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FUEL SYSTEM
IMPORTANT!
• Always fit a fuel/water separator in the fuel supply
system. Water in the fuel can seriously damage the
injection system.
• If a fuel supply shutoff valve is fitted do not use a
taper tap, only use a ball valve tap. The ball valve type
are more reliable and less likely to let air into the fuel
system.
• Be sure to use a strainer when filling the fuel tank.
Dirt or sand in the fuel may cause trouble in the fuel
injection pump.
• Always use diesel fuel. Do not use paraffin /
kerosene, which is very low in cetane rating, and
adversely affects the engine.
• Bio-diesel fuel can be added to the normal diesel fuel
up to a maximum limit of 5% without affecting the
warranty.
FUEL FILTER REPLACEMENT
1. The fuel filter is a spin on type. Remove by turning
anti-clockwise when viewed from below.
2. Replace the fuel filter cartridge every 750 hours or
every 2 years. See photo 40.
3. Apply fuel oil thinly over the gasket and tighten into
position - hand tight.
4. Bleed as detailed - see 'initial start up'.
5. Check for leaks.
6. Do not get fuel on the flexible mounts, this will
degrade the rubber.
• We know that some customers are using 100%
Biodiesel fuel, if you use a higher percentage of Bio-
diesel fuel you must fit an electric lift pump into the
fuel supply line, and the fuel filter and oil filter must
both be changed together when the oil filter is
normally replaced.
IMPORTANT!
Beta Marine warranty will not cover fuel equipment
when more than 7% Biodiesel is used.
• Be careful not to let the fuel tank become empty, or air
can enter the fuel system, necessitating bleeding
before next engine start.
• The fuel lift pump will only lift fuel through 0.25m.
If this is insufficient then an electric fuel lift pump
must be fitted. Drawing 202-06421, illustrating
recommended wiring for this pump can be supplied
upon request.
40
34
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