LUBRICATION SYSTEM
TNV DI Service Manual
9-17
Trochoid Oil Pump
TROCHOID OIL PUMP
4TNV94L/98/106
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 – Gear Case Housing
2 – Outer Rotor
3 – Inner Rotor
4 – Cover Plate
5 – Drive Gear
Figure 9-22
Disassembly of Oil Pump
Remove the engine cooling fan guard (if equipped),
engine cooling fan (Figure 9-23, (3)), spacer
(Figure 9-23, (2)), engine coolant pump V-pulley
(Figure 9-23, (1)) and V-belt.
Figure 9-23
1. Remove the crankshaft pulley and the gear
case cover. See Removal of Timing Gear Case
Cover on page 6-73.
2. Remove the oil pump assembly bolts. Remove
the oil pump assembly (Figure 9-24, (1)) from
the gear case housing (Figure 9-24, (2)).
0000043A
(5)
(2)
(1)
(3)
(4)
CAUTION
If the oil pump must be replaced, replace
it as an assembly only. Do not replace
individual components.
0000030en
(1)
(2)
(3)
0000163C
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