YANMAR 2GM20
| Model. | 2GM20(F)(C) |
| Bore x Stroke. | 75 X 72mm |
| Displacement. | 0,636 cc. |
| Configuration. | 2 Cylinder, vertical, 4cycle water-cooled diesel engine. Swirl pre-combustion chamber. |
| Sales date app.. | 1984 - d.d |
| Dimensions LxWxH mm. | 638 X 455 X 495mm (643 X 482 X 545mm) |
| Dry weight. | 106Kg (114Kg) |
| Output: max. / continuous. | 18Hp(13,4Kw)/3600Rpm / 16Hp(11,9Kw)/3400Rpm |
| Cooling System. | Direct sea water cooling (Fresh water cooling) |
| Starting System. | Starter: 12V - 1,0Kw Generator: 12V - 55A (LR155-20) |
| Lubrication system. | Forced lubrication by trochoid pump |
| Mounting flange No. | SAE 6 |
| Clutch. | Mechanical cone (KM2C) Clutch dog (SD20) |
| Rotation, crankshaft / propel. | Counterclockwise / Clockwise viewed from stern |
| Fire Order. | 1 - 2 - 1 |
| Max. Torque. | 3,75Kgm/2800Rpm |
| Fuel Consumption. | Max. 215g/Hp-Hr |
| Notes: | Model
F= Fresk water cooling by heat exchanger. Model C= Saildrive(SD20) Propel rotation: Counter clockwise. |
| Service Data: | |
| Engine oil. | 2,0L CD - 15W/40 |
| Gear oil. | 0,25L CD - 15W/40 (KM2C) / 2,2L EP80/90 (SD20) |
| Valve clearance (Cold). | Intake: 0,2mm Exhaust: 0,2mm |
| Fuel Injection Timing. | 15º B.T.D.C. |
| Fuel Injection Pressure. | 170+- 5Kg/cm2 |
| Top Clearance / Compression. | 0,68 - 0,88mm / 28 - 33Kg/Cm2 |
| Tightning Torque:* | |
| Cylinder Head. | 12,0Kgm |
| Bearing Con-Rod. | 2,5Kgm |
| Bearing Main. | 3,5Kgm |
| Bearing Main, set bolt. | 5,0Kgm |
| Flywheel Bolt. | 7,0Kgm |