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Yanmar 4JH4-TE Service Manual

Yanmar 4JH4-TE
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6. Fuel Injection equipment
233
6.3.3 Fuel injection pump service data
The expertise and facilities are necessary for the disassembly and adjustment of a fuel injection pump.
Make a request to Bosh service shop for them.
4JH4-TE and 4JH4-HTE
Adjustment
conditions
Nozzle type Bosh 105780-0060 (NP-DN0S1510)
Nozzle holder 105780-2150
Nozzle opening pressure 13.0 MPa
Fuel injection pipe
(outside diameter x
inside diameter-length)
ø6 x 2-450 mm
Fuel oil feed pressure 20 kPa
Engine model 4JH4-TE
Adjustment value Pump speed
(min
-1
)
Boost
pressure
(kPa)
Injection
quantity
(mm
3
/st)
Ununiformity
(mm
3
/st)
Lube oil
temperature
(°C)
Remarks
Injection quantity and governor 600 0 (83.5) - 50 ± 2
800 40.0 ± 1.3 112 ± 2-50 ± 2 Standard
900 66.7 ± 1.3 127.7 ± 2 10.5 50 ± 2 Standard
1600 66.7 ± 1.3 (118.2 ± 6) - 50 ± 2
1800 66.7 ± 1.3 58.5 ± 5- 50 ± 2 Standard
400 0 8.5 ± 2.5 3.0 48 ± 2 Standard
100 0 (134.2) - 48 ± 2
Timer and pump room pressure Pump speed
(min
-1
)
Boost
pressure
(kPa)
Timer piston
stroke
(mm)
Pump room
pressure
(kPa)
Remarks
1000 66.7 ± 1.3 0.5 or less -
1500 66.7 ± 1.3 0.9 ± 0.4 520 ± 39 Standard
1600 66.7 ± 1.3 (1.0 ± 0.6) -
Cold advancer characteristics Coolant
temperature
(°C)
Timer piston
stroke
(mm)
Remarks
20 1.04 ± 0.6 Standard
-10 2.81 ± 0.8
Engine model 4JH4-HTE
Adjustment value Pump speed
(min
-1
)
Boost
pressure
(kPa)
Injection
quantity
(mm
3
/st)
Ununiformity
(mm
3
/st)
Lube oil
temperature
(°C)
Remarks
Injection quantity and governor 500 0 (43.1) - 48 ± 2
750 40.0 ± 1.3 91.2 ± 2- 50 ± 2 Standard
1100 80.0 ± 1.3 128.2 ± 2 10.5 50 ± 2 Standard
1600 80.0 ± 1.3 (124.0 ± 6) - 50 ± 2
1750 80.0 ± 1.3 60.3 ± 5- 50 ± 2 Standard
380 0 8.0± 2.5 3.0 48 ± 2 Standard
100 0 (110) - 48 ± 2
Timer and pump room pressure Pump speed
(min
-1
)
Boost
pressure
(kPa)
Timer piston
stroke
(mm)
Pump room
pressure
(kPa)
Remarks
1200 80.0 ± 1.3 0.5 or less -
1500 80.0 ± 1.3 1.2 ± 0.4 569 ± 39 Standard
1600 80.0 ± 1.3 (2.1 ± 0.6) -
Cold advancer characteristics Coolant
temperature
(°C)
Timer piston
stroke
(mm)
Remarks
20 1.04 ± 0.6 Standard
-10 2.81 ± 0.8

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Yanmar 4JH4-TE Specifications

General IconGeneral
Number of Cylinders4
AspirationTurbocharged
Fuel SystemDirect injection
Alternator12V - 80A
Cooling SystemFresh water cooling with heat exchanger
Engine Type4-stroke, water-cooled diesel engine
Rated Output55 kW (75 mhp) at 3200 rpm
Starting SystemElectric starting
Lubrication SystemForced lubrication with gear pump

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