Yanmar 6BY2 - Remove Flywheel

ENGINE
Flywheel and Flywheel Housing
12/05
BY Service Manual
5-39
© 2009 Yanmar Marine International
Drive Coupling Torque
4. Remove flywheel holding tool.
5. Install flywheel housing. See Remove and
Install Flywheel Housing on page 5-37.
Remove Flywheel
1. Remove the flywheel housing and drive
coupling. See Remove and Install Flywheel
Housing on page 5-37 and Remove and Install
Drive Coupling on page 5-38.
2. Remove bolts (Figure 5-68, (1)) retaining the
flywheel.
Figure 5-6 8
Figure 5-68
Note: Flywheel bolts are T-60 Torx head.
3. Remove flywheel. Inspect guide bushing
(Figure 5-68, (3)) in crankshaft and remove if
damaged.
4. Remove torque plate (Figure 5-68, (2)).
5. Inspect the flywheel for damage. Install a new
flywheel if the ring gear teeth are chipped,
broken, or have become so worn that starter
motor pinion will not engage properly.
Item Initial Torque Final Torque
M10 Bolt
15 N·m
(133 in.-lb)
46 N·m
(34 ft-lb)
M8 Bolt
23 N·m
(204 in.-lb)
0006516
(
2
)
(
3
)
(
1
)