Low oil level in en-
gine oil reservoir and
also remote oil tank
Low oil level in engine
oil reservoir but not low
in remote oil tank
Note: Oil level in engine
oil reservoir should be
up to the fill cap
Oil level is not low
in either tank
Refill both oil tanks.
Purge air from en-
gine oil tank. Refer
to procedure
Air was never purged from
engine oil tank
Fill cap is leaking air on re-
mote tank
Remote oil hoses blocked or
punctured
Restricted oil outlet filter in re-
mote oil tank
Air leak in upper portion on
the oil pickup tube
Faulty pressure check valve.
Located in engine at end of
(black without blue stripe) re-
mote oil hose
Caps on remote tank must be
sealed and installed tight
Check hoses for a kink or
leakage
Remove filter and clean
Replace tube
Replace check valve
Purge air from engine oil tank.
Refer to procedure
Disconnect blue
wires going to the
low oil float switch in
the engine oil reser-
voir. Check switch
for continuity
Remove screw and pull out
the oil float switch from the
tank. Check switch again for
continuity
Continuity
Oil Float switch is faulty. Re-
place switch
Continuity
Float in oil tank is faulty. Re-
place oil tank
No Continuity
Blue wire is shorted to ground
No Continuity
Problem Problem
Problem
Problem
Oil leaks out of
exhaust
or #6 cylinder
Pulse hose and
oil supply hose
are reversed
Boat oil tank is
mounted higher
than pulse hose
fitting on engine
and oil tank is
over-filled
Continuity
Check continuity with engine run-
ning and electrical system under
load. Refer to Service Bulletin 98-3
OIL INJECTION
Page 3C-16 90-855347R1 JANUARY 1999
Oil System Troubleshooting
Low Oil Warning System is Activated
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