Engine Oil: Testing and Inspection

ENGINE OIL


Inspection


ENGINE OIL LEVEL

NOTE:
Before starting engine, put vehicle horizontally and check the engine oil level. If engine is already started, stop it and allow 10 minutes before checking.
1. Pull out oil level gauge and wipe it clean.





2. Insert oil level gauge and check the engine oil level is within the range (A) shown in the figure.
3. If it is out of range, adjust it.

NOTE:
When checking the engine oil level, insert oil level gauge (1) with its tip aligned with oil level gauge guide.






2 : Engine cover
Arrow indicates Engine front


ENGINE OIL APPEARANCE
- Check engine oil for white turbidity or heavy contamination.
- If engine oil becomes turbid and white, it is highly probable that it is contaminated with engine coolant.
Repair or replace damaged parts.

ENGINE OIL LEAKAGE
Check for engine oil leakage around the following areas:
- Oil pans (lower and upper)
- Oil pan drain plug
- Oil pressure switch
- Oil temperature sensor
- Oil filter
- Valve timing control cover
- Mating surface between cylinder head and rocker cover
- Mating surface between front timing chain case and rear timing chain case
- Mating surface between rear timing chain case and cylinder head
- Mating surface between rear timing chain case and cylinder block
- Mating surface between rear timing chain case and oil pan (upper)
- Mating surface between cylinder block and cylinder head
- Mating surface between lower cylinder block and cylinder block
- Crankshaft oil seals (front and rear)
- Camshaft position sensor (PHASE) and intake valve timing control solenoid valve

OIL PRESSURE CHECK

WARNING:
- Be careful not to get burn yourself, as engine oil may be hot.
- Oil pressure check should be done in "Neutral position" (M/T models) or "Parking position" (A/T models).
1. Check the engine oil level.
2. Remove engine undercover with power tool.





3. Disconnect harness connector at oil pressure switch, and remove oil pressure switch using deep socket (commercial service tool).

1 : Oil pressure switch
Arrow indicates Engine front


CAUTION:
Never drop or shock oil pressure switch.





4. Install the oil pressure gauge [SST: ST25051001 (J-25695-1)]
(A) and hose [SST: ST25052000 (J-25695-2)] (B).
5. Start the engine and warm it up to normal operating temperature.
6. Check the engine oil pressure with engine running under no-load.

NOTE:
When the engine oil temperature is low, the engine oil pressure becomes high.

Engine oil pressure : Refer to Specifications.

If difference is extreme, check engine oil passage and oil pump for engine oil leakage.
7. After the inspections, install oil pressure switch as follows:
a. Remove old liquid gasket adhering to oil pressure switch and the mating surface.
b. Apply liquid gasket and tighten oil pressure switch to the specification.
Use Genuine RTV Silicone Sealant or equivalent. Refer to Recommended Chemical Products and Sealants.

Tightening torque : Refer to Exploded View.

c. After warming up engine, check there is no leakage of engine oil with running engine.