Yanmar 4JH4E - Fuel Injection Pump Structure

6. Fuel Injection equipment
228
6.3.2 Fuel injection pump structure
(1) Specification
The fuel injection pump is VE type (Bosh
made).
[NOTICE]
The disassembly and adjustment of a fuel
injection pump need expertise and facilities.
Make a request to Bosh service shop for
them.
Model notation
Fuel injection pump VE type
Fuel feed pump Vane type (built-in)
Timer Hydraulic (built-in)
Model VE4/12F
Direction of rotation Clockwise (viewed from the drive side)
Plunger diameter ø12 mm
Governor type All speed
Fuel feed type Vane
Timer advancing angle 4JH4-TE 4JH4-HTE
1.5°/1100 - 1600 min
-1
(pump speed) 2.6°/1200 - 1600 min
-1
(pump speed)
Lubricating method Fuel oil lubricating
Fuel cut method 1) Magnetic valve (normal open)
2) With a manual stop lever
Additional device Boost compensator
NP - VE 4 / 12 F 1600 R NP2586
Bosh ID
VE type fuel injection pump
Number of cylinders
Governor type
E: Electronic type
F: Mechanical type
Maximum speed of governor control (min
-1
)
Direction of rotation of pump (viewed from the drive side)
R: Clockwise
L: Counter clockwise
Identification No.
010345-00E