WORKSHOP MANUAL - lombardini service
WORKSHOP MANUAL - lombardini service WORKSHOP MANUAL - lombardini service
4 Disassembly / Reassembly VALVES To remove the valves it is necessary to remove the collets; place a spacer under the valve head, press strongly on the spring cap as shown in the picture. Components: 1 Valve stem 2 Valve stem seal ring 3 Spring seat 4 Spring 5 Spring cap 6 Collets 62 63 Valve stem sealing rings - Reassembly To prevent deformation of the sealing ring 1 as it is inserted onto the valve guide, insert it onto tool "7107-1460-047" 2 (after lubricating the sealing ring) and proceed as shown int the picture ensuring that gasket 1 is completely fitted. 64 65 Valve springs Measure free height with a gauge. Free height A = 46 mm. Note: If the free height A is less than 43,5 mm replace the spring. 66 - 38 - FOCS Workshop Manual_cod. 1.5302.858_1° ed_ rev. 00
Disassembly / Reassembly 4 Valve, specifications Exhaust valve A Shaft and head are made of 2 different materials. 2 Welded joint 3 Chromium-plated joint 4 Portion made of: ........ X 45 Cr Si 8 UNI 3992 5 Portion made of: ........ X 70 Cr Mn NI N 216 UNI 3992 D 30,20 α = 45° 30' ÷ 45° 45' 67 Intake valve B Material: X 45 Cr Si 8 UNI 3992 1 = Chromium-plated joint C 34,40 α 1 = 60° 30' ÷ 60° 45' Valve guides and valve guide housings Both intake and exhasut valve guides are identical dimensionally and are made from phosphoric gray iron with a pearlitic matrix: Dimensions (mm): A B C D E 36,4÷36,6 11,045÷11,05 4 11,000÷11,01 8 5,80÷6,20 9,75÷9,85 68 Note: Valve guides are supplied in finished form, further machining is prohibited. Valve guides with outside diameter B increased by 0.5 mm. are available. Valve guide insertion Fit the guides with a punch taking account of value A in relation to the cylinder head surface. Dimensions (mm): A B C 39,5 ÷ 40,0 7,005 ÷ 7,020 6,960 ÷ 6,990 Clearance (mm): 69 (B-C) = 0,015÷0,050 (B- C) limite usura = 0,10 FOCS Workshop Manual_cod. 1.5302.858_1° ed_ rev. 00 - 39 -
- Page 1: WORKSHOP MANUAL 1003 FOCS Engine Se
- Page 4 and 5: - REGISTRATION OF MODIFICATIONS TO
- Page 6 and 7: - Chapter index Cylinder head tight
- Page 8 and 9: - Chapter index Pump/injector unit
- Page 10 and 11: 1 General remarks and safety inform
- Page 12 and 13: 2 TECHNICAL INFORMATION TROUBLE SHO
- Page 14 and 15: 2 Technical information MANUFACTURE
- Page 16 and 17: 2 Technical information PERFORMANCE
- Page 18 and 19: 3 MAINTENANCE - RECOMMENDED OIL TYP
- Page 20 and 21: 3 Maintenance - Recommended oil typ
- Page 22 and 23: 4 DISASSEMBLY / REASSEMBLY RECOMMEN
- Page 24 and 25: 4 Disassembly / Reassembly E.G.R. C
- Page 26 and 27: 4 Disassembly / Reassembly Flywheel
- Page 28 and 29: 4 Disassembly / Reassembly Cranksha
- Page 30 and 31: 4 Disassembly / Reassembly Valve ti
- Page 32 and 33: 4 Disassembly / Reassembly OIL PUMP
- Page 34 and 35: 4 Disassembly / Reassembly Injectio
- Page 36 and 37: 4 Disassembly / Reassembly 54 55 CA
- Page 40 and 41: 4 Disassembly / Reassembly Valve se
- Page 42 and 43: 4 Disassembly / Reassembly PISTON R
- Page 44 and 45: 4 Disassembly / Reassembly 91 92 Pi
- Page 46 and 47: 4 Disassembly / Reassembly CONNECTI
- Page 48 and 49: 4 Disassembly / Reassembly Central
- Page 50 and 51: 4 Disassembly / Reassembly Cranksha
- Page 52 and 53: 4 Disassembly / Reassembly . ......
- Page 54 and 55: 5 LUBRIFICATION CIRCUIT Danger - At
- Page 56 and 57: 5 Lubrification circuit Oil pressur
- Page 58 and 59: 6 COOLANT CIRCUIT Danger - Attentio
- Page 60 and 61: 7 FUEL SYSTEM Fuel feeding / inject
- Page 62 and 63: 7 Fuel system Plunger barrel ring n
- Page 64 and 65: 7 Fuel system Setting of injector R
- Page 66 and 67: 7 Fuel system Static injection adva
- Page 68 and 69: 8 ELECTRIC SYSTEM Alternator, 14V 3
- Page 70 and 71: 8 Electric System STARTER MOTOR - B
- Page 72 and 73: 8 Electric System Oil pressure swit
- Page 74 and 75: 9 SETTINGS SPEED SETTINGS Setting t
- Page 76 and 77: 9 Settings Pump/injector unit deliv
- Page 78 and 79: 10 STORAGE ENGINE STORAGE - When th
- Page 80 and 81: 11 TORQUE SPECIFICATIONS AND USE OF
- Page 82 and 83: 12 SPECIAL TOOLS SPECIAL TOOLS DESC
- Page 84: - Notes . .........................
Disassembly / Reassembly<br />
4<br />
Valve, specifications<br />
Exhaust valve A<br />
Shaft and head are made of 2 different materials.<br />
2 Welded joint<br />
3 Chromium-plated joint<br />
4 Portion made of: ........ X 45 Cr Si 8 UNI 3992<br />
5 Portion made of: ........ X 70 Cr Mn NI N 216 UNI 3992<br />
D 30,20<br />
α = 45° 30' ÷ 45° 45'<br />
67<br />
Intake valve B<br />
Material: X 45 Cr Si 8 UNI 3992<br />
1 = Chromium-plated joint<br />
C 34,40<br />
α 1<br />
= 60° 30' ÷ 60° 45'<br />
Valve guides and valve guide housings<br />
Both intake and exhasut valve guides are identical dimensionally and<br />
are made from phosphoric gray iron with a pearlitic matrix:<br />
Dimensions (mm):<br />
A B C D E<br />
36,4÷36,6<br />
11,045÷11,05<br />
4 11,000÷11,01<br />
8 5,80÷6,20<br />
9,75÷9,85<br />
68<br />
Note: Valve guides are supplied in finished form, further machining<br />
is prohibited.<br />
Valve guides with outside diameter B increased by 0.5 mm.<br />
are available.<br />
Valve guide insertion<br />
Fit the guides with a punch taking account of value A in relation to<br />
the cylinder head surface.<br />
Dimensions (mm):<br />
A B C<br />
39,5<br />
÷ 40,0 7,005<br />
÷ 7,020<br />
6,960 ÷ 6,990<br />
Clearance (mm):<br />
69<br />
(B-C) = 0,015÷0,050 (B- C) limite usura = 0,10<br />
FOCS Workshop Manual_cod. 1.5302.858_1° ed_ rev. 00<br />
- 39 -
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