3 Check the actual oil pressure.
AHEAD - go to 4
4 - Remove the switch and fit the special tool with the relevant gasket.
Specific tooling
020193Y Oil pressure gauge
020434Y Oil pressure control fitting
- Remove the dipstick with the oil filling cap and insert a cap fitted with the temperature probe supplied
with the special tool. Insert the probe to feel contact with the crankcase bottom and pull back a few
millimetres.
Specific tooling
020331Y Digital multimeter
AHEAD - go to 5
5 - Measure the pressure with cold and idling engine.
STANDARD VALUES
Specification
Desc./Quantity
20°C Temperature
1400 rpm
approx. 4.5 bar
N.B.
RPM CAN BE MEASURED BOTH BY THE EXHAUST GAS ANALYSER AND BY THE DIAGNOSTIC
TESTER
Specific tooling
020460Y Scooter diagnosis and tester
YES go to 6 NO go to 12
6 - Let the engine warm up and repeat the check with hot oil.
STANDARD VALUES
Specification
Desc./Quantity
80°C Temperature
1400 rpm
approx. 1.5 bar
YES go to 7 NO go to 8
7 - Replace the oil minimum pressure switch.
Nexus 500 euro 3 Engine
ENG - 183
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