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STEYR MO156K25 User Manual

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36
Fuel Pump
The STEYR MOTORS Marine Engine is equipped with an electric fuel pump. It is turned “ON” and “OFF” with the
key switch. If the engine is not started within 10 seconds after turning the key switch “ON”, the fuel pump is automati-
cally turned off.
Fuel System Checks
Fill the tank with the recommended fuel. Keeping tanks full reduces water condensation and helps keep fuel cool,
which is important to engine performance.
Make sure that fuel supply valves (if used) are open, and valve cock seals are absolutely (gas) tight.
To insure a prompt start and an even run of the engine, the fuel system is to be rinsed by means of the electric fuel
pump (ignition “ON” several times for app. 10 sec.) before starting the engine the first time and/or after every replace-
ment of a fuel filter.
Refill at the end of each day’s operation to prevent condensation from contaminating the fuel. Condensation formed
in a partially filled tank promotes the growth of microbial organisms that can clog fuel filters and restrict fuel flow.
If the engine is equipped with a fuel/water separator, drain off any water that has accumulated. Water in fuel can
seriously affect engine performance and may cause engine damage. STEYR MOTORS recommends to install a fuel/
water filter with a flow rate of at least 300 l/h at a pressure difference of <200 mbar.
Fuel Contamination
In the marine environment, the most likely fuel contaminants are water and microbial growth (black “slime”). Gener-
ally, this type of contamination is the result of poor fuel handling practices. Black “slime” requires water in the fuel to
form and grow; the best prevention is to keep water content in storage tank to a minimum.
Treating fuel with microbial growth requires the use of fuel additive.
STEYR MOTORS does recommend the use of fuel additives such as Biobor JF, or equivalent, for treatment of mi-
crobiological fuel contamination. Follow the manufacturers instructions for use. If treating fuel, frequent fuel filter
changes will be necessary until fuel system is purged.
NOTE: A galvanized steel tank should never be used for fuel storage, because the fuel reacts
chemically with the zinc coating forming powdery flakes which can quickly clog the fuel filters
and damage the fuel pump and injectors.

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STEYR MO156K25 Specifications

General IconGeneral
BrandSTEYR
ModelMO156K25
CategoryEngine
LanguageEnglish

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