Yanmar 6LY3 series Service Manual

ENGINE
Assembling the Engine and Components
5-58 6LY3 Service Manual
© 2007 Yanmar Marine International
5. Check that the crankshaft rotates smoothly.
6. Set a dial indicator (Figure 5-86, (1)) on the
cylinder block and measure end play of the
crankshaft.
Figure 5-86
Figure 5-86
1–Dial Indicator
Installing the Oil Pump
1. Set the oil pump idler gear (Figure 5-87, (1))
and shaft in the main bearing cap.
Figure 5-87
Figure 5-87
1 – Oil Pump Idler Gear
2. Install the oil pump (Figure 5-88, (1)) with the
position pin. Secure the pump by tightening
three M10 x 55 mm bolts to the specified torque
value.
Figure 5-88
Figure 5-88
1 – Oil Pump
3. Measure the gear backlash between the oil
pump and idler gear and compare to the value
specified below:
End Play of the Crankshaft
0.132-0.223 mm
(0.0051-0.0087 in.)
Oil Pump Idler Gear Specifications
Side Clearance
0.10 - 0.30 mm
(0.0039-0.0118 in.)
Tightening Torque
64 ± 2 N·m
(6.5 ± 0.2 kgf·m)
(47 ± 1.4 lb-ft)
(1)
0005786
Gear Backlash
0.12 ± 0.04 mm
(0.0047 ± 0.001)
(1)
0005787
0005788
(1)

Yanmar 6LY3 series Specifications

General

Brand	Yanmar
Model	6LY3 series
Category	Engine
Language	English