Yanmar 3TNV82A-B, Service Manual

Page: 311 / 394

LUBRICATION SYSTEM
TNV DI Service Manual 9-13
Trochoid Oil Pump
6. Reinstall the gear case cover and crankshaft
pulley. See Installation of Gear Case Cover on
page 6-97.
7. Reinstall the engine coolant pump V-pulley
(Figure 9-13, (1)), spacer (Figure 9-13, (2)),
engine cooling fan (Figure 9-13, (3)) and
engine cooling fan guard (if equipped).
Figure 9-13
8. Reinstall the V-belt. Tighten the V-belt to the
proper tension as described in Check and
Adjust Cooling Fan V-Belt on page 5-22.
TROCHOID OIL PUMP
3TNV82A-B, 3TNV88-B, 3TNV88-
U, 4TNV88-B4TNV88-U,
3TNV84T-Z, 4TNV84T-Z
Oil Pump
Components
The oil pump on these model engines is located in
the front gear case and is driven by the same gear
train that drives the camshaft and fuel injection
pump. You must remove the front gear case cover
to gain access to the oil pump.
1 – Body
2 – Shaft
3 – Inner rotor
4 – Outer rotor
5 – Cover
6 – Drive gear
7 – Pressure regulator valve
Figure 9-14
(1)
(2)
(3)
0000163C
(3) (7) (1) (2) (6)
(5) (4)
TNV_DI_SM_A4.book 13 ページ ２００７年１２月６日 木曜日 午前９時２３分