LUBRICATION SYSTEM


  1. CONSTRUCTION


    1. 2 oil jets (No. 1 oil nozzle sub-assemblies) are provided for each cylinder. Knocking due to piston temperature increase is suppressed by cooling the exhaust side of the piston.

    2. An oil pressure switching valve assembly is used to supply or block oil to the oil jets (No. 1 oil nozzle sub-assemblies).*


      • *: Models with piston jet control system

      B00563VC01
      *A Models with Piston Jet Control System - -
      *1 Oil Jet (No. 1 Oil Nozzle Sub-assembly) *2 Check Valve
      *3 Oil Pressure Switching Valve Assembly - -
      *a Oil Jet (No. 1 Oil Nozzle Sub-assembly) Cross Section - -
      B0056J1 Oil - -

  2. OPERATION


    1. Piston Jet Control System*


      • *: Models with piston jet control system


      1. The oil pressure switching valve assembly operates according to signals from the ECM and switches between supplying and shutting off the oil supply to the oil jet (No. 1 oil nozzle sub-assembly) and controls the oil jet (No. 1 oil nozzle sub-assembly) injection.

      2. When Injection Is Stopped


        • The valve operates according to signals from the ECM to block the oil passage. As a result, the oil supply to the oil jet (No. 1 oil nozzle sub-assembly) is shut off.

          B0056CDC01
          *1 Oil Jet (No. 1 Oil Nozzle Sub-assembly) *2 Valve
          *3 ECM (Operation Signal) *4 Oil Pressure Switching Valve Assembly
          *5 Spring - -
          *a Engine Oil (From Oil Pump) - -

      3. During Injection


        • The valve is operated by the spring to connect the oil passage to the oil jet (No. 1 oil nozzle sub-assembly) and inject oil.

          B0056RTC01
          *1 Oil Jet (No. 1 Oil Nozzle Sub-assembly) *2 Valve
          *3 Oil Pressure Switching Valve Assembly *4 Spring
          *a Engine Oil (From Oil Pump) - -