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11 LD Workshop Manual_cod. 1.5302.296_5° ed_ rev. 04
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Fuel feeding pump
The fuel feeding pump is of the diaphgragm type operated by a
camshaft eccentric through a drive rod.
It features an external lever for manual operation.
Components:
1 Drive rod : shelf 1,470 ÷ 2,070 mm
2 Gasket
3 Camshaft eccentric
Characteristics: when the control eccentric rotates at 1500 r.p.m.
minimum delivery is 64 l/h while self-regulation
pressure is 4 ÷ 5 m water column.
Fuel filter
Components: 1 Bleeder
2 Cap
3 Seal element
4 Union
5 Cartridge
Cartridge characteristics:
Filtering paper .................... PF 904
Filtering area ...................... 5000 cm2
Degree of filtrafion ............. 2 ÷ 3 µm
Max.,working pressure:...... 4 bar
See page 17 for periodical maintenance details.
Injection pump
The Bosch injection system consists of three pumps each feeding one
cylinder.
The pumps mounted on the crankcase, corresponding to their proper
cylinder, are directly operated by the camshaft.
Fuel feeding/injection circuit
Components:
1 Tank
2 Filter
3 Fuel feeding tube
4 Fuel feeding pump
5 Injection pump
6 Injection line
7 Injector
8 Injector leak off line and self bleeding system
9 Bowl
FUEL SYSTEM
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