Operational and Maintenance Manual G11 Series
4. FUEL SYSTEM
4.1 G11 Series engine fuel system
Fig. 41 3G11 Series engine fuel system
Engine must be operated with good quality diesel.
Preferred quality specifications are (IS: 1460 2005)
– cetane no 51, Sulfur 0.015% max, density
0.825gm/cc
G11 series engine uses inline mono-block high
pressure fuel injection pump, with multi-hole
mechanical injectors. It is provided with a feed
pump and double element fuel filter.
The system is calibrated to deliver performance
and meet emission norms.
Since the high pressure injection system is used
on this engine, gravity flow of fuel from fuel tank to
fuel injection pump (FIP) is recommended. The
fuel tank height can be up to three meters (to be
recommended by installation / service engineer), it
can also be below FIP provided suction head is up
to one meter.
Fig. 42 Fuel System
Fig.43 Fuel System
FIP and injectors are supplied by BOSCH and
warranty is covered. Servicing these is a highly
skilled work. This has to be done by authorized
service agency or shop.
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