Yanmar 3TNV Series Service Manual page 100

Point3: (Refer to 7.2.5 in chapter 7)
[Disassemble]
Remove the mounting nut of the fuel injection
pump drive gear, remove the gear using the gear
puller, and remove the fuel injection pump. Do
not forget to remove the stay on the rear side.
When extracting the gear using the gear puller,
use a pad at the shaft and carefully operate so as
not to damage the thread.
[Reassemble]
Tightening torque for fuel pump drive gear nut
(without lube. Oil)
Model
TNV82A 88
4TNV94L/98/106(T)
Point4
[Reassemble]
Assemble crankshaft gear A, fuel injection pump
drive gear B and camshaft gear C at the same
time by aligning with idle gear A, B and C marks.
Install the idle gear shaft with the oil hole facing
upward.
Point5
[Reassemble]
Install the PTO drive gear with its inner spline side
facing the flywheel.
Point6
[Disassemble]
Install a bolt as a handle in the hole at the end
face of the flywheel and remove carefully so as
not to damage the ring gear.
[Reassemble]
Flywheel mounting bolt : apply lube oil
Model
3TNV82A 88
4TNV94L/98/106(T)
Point7
[Disassemble]
Measure the camshaft side gap.
Item Standard
Side gap 0.05 0.20
If the measured side gap exceeds the limit,
replace the thrust metal.
N m(kgf-m)
Tightening torque
78 88 (8.0 9.0)
113 123 (11.5 12.5)
N m(kgf-m)
Tightening torque
83.3 88.2 (8.5 9.0)
186.2 205.8 (19.0 21.0)
Limit
0.30
4. Disassembly, Inspection and Reassembly of Engines
mm
85