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Nanni N4.40 - Servicing

Nanni N4.40
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CONTENTS
1. TROUBLESHOOTING.................................................................................................................1-S1
[1] ENGINE BODY......................................................................................................................1-S1
[2] ELECTRONIC GOVERNOR .................................................................................................1-S8
2. SERVICING SPECIFICATIONS ................................................................................................1-S10
3. TIGHTENING TORQUES..........................................................................................................1-S20
[1] TIGHTENING TORQUES OF SCREWS, BOLTS AND NUTS FOR GENERAL USE.........1-S20
[2] TIGHTENING TORQUES OF THE SCREWS, BOLTS AND NUTS FOR SPECIAL USE ..1-S21
4. CHECKING, DISASSEMBLING AND SERVICING ...................................................................1-S22
[1] CHECKING AND ADJUSTING............................................................................................1-S22
(1) Engine Body ..................................................................................................................1-S22
(2) Lubricating System ........................................................................................................1-S25
(3) Cooling System .............................................................................................................1-S25
(4) Fuel System...................................................................................................................1-S28
(5) Electrical System ...........................................................................................................1-S36
(6) Turbocharger .................................................................................................................1-S40
(7) Electronic Governor.......................................................................................................1-S41
[2] DISASSEMBLING AND ASSEMBLING ..............................................................................1-S46
(1) Draining Engine Oil and Coolant ...................................................................................1-S46
(2) External Components ....................................................................................................1-S47
(3) Cylinder Head and Valves .............................................................................................1-S48
(4) Gear Case and Timing Gears........................................................................................1-S54
(5) Piston and Connecting Rod...........................................................................................1-S64
(6) Flywheel and Crankshaft ...............................................................................................1-S69
(7) Starter............................................................................................................................1-S72
(8) Alternator .......................................................................................................................1-S73
[3] SERVICING .........................................................................................................................1-S74
(1) Cylinder Head and Valves .............................................................................................1-S74
(2) Timing Gears .................................................................................................................1-S82
(3) Piston and Connecting Rod...........................................................................................1-S88
(4) Crankshaft .....................................................................................................................1-S92
(5) Cylinder .........................................................................................................................1-S97
(6) Oil Pump........................................................................................................................1-S99
(7) Starter............................................................................................................................1-S99
(8) Alternator .....................................................................................................................1-S102
SERVICING
KiSC issued 06, 2009 A

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