Mariner Mercury 105/140 JET, Руководство по обслуживанию

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90-824052R3 JUNE 2002 FUEL SYSTEMS - 3E-1
CAUTION
Be careful not to get dirt or other contamination
in tanks, hoses or other components of the oil
injection system during installation.
CAUTION
Engines with oil injection must be run on a fuel
mixture of 50:1 for the first 30 gallons of fuel.
Refer to engine break-in procedure in the
Operation and Maintenance Manual.
CAUTION
If an electric fuel pump is to be used on engines
with oil injection, the fuel pressure at the engine
must not exceed 4 psi. If necessary, install a
pressure regulator between electrical fuel pump
and engine and set at 4 psi maximum.
Operation of the Oil Injection
System
The oil injection system delivers oil mixture on engine
demand, from 100 to 1 at idle to 50 to 1 at wide open
throttle.
The remote oil tank can be removed from the boat for
easy refilling. The remote 3 gallon tank holds enough
oil for over 150 gallons of fuel at wide open throttle.
The remote oil tank supplies the oil reservoir
mounted on the engine. The oil reservoir feeds the oil
pump and contains enough oil for at least 30 minutes
of full throttle running after the remote tank is empty.
The warning horn will sound if the oil level in oil
reservoir is low.
The oil injection pump feeds oil into the fuel just
before the fuel pump on carb models and into the
vapor separator on EFI models. The oil injection
pump is driven by the crankshaft and is connected to
the throttle linkage for metering the varied flow of oil
per engine RPM. The motion sensor will sound the
warning horn if the drive system for the injection
pump becomes inoperative.
FINAL CHECKS BEFORE OPERATION OF
ENGINE
•
Make sure fill cap gaskets are in place and caps
are tight on engine oil reservoir and remote oil
tank.
•
Mix a gasoline and oil mixture of 50:1 in the re-
mote fuel tank during the initial break-in of the en-
gine.
•
Be certain the warning horn is installed and is
operational. Refer to Instrument and Warning
Horn Installation.
•
Each time the key switch is turned from the “off”
to “on” position (engine not running); the warning
horn will sound momentarily. This tells you the oil
injection module and warning horn is operational.
If warning horn does not sound or horn stays on
when key is turned to the “ON” position, refer to
oil injection system troubleshooting chart follow-
ing to correct the problem.
CHECKING OPERATION OF THE OIL
INJECTION SYSTEM (ENGINE RUNNING)
1. Operate engine following the break-in procedure
outlined in the Operation and Maintenance
Manual. If warning horn should sound an
intermittent “beep,” “beep,” “beep” during
operation, this indicates a problem occurred in
the oil injection system. Refer to troubleshooting
following, to correct the problem.
2. After engine has been run for a short time, open
cowl and check that no oil is leaking out of engine
oil reservoir fill cap.