GENERAL SERVICE INFORMATION
Diesel Fuel
12/05
6LY3 Service Manual
3-7
© 2007 Yanmar Marine International
Handling Diesel Fuel
• Water and dust in the diesel fuel can cause
operation failure. Use containers which are clean
inside to store diesel fuel. Store the containers
away from rain and dirt.
• Allow fuel to settle for several hours before
pumping from container.
• Before refilling fuel, let the fuel container rest for
several hours so that water and dust in the fuel
are deposited on the bottom. Use only clean fuel.
Use the clear filtered fuel from the upper middle
section of the container only (Figure 3-3), leaving
any contaminated fuel at the bottom.
Figure 3-3
Figure 3-3
Diesel Fuel Lines
Install the fuel supply line between the fuel tank and
the fuel injection pump. Install a drain cock at the
bottom of the fuel tank to remove water and dust.
Install a fuel / water separator and a fuel filter in the
middle of the fuel supply line.
Figure 3-4
Figure 3-4
1 – Diesel Fuel Strainer
2 – Diesel Fuel Return Pipe
3 – Diesel Fuel Tank
4 – Drain Cock
5 – Diesel Fuel Shutoff Valve
6 – Approximately 500 mm (20 in.)
7 – Fuel / Water Separator
8 – Diesel Fuel Priming Pump
9 – Less than 500 mm (20 in.)
10 – To Diesel Fuel Injection Pump
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