OILING SYSTEM TESTS
IMPORTANT: Always perform visual inspections to identify oiling system leaks. Make sure the oil tank is filled and oil supply is not contaminated.
Oil Injection Pump Static Test
IMPORTANT: Do NOT perform static tests using Diagnostic Power Supply Tool, P/N 587005, with internal 9 volt batteries only. This will produce false results. Refer to Communication on p. 109.
Use Evinrude Diagnostics software to activate the Oil Injector test. This test starts the EMM control function for the oil injection pump.
The EMM controls the pump by providing ground through pin 23 (blue wire) of the J1-B connector and pin B (blue wire) of the oil tank connector.
Static Tests Screen
- Oil injector test button
IMPORTANT: This test is operating the pump with 12 V battery power on the system voltage (55 V) circuit. The oil injection pump will not activate on 12 V.
Use an inductive timing light to monitor current flow through the ground circuit (blue wire) at the oil tank connector (pin 2).
If the light flashes, the EMM and oil injection circuits are not at fault.
Refer to Oil Injection Pump Voltage Test on p. 204.
Oil Injection Pump Voltage Test
Use a digital multimeter with appropriate adapter leads to check voltage at pin A (white/red wire) of oil tank electrical connector.
Acceptable voltage readings:
Key switch ON: slightly less than 12 V
Outboard running: 55 V
Results:
If voltage is not within range, refer to Oil Injection Pump Circuit Resistance Test on p. 205.
No voltage reading, refer to System Voltage Test on p. 124.
Monitor the voltage on the oil injector circuit at pin B (blue wire) of oil tank connector, or pin 23 (blue wire) of the EMM J1-B connector, with out board running at 1500 RPM.
Use an appropriate test probe and a digital multi meter calibrated to a scale that reads 55 V (DC). Connect positive meter lead to pin B and negative meter lead to ground.
- Oil injection pump connector (pin 2)
Voltage reading should be approximately 55 V, and drop approximately 5 V as EMM actuates oil injection pump.
Oil Injection Pump Circuit Resistance Test
IMPORTANT: The complete oil injection pump electrical circuit includes EMM alternator output, the engine wire harness, the injection pump winding and connectors, and the oil injector control circuit of the EMM. Check continuity of all wiring and connections.
Disconnect the battery cables at the battery.
Use a digital multimeter with appropriate adapter leads to measure the resistance between pin 23 (blue) of the EMM J1-B connector and pin A (white/red) of the oil injection pump connector. Calibrate the meter to the LOW OHMS scale.
Oil Injection Pump Circuit Resistance
22 Ω
- EMM J1B connector (pin 23)
Results:
An infinite reading (∞) indicates an open circuit. Isolate the faulty wiring, connection, or injection pump winding. Repair faulty wiring or replace faulty pump.
For a higher than expected reading, test resistance of the injection pump. If
injection pump resistance reading is within range, injection pump winding is good. Isolate faulty component. Repair faulty wiring or replace faulty component and retest.
Oil Injection Pump Function Test
Remove oil distribution hose from fitting at oil distribution manifold. Do not lose the brass hose sup port.
- Retainer mechanism
008067 Temporarily install a length of oil hose.
Start the outboard and observe oil flow:
Oil flows from hose, compare to oil flow at other distribution fittings
If one or more fittings fail to flow oil, replace the oil injection pump assembly.
Reinstall hose into manifold.
IMPORTANT: Make sure hose support is in hose and hose is fully inserted into manifold. Refer to Oil Distribution Hoses on p. 206.
Oil Injection Fittings Flow Test
Make sure the oil injection fittings of the cylinder and crankcase assembly allow fluid to move.
Remove oil distribution hose from oil distribution manifold.
Use a Syringe, P/N 346936, filled with isopropyl alcohol to force fluid through hose and fitting.
- Syringe
LOW OIL Sending Unit Test
Remove oil from the oil tank.
Turn the key switch ON. The dash mounted Engine Monitor system should show a LOW OIL warning.
Once the warning has been confirmed, refill the oil tank and start the outboard. The LOW OIL warning should stop after the oil pump cycles 3 times.
OIL COMPONENT SERVICING
To prevent accidental starting while servicing, twist and remove spark plug leads.
Oil Distribution Hoses
The oil distribution hoses to each cylinder MUST be the same length. DO NOT alter the length of any hoses.
Oil Distribution Hose Length:
- 20 in. (508 mm)
Removal
Release the hose by depressing the outer ring of the hose retaining mechanism.
- Retainer mechanism
Once hose is removed from the manifold, make sure hose support is in the end of the hose.
- Hose support
008070
