Yanmar 6LY3 series Service Manual

ENGINE
Assembling the Engine and Components
12/05
6LY3 Service Manual
5-59
© 2007 Yanmar Marine International
Installing the Drive Shaft Housing
Apply sealant gasket to the drive shaft housing and
fit the drive shaft housing to the cylinder body using
a dowel pin to position case.
Secure the drive shaft housing by tightening bolt
listed below:
1. Four M8 x 45 mm bolts
2. Two M8 x 80 mm bolts
Torque bolts to the specified value.
Figure 5-89
Figure 5-89
1 – M8 x 45 mm bolts
2 – M8 x 80 mm bolts
Installing the Camshaft
1. Apply oil to the bearings of the camshaft and
install the camshaft (Figure 5-90, (1)).
Figure 5-90
Figure 5-90
1–Camshaft
2. Place the thrust plate and secure it by
tightening the two M8 x 16 mm bolts.
3. Check end play of the camshaft. NOTICE: If the
cam gear is removed from the camshaft, place
thrust bearing before installing the gear. Heat
the cam gear to between 180°C (356°F) and
200°C (392°F) press it in place. Interference:
0.023 to 0.060 mm.
Installing the Piston Assemblies
1. The piston and connecting rod should be
assembled with the embossed connecting rod
mark (Figure 5-91, (4)) and the stamped “FW”
mark (Figure 5-91, (3)) on the top of the piston
facing in the same direction as shown in
Figure 5-91. Install the piston and connecting
rod assembly with those marks facing the
flywheel end of the engine.
Figure 5-9 1
Figure 5-91
1 – Camshaft Side
2 – Fuel Injection Pump Side
3–“FW” Mark
4 – Embossed Connecting Rod Mark
(Flywheel End)
2. Orient the connecting rod to each piston
(Figure 5-91). NOTICE: Coat all parts with
clean engine oil.
0005789
(
2
)
(
1
)
(
1
)
(
1
)
(
1
)
(
2
)
(1)
0005790
Camshaft Side Clearance
0.05-0.20 mm
(0.0019-0.0078 in.)
0005791
(3)
(4)
(1)
(2)

Yanmar 6LY3 series Specifications

General

Brand	Yanmar
Model	6LY3 series
Category	Engine
Language	English