4JH4AE Specifications (Continued)
Engine Model 4JH4AE
Marine Gear Model SD50 Bobtail
Use Pleasure use
Type Vertical water cooled 4-cycle diesel engine
Combustion system Direct injection
Air charging Natural aspiration
Number of cylinders 4
Bore x stroke 88 x 90 mm (3.46 x 3.54 in.)
Displacement 2.190 L
133.6 cu in.
Continuous power Output at crankshaft / Engine
speed
36.0 kW (48.9 hp)/2907 rpm
*
Fuel stop power Output at crankshaft / Engine
speed
39.6 kW (53.8hp)/3000 rpm
***
Output at propeller / Engine
speed
-
Installation Flexible mounting
Fuel injection timing FIR 5 ± 1° BTDC (at Fuel Stop Power)
FIT 18 ± 1° BTDC (at Plunger Lift 2.5)
Fuel injection opening pressure 19.6 - 20.6 MPa
Main power take off At flywheel end
Direction of rotation Crankshaft Counterclockwise viewed from stern
Propeller shaft (Ahead) Clockwise viewed from stern
Cooling system Fresh water cooling with heat exchanger
Lubrication system Closed forced lubrication system
Cooling water capacity (fresh) Engine 6.0 L (6.3 qt)
Coolant recovery tank: 0.8 L (0.8 qt)
Lubricating oil capacity
(engine)
Rake angle at rake angle 0˚
Total
***
5.5 ± 0.3 L (5.8 ± 0.3 qt)
Oil pan only 5.0 ± 0.3 L (5.3 ± 0.3 qt)
Effective
****
1.4 L (1.5 qt)
Starting system Type Electric
Starting motor DC 12 V - 1.4 kW
AC generator 12 V - 80 A
Engine dimension Overall length 795 mm (31.3 in.)
Overall width 560 mm (22.0 in.)
Overall height 625 mm (24.6 in.)
Flywheel major dimension D300 x 66 mm (11.8 x 2.6 in.)
Engine dry mass (include marine gear) 241 kg engine: 201 kg
(531 lb)
(engine: 443 lb)
201 kg (443 lb)
SPECIFICATIONS
92 JH4 Series Operation Manual
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