Yanmar 4TNV98, Service Manual

Page: 195 / 246

4TNV98 & 4TNE98 Diesel Engine Section 4. Fuel System 193
Figure 7-43
5. Reinstall the cooling fan (Figure7-44, (1)) ,
spacer (if equipped) (Figure7-44, (2)) and V-belt
(Figure7-44, (3)) .
Figure 7-44
6. Pivot the alternator away from the engine and
adjust the V-belt tension. See Check and Adjust
Cooling Fan V-belt on page 47.
7. Tighten the alternator adjusting bolt. See Check
and Adjust Cooling Fan V-belt on page 47.
8. Pivot the bracket that fastens the fuel injection
pump to the cylinder back up and toward the fuel
injection pump. Retighten the bolt
(Figure 7-45,
(2)) that fastens it to the cylinder block.
Figure 7-45
9. Reinstall the two bolts (Figure7-45, (1)) to the L-
shaped bracket that holds the injection pump at
the bottom / rear. Tighten the two bolts and the
bolt that secures the bracket to the cylinder block
to specified torque.
10. Reinstall the high pressure fuel lines.
• Replace the high pressure fuel lines as an
assembly. Be careful not to bend any of the
high pressure fuel lines.
• Start all the high pressure fuel line nuts by
hand, leaving those nuts on the fuel injection
pump and fuel injectors untightened.
• Tighten the high pressure fuel line nuts
(Figure7-46, (2)) on the fuel injection pump.
• Tighten the high pressure fuel line nuts
(Figure7-46, (1)) on the fuel injectors.