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SECTION 3
LUBRICATING SYSTEM
3.1 CHECKING AND ADJUSTING 3. 1.1 Engine Oil Pressure
1. Remove the engine oil pressure switch, and install an
oil pressure gauge.
2. Start the engine. After warming up, read the oil pres-
sure at idling and at rated speeds.
3. If the oil pressure is less than the allowable limit,
check the following:
Engine oil sufficient
Oil pump defective
Oil strainer clogged
Oil filter cartridge clogged
Oil gallery clogged
Excessive oil clearance
Relief valve stuck
At Idle Speed
Factory
Specification
More than 98 kPa
1.0 kgf/cm
2
14 psi
Allowable
Limit
50 kPa
0.5 kgf/cm
2
7psi
At R ated Speed
Factory
Specification
300 to 440 kPa
3.0 to 4.5 kgf/cm
2
43 to 64 psi
Allowable
Limit
250 kPa
2.5 kgf/cm
2
36 psi
(When Reassembling)
After checking the engine oil pressure, tighten the
engine oil pressure switch to the specified torque.