Remove Flywheel - Yanmar BY Series Service Manual

Flywheel and Flywheel Housing
12/05
Drive Coupling Torque
Item Initial Torque
M10 Bolt
(133 in.-lb)
M8 Bolt
4. Remove flywheel holding tool.
5. Install flywheel housing. See Remove and
Install Flywheel Housing on page 5-37.
BY Service Manual
Final Torque
46 N·m
(34 ft-lb)
15 N·m
23 N·m
(204 in.-lb)
© 2009 Yanmar Marine International

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 5-68
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.
ENGINE
( 2 )
( 1 )
( 3 )
0006516
5-39