CHAPTER 3
FUEL
INJECTION
EQUIPMENT
Printed
in Japan
lllNSHI-H8009
1. Fuel Injection Pump Service Data··················3-1
1-1
3JH3(B)(C)E··········································3·1
1-2
4JH3(B)(C)E ····· ······ ···•· ······ ······· ·············3-1
2.
Governor
················································3-4
2-1
Cold start knob (
For
4JH3(B)(C)E
only)
·········3-4
2-1
Disassembly Reassembly
and Inspection
of
Governor ·········3-6
2-3 Assembling governor
······•·······
········· ····3-1 0
3.
Disassembly, Reassembly and
Inspection
of
Fuel Injection
pump
·········3-14
3-1
Disassembly of fuel injection pump ·········3-15
3-2 Inspection of fuel injection pump ·•··· ····· ··3-19
3-3 Reassembly of fuel injection pump············3-20
4.
Adjustment
of
Fuel
Injection
Pump
and
Governor
···3-24
4-1
Preparations ·· ······ ··········· ···· ······•· ···· ··· ·3-24
4-2 Adjustment of top clearance ··
··
··•··· ···· ····4-25
4-3 Adjusting of injection timing
·····················3·26
4-4 Plunger pressure test ········ ····· ··············3-27
4-5 Delivery valve pressure test •······•··•····· ··3-27
4-6 Adjusting injection volume
(uniformity of each cylinder) ·········3-27
4-7 Adjustment of governor
························3-28
5.
Fuel Feed Pump ··· ··· ··· ······ ··· ···
···
··· ····
··
··· ··· ···3-30
5-1
Construction of fuel feed pump
···············3-30
5-2 Fuel feed pump specifications··················3-30
5-3
Disassembly
and
reassembly
of
fuel
feed
pump
· · · · · ·
3-31
5-4 Plunger pressure test ··•·•·•··•···· ··· ···•· ·····3-27
6.
Fuel Injection Nozzle
·································3-32
6-2 Functioning of fuel injection nozzle ·········3-32
6-2 Fuel injection nozzle disassembly ········ ··· ·3-33
6-3 Fuel injection nozzle inspection
···········
····3-34
6-4 Fuel injection nozzle reassembly ············3-34
6-5 Adjusting fuel injection
nozzle················
··3-35
7. Trouble shooting
of
fuel injection
pump
······3-36
7-1
Troubleshooting of fuel injection pump ······3-36
7-2 Major faults and troubleshooting
············3-36
8.
Tools
······················································3-38
9.
Fuel filter ··•··· ········· ······
··················
··· ······3-40
9-1
Fuel filter specifications
········
········ ···· ····3-40
9-2 Fuel filter inspection
··············
········ ········3-40
10. Fuel Tank
················································3-41
11. Troubleshooting (Concerning engine
fuel
injection equipment) ······3-42
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