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FUEL SYSTEM - DISASSEMBLY, INSPECTION AND REASSEMBLY
3 - 10
1. Fuel Injection Nozzles
1.1 Disassembling the fuel injection nozzles
Wear
Fatigue,
Perpendicularity
Wear, Damage
Carbon deposit,
Clogged nozzle hole
Replace: Gasket
Disassembly of the fuel injection nozzle
<Reassembly sequence>
①
Nozzle retaining nut
②
Nozzle tip assembly
③
Piece
④
Pin
⑤
Spring
⑥
Washer
⑦
Nozzle holder
⑧
Gasket
1.2 Inspecting the fuel injection nozzle
Conduct the following inspections and, if faulty,
repair or replace as required.
(1)
Injection valve opening pressure
(a)
Install the fuel injection nozzle onto the nozzle
tester. Pump the tester handle up and down to
bleed air.
(b)
Pump the tester handle at a rate of approx. one
cycle per second while observing the needle of
the tester.
Note: The needle should rise slowly and, during fuel
injection, should vibrate. The pressure at which
the needle starts to vibrate is the injection valve
opening pressure.
Inspecting the injection valve
opening pressure
Nozzle tester
Summary of Contents for diesel engines
Page 5: ......
Page 33: ...SERVICE STANDARDS 1 20 ...
Page 34: ...1 General Tools 1 22 2 Special Tools 1 23 TOOLS LIST ...
Page 37: ...TOOLS LIST 1 24 ...
Page 41: ...OVERHAUL TIMING 1 28 ...
Page 46: ......
Page 47: ......
Page 61: ...ENGINE MAIN PARTS DISASSEMBLY 2 16 ...
Page 99: ...FUEL SYSTEM REMOVAL 3 8 ...
Page 115: ...FUEL SYSTEM DISASSEMBLY INSPECTION AND REASSEMBLY 3 24 ...
Page 119: ...FUEL SYSTEM INSTALLATION 3 28 2 Governor Installing the governor Installation sequence ...
Page 123: ...FUEL SYSTEM INSTALLATION 3 32 ...
Page 131: ...OIL SYSTEM DISASSEMBLY INSPECTION AND REASSEMBLY 4 8 ...
Page 143: ...COOLING SYSTEM DISASSEMBLY INSPECTION AND REASSEMBLY 5 8 ...
Page 150: ......
Page 151: ......
Page 153: ...INLET AND EXHAUST SYSTEMS REMOVAL 6 4 ...
Page 159: ...INLET AND EXHAUST SYSTEMS INSTALLATION 6 10 ...
Page 160: ...1 Starter 7 2 2 Alternator 7 3 3 Stop Solenoid 7 4 4 Glow Plug 7 5 ELECTRICAL SYSTEM REMOVAL ...
Page 165: ...ELECTRICAL SYSTEM REMOVAL 7 6 ...
Page 189: ...ELECTRICAL SYSTEM INSTALLATION 7 30 ...
Page 207: ...MISCELLANEOUS 9 4 ...