LUBRICATION SYSTEM ON-VEHICLE INSPECTION

PROCEDURE


  1. CHECK ENGINE OIL LEVEL

    Note

    When the oil cooler assembly (for air cooled type) has been removed/installed or the oil cooler hose sub-assembly has been disconnected/reconnected, check the engine oil level after warming up the engine oil to between 100°C (212°F) and 120°C (248°F) to open the thermostat between the engine and oil cooler assembly (for air cooled type).

    B002C8GC06
    *1 Thermostat (Thermostat Housing Assembly) *2 Oil Cooler Hose Sub-assembly
    *3 Oil Cooler Assembly (for Air Cooled Type) - -

    Tech Tips

    Enter the following menus: Powertrain / Engine / Data List / Engine Oil Temperature Sensor.


    Powertrain > Engine > Data List
    Tester Display
    Engine Oil Temperature Sensor

    1. Warm up and stop the engine, then wait for 5 minutes.

    2. Check that the engine oil level is between the low level and full level marks on the engine oil level dipstick.

      If the level is low, check for engine oil leaks and add engine oil to the full level mark.

      Note

      Do not fill to above the full level mark.

      Tech Tips

      A certain amount of engine oil will be consumed while driving. In the following situations, engine oil consumption may increase, and engine oil may need to be refilled in between oil maintenance intervals.


      • When the engine is new, for example directly after purchasing the vehicle or after replacing the engine.

      • If low quality engine oil or oil of an inappropriate viscosity is used.

      • When driving at high engine speeds or with a heavy load (when towing, etc.), or when accelerating or decelerating frequently while driving.

      • When idling for a long time, or when driving frequently through heavy traffic.

      When judging the amount of oil consumption, keep in mind that the oil may have become diluted, making it difficult to judge the true level accurately.

  2. CHECK ENGINE OIL QUALITY


    1. Check the engine oil for deterioration, water intrusion, discoloration or thinning.

      If the quality is visibly poor, replace the engine oil and oil filter element.

  3. INSPECT OIL PRESSURE

    CAUTION:


    • B002E26

      When working near the engine room while the engine has started or the power source mode is engine switch on (IG), do not touch the fan and generator V belt or rotating components such as the fan, etc.

    • Touching the fan and generator V belt or rotating components such as the fan, etc. could result in your hand or clothing getting caught and pulled in.


    • B002C8YC11
      *a High temperature areas

      Do not touch the engine or exhaust manifold sub-assembly when they are hot.

    • Touching the engine or exhaust manifold sub-assembly when they are hot could result in burns.


    • A01QBJ5

      To prevent burns, do not remove the engine oil pressure switch assembly while the engine is hot.

    • Removing the engine oil pressure switch assembly while the engine is hot could result in burns caused by contact with hot engine oil.

    Note

    Clean the hose and adapter of the oil pressure gauge before and after measurement.


    1. Remove the engine oil pressure switch assembly.

      Click here

    2. A01QAUW

      Install an oil pressure gauge with the adapter.

    3. Warm up the engine.

      Tech Tips

      After warming up the engine, the engine coolant temperature is 75 to 100°C (167 to 212°F).

    4. Check the oil pressure.

      Standard Oil Pressure
      Condition Specified Condition
      Idling

      70 kPa (0.7 kgf/cm2, 10.2 psi) or higher
      2500 rpm

      220 kPa (2.2 kgf/cm2, 32 psi) or higher

      If the result is not as specified, check the quality of the engine oil and check the oil paths for clogging. Repair or replace if necessary. If the engine oil pressure is still not as specified, check the timing chain cover assembly.

      Click here

    5. Remove the oil pressure gauge with the adapter.

    6. Install the engine oil pressure switch assembly.

      Click here

    7. Inspect for engine oil leaks.

      Click here