2 passage, making it so that fluid passes only through the No. 1 passage, allowing the single orifice to function. This helps to achieve a comfortable ride.

        B0056JIC01
        *1 Body Rubber *2 Movable Membrane
        *a Main Chamber *b No. 1 Passage
        *c Sub-chamber *d No. 2 Passage
        *e While idling (Small Vibrations) *f While Driving (Large Vibrations)