Mercury 30 Service Manual

3C-8 - OIL INJECTION SYSTEM 90-826148R2 MARCH 1997
Troubleshooting
Bleeding Air From Oil Injection
System
CAUTION
If air exists in either oil pump hose (inlet or out-
let), the air MUST BE bled from hose(s) or engine
damage may occur.
BLEEDING AIR FROM OIL PUMP INLET HOSE
Withenginenotrunning,placeashoptowelbelowoil
pump.Loosenbleedscrew threetofourturnsandal-
lowair bubblestoexit inlet hose.Torque bleedscrew
to 25 lb. in. (2.8 N·m). This procedure also allows oil
pump to fill with oil.
BLEEDING AIR FROM OIL PUMP OUTLET
HOSE
Purgeairfromoutlethosebyrunningengine(on50:1
gasoline/oilmixtureinfueltank)atidle speeduntil no
air bubbles are present in outlet hose.
52899
c
a
b
a - Bleed Screw
b - Inlet Hose
c - Outlet Hose
Oil Pump Volume (Flow) Test
WARNING
The input fuel line TEE fitting from which the oil
line was removed MUST BE CAPPED OFF to pre-
vent fuel leakage while the engine is running.
NOTE: The following specifications are determined
with the outboard running off a remote fuel supply
with pre-mix fuel. The oil pump output hose (clear)
mustbedisconnectedfromtheinputfuellineTEEfit-
ting and directed into a graduated container. The in-
putfuel lineTEE fitting from which the oilline was re-
moved MUST BE CAPPED OFF to prevent fuel
leakage while the engine is running.
52900
a
b
c
d
a - Bleed Screw
b - Inlet Hose
c - Outlet Hose
d - Cap Off
Flow specifications are as follows:
@900RPMwithoilpumplinkarmDISCONNECTED
and pump arm rotated FULL CLOCKWISE and
HELD AGAINST PUMP CASTING = 8.5cc ± 10% in
10 minutes.

Mercury 30 Specifications

General

Brand	Mercury
Model	30
Category	Outboard Motor
Language	English