184
OILING SYSTEM
OILING SYSTEM TESTS
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 wind-
ing and connectors, and the oil injector control cir-
cuit of the
EMM
. Check continuity of all wiring and
connections.
Disconnect the battery cables at the battery.
Use an appropriate test probe to make a connec-
tion to pin 1 of the oil injection pump connector.
Calibrate a digital multimeter to the LOW OHMS
scale and measure the resistance between pin 23
of the
EMM
J1-B connector and pin 1 of the oil
injection pump connector.
Results:
•
An infinite reading (
∞
) indicates an open circuit.
Isolate the faulty wiring, connection, or injection
pump winding. Repair faulty wiring or replace
faulty component and retest.
•
For a higher than expected reading, test resis-
tance of the injection pump. If injection pump
resistance reading is approximately 22
Ω
, injec-
tion pump winding is good. Isolate faulty com-
ponent. Repair faulty wiring or replace faulty
component and retest.
Oil Injection Pump Function Test
Remove oil distribution hose from fitting at oil dis-
tribution manifold. Do not lose the brass hose sup-
port.
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 Injection Pump Resistance
22
Ω
1.
Oil injection pump connector (pin 1)
006572
1
1.
Oil distribution hose
2.
Hose support
002362
002377
2
1
Summary of Contents for E75DPLSCB
Page 1: ...2008 SC E TEC 75 90 P N 5007527 75 90 HP 5007527 Service Manual ...
Page 2: ......
Page 231: ...POWERHEAD POWERHEAD VIEWS 229 11 POWERHEAD VIEWS Port Short Block Starboard Short Block ...
Page 232: ...230 POWERHEAD POWERHEAD VIEWS Port Dressed Powerhead Starboard Dressed Powerhead ...
Page 233: ...POWERHEAD POWERHEAD VIEWS 231 11 Front ...
Page 234: ...232 POWERHEAD POWERHEAD VIEWS Rear ...
Page 235: ...POWERHEAD POWERHEAD VIEWS 233 11 Top ...
Page 302: ...S 2 ...
Page 349: ...2008 SC E TEC 75 90 P N 5007527 75 90 HP 5007527 Service Manual ...