12
12-13
3. Oil Pressure Measurement
Service standards
Tightening torque (Unit: N·m {kgf·m})
Lubricant and/or sealant
• Remove the 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.
• After taking the measurements, wrap the threads of the engine
oil pressure switch with teflon tape and then tighten the switch to
the specified torque.
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
145 to 295 kPa
{1.5 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 15 to 22 {1.5 to 2.2}
Sealant
With cold engine
Mark Points of application Specified lubricant and/or sealant Quantity
– Engine oil pressure switch threads Teflon tape 3 1/2 turns
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