Oiling System
Oiling System Tests
172
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 Voltage Tests
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. 69.
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 pump connector.
Use a digital multimeter calibrated to a scale that
reads 12 V (DC) to measure voltage between the
oil pump electrical connector and engine ground.
Connect negative meter lead to ground.
Use an appropriate test probe to connect positive
meter lead to pin B (blue wire) of oil injection
pump electrical connector.
Turn the key switch to the ON position. Observe
voltage at pin B.
• Voltage at pin B should be approximately 12 V.
Use the Oil Injector test of Evinrude Diagnostic
software Static Test screen to activate the oil
pump.
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 pump
oil when operating on 12 V.
Observe voltage at pin B.
• Voltage at pin B should drop as the oil pump
cycles.
Check the control signal while the Oil Injector test
is running. Set the digital multimeter to the Hertz
(Hz) scale.
• Meter should read approximately 5 Hz.
Results:
• If voltage and control signal readings at pin B
are within range, the EMM and wiring are not at
fault.
• If voltage at pin B is not within range, check volt-
age at pin A (white/red wire) of oil pump electri-
cal connector.
Connect positive meter lead to pin A (white/red
wire) of oil injection pump electrical connector.
Observe voltage at pin A.
• Voltage at pin A should be approximately 12 V.
Set digital multimeter to a scale that reads 55 V
(DC).
Start the engine. Observe voltage at pin A.
Acceptable Oil Injection Pump
Test Readings
Key switch ON approximately 12 VDC
Control signal approximately 5 Hz
Engine running approximately 55 VDC
1. Oil injection pump electrical connector
008065
Static Tests Screen
1. Oil injector test button
008082