Oil pressure check
- After removing the flywheel cover as described in the "Flywheel" chapter, remove the electrical con-
nexion of the minimum oil pressure switch and then remove the switch.
- With engine idling at 1650 rpm check that the oil pressure is between 0.5 ÷ 1.2 atm.
- With engine at 6000 rpm check that the oil pressure is between 3.2 ÷ 4.2 atm.
- Remove the appropriate tools once the measurement is complete, refit the oil pressure switch and
washer, tightening it to the specified torque and fit the fan cover.
- If the oil pressure is outside the specified limits, in the following order, check: the oil filter, the oil by-
pass valve, the oil pump and the crankshaft seals.
N.B.
THE CHECK MUST BE CARRIED OUT WITH OIL AT THE CORRECT LEVEL AND WITH AN OIL
FILTER IN GOOD CONDITION.
Characteristic
Oil pressure
Minimum pressure admitted at 6000 rpm: 3.2 atm.
Locking torques (N*m)
Minimum oil pressure sensor 12 ÷ 14
Crankshaft oil seals
MP3 125 Engine
ENG - 59
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