wsm B2420 Workshop Manual page 71

B2420, WSM
3. FUEL SYSTEM
Fuel from the fuel tank (1) passes thought the fuel filter (7), and then enters the injection pump (5) after impurities
such as dirt, water, etc. are removed.
The fuel pressurized by the injection pump (5) to the opening pressure (13.73 to 14.71 MPa, 140 to 150 kgf/cm
1991 to 2062 psi), of the injection nozzle (3) is injected into the combustion chamber.
A part of the fuel fed to the injection nozzle (3) lubricates the moving parts of the plunger inside the nozzle, then
returns to the fuel tank (1) through the fuel overflow pipe (2) from the upper part of the nozzle holder.
1-M3
ENGINE
(1) Fuel Tank
(2) Fuel Overflow Pipe
(3) Injection Nozzle
(4) Fuel Injection Pipe
(5) Injection Pump
(6) Fuel Feed Pump
(7) Fuel Filter
(a) Fuel Flow
9Y1210436ENM0003US0
KiSC issued 06, 2012 A
2
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