| Model. | 4JH2(B)E |
| Bore x Stroke. | 82 X 86mm |
| Displacement. | 1,817 cc. |
| Configuration. | 4 Cylinder, vertical, 4cycle water-cooled diesel engine. Direct injection. |
| Sales date app.. | 1990 - 1998 |
| Dimensions LxWxH mm. | 869 X 561 X 643mm |
| Dry weight. | 226Kg (228Kg) |
| Output: max. / continuous. | 50Hp(36,8Kw)/3600Rpm / 46Hp(33,8Kw)/3400Rpm |
| Cooling System. | Constant high temperature fresh water cooling |
| Starting System. | Starter: 12V - 1,8Kw Generator: 12V - 55A (LR155-20) |
| Lubrication system. | Forced lubrication by trochoid pump |
| Mounting flange No. | SAE 4 |
| Clutch. | Constant mesh, multiple friction disc (KBW20) |
| Rotation, crankshaft / propel. | Counterclockwise / Clockwise viewed from stern |
| Fire Order. | 1 - 3 - 4 – 2 - 1 |
| Max. Torque. | 11,2Kgm/3200Rpm |
| Fuel Consumption. | Max rpm. 185g/Hp-Hr |
| Notes: | (B)= Gearbox KM4A downangel 7° Cone type. Birotation |
| Service Data: | |
| Engine oil. | 7,0L CD - 15W/40 |
| Gear oil. | 1,2L ATF "A" (KBW20) / 1,3L CD – 15W/40 (KM4A) |
| Valve clearance (Cold). | Intake: 0,2mm Exhaust: 0,2mm |
| Fuel Injection Timing. | 14º B.T.D.C. |
| Fuel Injection Pressure. | 200+- 5Kg/cm2 |
| Exhaust gas Temp. | 560° C at max. output |
| Lub. Oil press. | 3,5 - 4,5Kgf/cm2 at max. output |
| Top Clearance / Compression. | 0,71 - 0,89mm / 22 - 27Kg/Cm2 |
| Tightning Torque:* | |
| Cylinder Head. | 8,5Kgm |
| Bearing Con-Rod. | 5,5Kgm |
| Bearing Main. | 11,5Kgm |
| Flywheel Bolt. | 8,0Kgm |
| Damper disk bolts. | 2,6Kgm |
| Crankshaft V-pulley bolt. | 12,0Kgm |