LUBRICATION SYSTEM ON-VEHICLE INSPECTION

CAUTION / NOTICE / HINT

PROCEDURE

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   INSPECT OIL QUALITY

   
   

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

      If the quality is visibly poor, replace the engine oil and oil filter sub-assembly.

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   INSPECT ENGINE OIL LEVEL

   
   

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

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

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

      Note:

      Do not fill engine oil above the full level mark.

      Tip:

      A certain amount of engine oil will be consumed while driving. In the following situations, 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 oil or oil of an inappropriate viscosity is used.

      • When driving at a high engine speed or with a heavy load, when towing, or when driving while accelerating or decelerating frequently.

      • 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.

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   INSPECT ENGINE OIL PRESSURE

   CAUTION:
   
   

   • To prevent injury due to contact with an operating fan and generator V-belt or cooling fan, keep your hands and clothing away from the fan and generator V-belt and cooling fans when working in the engine compartment with the engine running.

   • To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.

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

   
   

   1. Remove the engine oil pressure switch assembly.

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   2. 

      *a	Oil Pressure Gauge
      *b	Adapter

      Install an oil pressure gauge with the adapter.

      Note:

      Before and after measurement, clean equipment and hoses.

   3. Warm up the engine.

   4. Measure the engine oil pressure, and check that it is within the standard range.

      Standard Engine Oil Pressure
      Condition Specified Condition Idle 29 kPa (0.3 kgf/cm2, 4.2 psi) or higher 3000 rpm 245 kPa (2.5 kgf/cm2, 36 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, replace the timing chain case assembly.

      Tip:

      Replace the timing chain case assembly as the engine oil pump is built into the timing chain case assembly.

   5. Remove the oil pressure gauge and adapter.

   6. Install the engine oil pressure switch assembly.

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