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 15 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 shown in the figure.
3. If it is out of range, adjust it.

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 oil leakage around the following areas:
- Oil pan
- Oil pan drain plug
- Oil pressure switch
- Oil filter
- Intake valve timing control cover
- Intake valve timing control solenoid valve
- Front cover
- Chain tensioner cover
- Mating surface between cylinder block and cylinder head
- Mating surface between cylinder head and rocker cover
- Crankshaft oil seals (front and rear)

OIL PRESSURE CHECK

WARNING:
- Be careful not to burn yourself, as engine oil may be hot.
- Oil pressure check should be done in "Parking position".
1. Check the engine oil level. Refer to "ENGINE OIL LEVEL".
2. Remove front engine undercover with power tool.





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

CAUTION:
Never drop or shock oil pressure switch.





4. Install oil pressure gauge and hose (SST).
5. Start engine and warm it up to normal operating temperature.
6. Check the engine oil pressure with engine running under no-load.

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





If difference is extreme, check oil passage and oil pump for oil leakage.
7. After the inspections, install oil pressure switch as follows:
a. Remove old liquid gasket adhering to oil pressure switch and engine.
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.

Torque: 14.7 N�m (1.5 kg-m, 11 ft-lb)

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