Installing The Crankshaft - Yanmar 6LY3 series Service Manual

Assembling the Engine and Components
12/05

Installing the Crankshaft

1. Apply engine oil to each crank journal
(Figure 5-83, (1)) of the cylinder block
(Figure 5-83, (2)) and each mating side of the
main bearing inserts. Bearings with an oil
groove should be positioned on the upper side
(block side). Install thrust bearings so that oil
grooves are positioned to the outside.
Figure 5-83
(2)
Figure 5-83
1 – Crank Journal
2 – Cylinder Block
Figure 5-84
Figure 5-84
6LY3 Service Manual
2. Lubricate each crank pin and crank journal. Set
3. Lubricate both surfaces of each cap side main
4. Oil the bolt holes of each bearing cap. Install
(1)
Figure 5-85
0005783
0005784
© 2007 Yanmar Marine International
each journal in the main bearing of the block.
bearing and install each main bearing insert to
the cap.
bearing caps (Figure 5-85, (2)). Tighten each
cap bolt to the specified torque value. NOTICE:
Check that the arrow mark (Figure 5-85, (1)) on
each bearing cap faces in the flywheel direction
and that the match mark on each cylinder is
correctly aligned.
Bearing Cap Bolt Torque
M15, 14 Bolts
Figure 5-85
1 – Arrow Mark
2 – Bearing Caps
ENGINE
235 ± 10 N·m
(24 ± 1 kgf·m)
(173 lb-ft)
(2)
(1)
0005785
5-57