Yanmar 6BY2 - Remove and Install Vibration Damper - 6 BY2

ENGINE
Camshaft and Timing Gear Train
12/05
BY Service Manual
5-47
© 2009 Yanmar Marine International
8. Install special tool OEM No. 11 6 310
(Figure 5-83, (1)) onto the vibration damper.
Figure 5-83
Figure 5-83
9. Tighten bolt to specification with an angled
torque wrench (Figure 5-83, (2)).
Specifications
10. Install starter motor. See Remove and Install
Starter Motor on page 10-5.
11. Install alternator and seawater pump belts. See
Remove and Install Alternator on page 11-5
and Replace Seawater Pump Belt on
page 7-19.
12. Connect battery negative (-) cable.
Remove and Install Vibration
Damper - 6BY2
1. Disconnect battery negative (-) cable.
2. Remove alternator and seawater pump drive
belts. See Remove and Install Alternator on
page 11-5 and Replace Seawater Pump Belt on
page 7-19.
3. Remove bolts (Figure 5-84, (1)).
Figure 5-8 4
Figure 5-84
4. Remove the vibration damper.
5. Install vibration damper on crankshaft and
install new bolts.
6. Torque-turn tighten bolts diagonally to
specification.
Specifications
7. Install alternator and seawater pump belts. See
Remove and Install Alternator on page 11-5
and Replace Seawater Pump Belt on
page 7-19.
8. Connect battery negative (-) cable.
Vibration Damper Bolt
Torque
Specification
Initial Torque 100 N·m (74 ft-lb)
Second Torque Additional 60°
Third Torque Additional 60°
Final Torque Additional 30°
0003833
(1)
(2)
Vibration Damper Bolt
Torque
Specification
Initial Torque 40 N·m (30 ft-lb)
Second Torque Additional 60°
Third Torque Additional 60°