ENGINE UNIT


  1. CONSTRUCTION


    1. Intake and exhaust efficiency has been increased due to larger total port areas.

    2. This engine uses No. 1 valve rocker arm sub-assemblies with built-in needle bearings. This reduces the friction that occurs between the cams and the areas (No. 1 valve rocker arm sub-assembly) that push the valves down, thus improving fuel economy.

    3. Valve lash adjuster assemblies, which maintain a constant zero valve clearance through the use of oil pressure and spring force, are used.

    4. The intake camshaft (camshaft) and exhaust camshaft (No. 2 camshaft) are driven by a chain sub-assembly.

    5. This engine uses a Dual Variable Valve Timing-intelligent (Dual VVT-i) system which controls the intake camshaft (camshaft) and exhaust camshaft (No. 2 camshaft) to provide optimal valve timing according to driving conditions. With this, lower fuel consumption, higher engine performance, and reduced exhaust emissions have been achieved.

      A0121MKC01
      *1 Chain Sub-assembly *2 Exhaust VVT-i Controller (Camshaft Timing Exhaust Gear Assembly)
      *3 No. 1 Chain Tensioner Assembly *4 Chain Tensioner Slipper
      *5 No. 2 Chain Vibration Damper *6 Intake VVT-i Controller (Camshaft Timing Gear Assembly)
      *7 No. 1 Chain Vibration Damper *8 Exhaust Camshaft (No. 2 Camshaft)
      *9 Intake Camshaft (Camshaft) *10 Exhaust Valve
      *11 Intake Valve *12 No. 1 Valve Rocker Arm Sub-assembly
      *13 Valve Lash Adjuster Assembly *14 Valve

    6. Valve Timing

      Intake Camshaft (Camshaft) Open 1° to 56° BTDC
      Close 65° to 10° ABDC
      Exhaust Camshaft (No. 2 Camshaft) Open 51° to 11° BBDC
      Close 3° to 43° ATDC
      A01218ZC01
      *a VVT-i Operation Range (Intake) *b VVT-i Operation Range (Exhaust)
      *c TDC *d BDC
      A0121HS Exhaust Valve Opening Angle A0121F8 Intake Valve Opening Angle