Fuel System
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Z001138-1_2013-02-01
03.00 Fuel System
03.00.01 General
Schematic
03.00.02 Functional
description
When the ignition switch is turned, an electric fuel pump
3
is put into operation and
the fuel flows from the fuel tank through the pre-filter
2
. From the fuel pump, fuel is
pumped to the engine fuel gallery at the rear inlet
5
and the unit injectors
6
. Excess
fuel, not used in the engine for combustion, leaves the fuel gallery by pressure check
valve at the block outlet
7
. The fuel flows from this point into the fuel cooler
8
and
from there back to the fuel tank
1
.
The fuel gets pressurized by the fuel pump
3
.The feed pressure to the unit injector is
controlled via the pressure check valve
9
at the block outlet. The operating pre -
pressure in the supply gallery may be in a range of app. 3,5 – 5,5 bar.
Refer to engine table for specific value for your engine model.
For fuel requirements, refer to chapter GENERAL
Summary of Contents for Marine Engine 2012 Series
Page 35: ...General 35 65 Z001138 1_2013 02 01 Trouble Indication ...
Page 36: ...General Preliminary Service Manual MARINE 2012 Z001138 1_2013 02 01 36 65 ...
Page 51: ...General 51 65 Z001138 1_2013 02 01 G Notes on safety ...
Page 69: ...Engine Z001138 1_2013 02 01 4 87 Kapitel MOUNT BRACKET COVER T BELT GASKET SET ...
Page 154: ...Fuel System Z001138 1_2013 02 01 2 51 ...
Page 159: ...Fuel System 7 51 Z001138 1_2013 02 01 03 00 03 Unit injector ...
Page 190: ...Fuel System Z001138 1_2013 02 01 38 51 Schema Injection Timing Device ITD ...
Page 211: ...Cooling System 5 21 Z001138 1_2013 02 01 ...
Page 231: ...Electrical System Z001138 1_2013 02 01 4 47 ...
Page 235: ...Electrical System Z001138 1_2013 02 01 8 47 ...
Page 236: ...Electrical System 9 47 Z001138 1_2013 02 01 ...
Page 238: ...Electrical System 11 47 Z001138 1_2013 02 01 ...