Yanmar 6CXM-GTE, Руководство по обслуживанию

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3.11 Fuel Oil System
The engine revolutions are transmitted to the camshaft by
the driving gear of the fuel pump via the timer.
The feed pump activated by the camshaft rotations sucks
fuel oil from the fuel tank and feeds it to the fuel filter at the
pressure of about 0.33 MPa (3.4 kgf/cm
2 ).
The filtered fuel oil is sent to the oil sump in the pump
housing and is pressurized by the plunger. The fuel oil then
flows through the injection pipe and nozzle holder and is
injected from the nozzle to each cylinder.
3.11.1 Fuel Injection Pump
The Yanmar YPES-PS fuel injection pump is an integrated
type and the engine revolutions are transmitted to the cam-
shaft of the pump through the driving gear and advance timer.
(1) Specifications
Unit
6CXM-GTE/
6CXM-GTE2
Plunger dia. mm 13
Plunger pre-stroke mm 3.5
Delivery valve suck-back q'ty mm
3
/st 70
Delivery valve dia. mm 7
Cam lift mm 12
Thrust clearance mm 0.01 - 0.05
Plunger spring free length mm 54
Plunger spring constant N(kgf)/mm 36.7 (3.74)
Delivery valve spring free length mm 21
Delivery valve spring constant N(kgf)/mm 9.26 (0.944)
Delivery valve
Damping valve
Plunger barrel
Plunger
Control rack
Tappet
Fuel cam
(YPES-PS type)
Automatic timer
Fuel feed pump
Boost compensator
Fuel injection pump
Governor