ENGINE
Assembling the Engine and Components
5-56 6LY3 Service Manual
© 2007 Yanmar Marine International
Installing the Piston Cooling Nozzles
1. Place each piston cooling nozzle
(Figure 5-81, (1)).
2. Ensure that the nozzle end is positioned on the
piston head side.
3. Check that the cooling nozzle does not touch
the cylinder block.
4. Install the piston cooling nozzles for each
piston.
Figure 5-81
Figure 5-81
1 – Piston Cooling Nozzle
Installing the Camshaft Bearings
1. Apply oil to the outer surface of each bearing
(Figure 5-82, (1)) and mounting surface of the
cylinder block and then press the bearing into
its position using a driving tool. Check the
position of each oil hole. More than 2/3 area of
a hole should be aligned.
Forward: A=2
Middle: A=1.5
Aft: A=0.5
Figure 5-82
Figure 5-82
1–Bearing
2. After installation, check each bearing for
distortion by measuring the inner diameter of
bearing.
Piston Cooling Nozzle Torque
19.6 N·m (2.0 kgf·m) (14.4 lb-ft)
0005781
(1)
Inner Diameter After Press-Fitting
57 + 0.05 / -0.02 mm
(2.2440 + 0.0019 / -0.0007 in.)
A
0005782
(1)
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