12
12-15
3. Oil Pressure Measurement
Service standards
Tightening torque (Unit: N·m {kgf·m})
• Remove the Mitsubishi 6M70 engine oil
pressure switch.
• Using an adapter, connect an oil pressure gauge to the engine
oil pressure switch mounting hole.
• Warm up the engine until the oil temperature reaches 70 to
90
°C.
• Measure the oil pressure while running the engine at a minimum
speed and then at maximum speed, both under no load.
• If the measurements are below the specified limits, overhaul the
lubrication system.
CAUTION
• Reinstall the oil pressure switch only when the engine is
cold.
Location Maintenance item Standard value Limit Remedy
–
Oil pressure (oil tempera-
ture at 70 to 90°C)
No-load minimum speed
135 to 295 kPa
{1.4 to 3 kgf/cm
2
}
49 kPa
{0.5 kgf/
cm
2
}
Inspect
No-load maximum speed
295 to 490 kPa
{3 to 5 kgf/cm
2
}
195 kPa
{2 kgf/cm
2
}
Mark Parts to be tightened Tightening torque Remarks
– Engine oil pressure switch 24.5 ± 4.9 {2.5 ± 0.5} With cold engine
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