Yanmar 6LY3 series - Removing the Fuel Filter and Fuel Hoses; Removing the Air Silencer; Removing the Mixing Elbow; Removing the Turbocharger

ENGINE
Disassembling the Engine and Components
12/05
6LY3 Service Manual
5-19
© 2007 Yanmar Marine International
Removing the Fuel Filter and Fuel
Hoses
1. Remove the fuel feed pump hose
(Figure 5-3, (3)), fuel pump hose
(Figure 5-3, (4)) and the fuel nozzle
hose (Figure 5-3, (1)).
2. Remove the fuel filter from the engine.
Figure 5-3
Figure 5-3
1 – Fuel Nozzle Hose
2 – Fuel Filter Assembly
3 – Fuel Feed Pump Hose
4–Fuel Pump Hose
5 – Drain Plug
6 – Hose to Fuel Pump
Removing the Air Silencer
1. Remove the breather hose (Figure 5-4, (3))
from the air silencer (Figure 5-4, (2)).
2. Remove the air silencer from the turbocharger
(Figure 5-4, (5)).
Figure 5-4
Figure 5-4
1 – Intake Air Hose
2 – Air Silencer
3 – Breather Hose
4 – Mixing Elbow
5 – Turbocharger
Removing the Mixing Elbow
1. Remove the seawater hose connected to the
mixing elbow (Figure 5-4, (4)).
2. Remove the mixing elbow from the
turbocharger.
Removing the Turbocharger
1. Remove the intake pipe (turbine-intake
manifold).
2. Remove the turbine oil return line from the oil
pan side of the engine that goes to the oil pan.
3. Remove the turbine oil line (oil cooler-turbine).
4. Remove the turbine.
Removing the Coolant Hoses
1. Remove the seawater hose between the
seawater pump and heat exchanger.
2. Remove the coolant hose between the coolant
pump, the heat exchanger and the exhaust
manifold.
3. Remove the coolant hose between the oil
cooler and coolant pump.
Removing the Intercooler
1. Remove the intake air hose.
2. Remove the seawater hoses.
• Heat Exchanger
• Intercooler (Figure 5-5, (3))
• Oil Cooler (Figure 5-5, (1))
3. Remove the intercooler.
Figure 5-5
Figure 5-5
1 – Oil Cooler
2 – Oil Filter
3–Intercooler
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0005774
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