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FUEL SYSTEM
3TNV88F Service Manual
7-11
Fuel Injection Pump
FUEL INJECTION PUMP
Removal of Fuel Injection Pump
1. Loosen the cooling fan V-belt.
2. Remove the engine coolant fan guard (if
equipped), engine coolant fan
,
spacer
if equipped, V-pulley
and cooling fan V-belt
.
Figure 7-6
3. Close any fuel valves in the fuel supply line.
4. Place a drain pan under the fuel injection pump
to catch any spillage.
5. Remove the high-pressure fuel injection lines
as an assembly
(Figure 7-7, (1))
.
Note: To prevent “rounding” the fuel line nuts
always use a “line” or “flare nut” wrench.
When loosening the fuel line nuts,
always hold the fuel injection pump
delivery valves with a “back up” wrench
to prevent loosening of the delivery
valves.
6. First loosen the fuel line nuts at the fuel
injectors and then at the fuel injection pump.
NOTICE
Remove or install the high-pressure fuel injection
lines as an assembly whenever possible.
Disassembling the high-pressure fuel injection
lines from the retainers or bending any of the fuel
lines will make it difficult to reinstall the fuel lines.
7. Finish loosening all the fuel line nuts and
remove the high-pressure fuel lines as an
assembly being careful not to bend any of the
fuel lines. Be sure to protect the fuel system
from contamination by covering all open
connections.
8. Disconnect the fuel return lines from the fuel
return fitting
(Figure 7-7, (2)).
Plug the open
ends of the lines to minimize leakage and
prevent contamination.
Figure 7-7
1
4
3
2
K0000163A
2
1
3
046799-00X00
3TNV88F_SVM_A4.book 11 ページ 2012年7月26日 木曜日 午後6時4分