- 4 -
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Workshop Manual__3 - 4 LD_cod. ED0053025560_
4° ed
_ rev.
03
This handbook provides the main information concerning the repair of the following LOMBARDINI Diesel engines
3LD 450,
3LD 510, 3LD 451/S, 3LD 510/S, 4LD 640, 4LD 705, 4LD 820,
which are air-cooled, provided with direct injection and revised
on the 15-06-2014.
INDEX
1
GENERAL REMARKS AND SAFETY INFORMATION .......................................................................................Pag. 6 - 7
California Proposition 65 ................................................................................................................................................... 7
General safety during operating phases ........................................................................................................................... 8
Regulations for lifting the engine ....................................................................................................................................... 7
Safety and enviromental impact ........................................................................................................................................ 8
Safety information .......................................................................................................................................................... 6-7
2
TECHNICAL INFORMATION
................................................................................................................................... 10 - 15
Manufacturer and motor identification data ..................................................................................................................... 10
Capacities in litres - Air filter oil bowl ............................................................................................................................... 14
Capacities in litres - Standard fuel tanks ......................................................................................................................... 14
Capacities in litres - Standard oil sump ........................................................................................................................... 14
Lubricant - ACEA-Regulations sequences ...................................................................................................................... 15
Lubricant - API-MIL sequences ....................................................................................................................................... 15
Lubricant - International specifications ............................................................................................................................ 15
Lubricant - SAE classification .......................................................................................................................................... 15
Performance diagrams .................................................................................................................................................... 12
Possible causes and trouble shooting ............................................................................................................................. 13
Routine engine maintenance .......................................................................................................................................... 14
Table of likely anomalies and their symptoms ................................................................................................................. 13
Technical data ..................................................................................................................................................................11
3
DISASSEMBLY / REASSEMBLY .............................................................................................................................. 16 - 29
Camshaft .......................................................................................................................................................................... 27
Camshaft axial clearance ................................................................................................................................................. 25
Camshaft intake and exhaust cam height. ....................................................................................................................... 28
Camshaft intake and exhaust cam timing ........................................................................................................................ 27
Camshaft pin and housing dimensions (mm) ................................................................................................................... 28
Clearance volume ............................................................................................................................................................ 23
Connecting rod equipped with bearings and piston pin ................................................................................................. 24
Connecting rod, big end bearings .................................................................................................................................... 24
Cylinder and piston .......................................................................................................................................................... 22
Decompression (by request) ............................................................................................................................................ 18
Distance among segment ends (mm) ............................................................................................................................. 22
Distribution timing without following the references ........................................................................................................ 28
Distribution timing ............................................................................................................................................................. 28
Drive shaft ........................................................................................................................................................................ 26
Drive shaft axial clearance ............................................................................................................................................... 24
Drive shaft connecting radius ........................................................................................................................................... 26
Drive shaft internal diam. crankshaft bearing / connecting rod head
and clearances regarding their respective pins (mm) ..................................................................................................... 27
Drive shaft lubrication ducts ............................................................................................................................................. 26
Drive shaft main journal and crank diametres (mm) ........................................................................................................ 26
Flywheel ........................................................................................................................................................................... 17
Head ................................................................................................................................................................................. 19
Injector, projection ............................................................................................................................................................ 19
Main bearing on flywheel side .......................................................................................................................................... 24
Oil-bath air filter (standard) .............................................................................................................................................. 16
Piston reassembly ............................................................................................................................................................ 23
Piston ring - Clearances among slots (mm) ..................................................................................................................... 22
Piston ring assembly order ............................................................................................................................................... 23
Recommendations for disassembling .............................................................................................................................. 16
Rocker arm pin and hole ................................................................................................................................................. 19
Rocker arm pin, extraction .............................................................................................................................................. 18
Side distributor port .......................................................................................................................................................... 25
Silencer (standard) ........................................................................................................................................................... 16
Speed governor ................................................................................................................................................................ 29
Starting pulley .................................................................................................................................................................. 17
Timing of the speed governor ........................................................................................................................................... 29
Содержание 3LD 450
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