Evinrude E-tec 75 HP, Service Manual

Page: 179 / 344

179
OILING SYSTEM
COMPONENTS
8
COMPONENTS
The oiling system consists of the following compo-
nents:
•
Oil tank and injection pump and manifold
assembly (includes distribution manifold and
pressure switch)
•
Oil pressure switch
•
SystemCheck
LOW and NO OIL warning sig-
nals
•
Cylinder and crankcase
•
Oil recirculation system
Oil Tank Assembly
The oil tank is powerhead mounted and should be
properly monitored for oil level and condition. The
oil injection pump and manifold assembly distrib-
utes the oil supplied by the oil injection pump. A
pressure-sensing switch monitors oil injection
function.
Capacity
•
75 – 90 HP models – 3 qt. (2.8 l)
Oil injection pump and manifold assembly and fill
cap are included with oil tank assembly.
Oil Injection Pump and Manifold Assembly
Components
•
Oil injection pump and distribution manifold
•
Pickup tube and filter
•
Low oil sending unit
•
Oil pressure switch
•
Oil distribution hoses
•
Check valve, oil to fuel
Oil Pressure Switch
The oil pressure switch is located in the oil distri-
bution manifold and reacts to changes in oil mani-
fold pressure. The
EMM
supplies and monitors
electrical current to the switch. The switch opens
or closes based on oil distribution manifold pres-
sures. See
NO OIL Warning Test on p. 188.
Service Codes
Code 38
A lack of oil pressure in the oil distribution mani-
fold, or an inoperative pressure switch activates
service code 38 (oil pressure feedback not
detected for 255 cycles) and the
EMM
:
002338
1. Oil injector pump
2. Oil distribution manifold
3. Pickup tube and filter
4. Low oil sending unit
5. Oil pressure switch
002208
Activates the
SystemCheck
"NO OIL" light
Activates
EMM
LED: “NO OIL/OVERHEAT”
Stores a service code 38
Initiates
S.A.F.E.
2
5
1
4
3