ENGINE
EA330-E4, WSM
1-S16
(2) Lubricating System
Engine Oil Pressure
1. Remove the oil signal (or oil switch) and install an oil pressure
tester (Code No. 07916-32031) (Adaptor screw size: PT 1/8).
2. Start the engine. After warming up, measure the oil pressure of
both idling and rated speeds.
3. If the oil pressure is less than the allowable limit, check the
following.
• Engine oil insufficient
• Oil pump defective
• Oil strainer clogged
• Excessive oil clearance of bearing
• Foreign matter in the relief valve
• Oil gallery clogged
* When engine oil is 100 to 120 °C (212 to 248 °F)
(When installing)
• Check for oil leakage after installing the oil signal (or oil
switch).
9Y1211018ENS0009US0
Engine oil pressure
At idle speed
More than
50 kPa
0.5 kgf/cm
2
7 psi
At rated speed
(3000 min
-1
(rpm))
250 kPa
2.5 kgf/cm
2
36 psi
Tightening torque
Oil signal /Oil Switch
6.9 to 9.8 N·m
0.70 to 1.0 kgf·m
5.1 to 7.2 lbf·ft
Oil signal holder
15 to 19 N·m
1.5 to 2.0 kgf·m
11 to 14 lbf·ft
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