The John Deere G GM is a 2WD row-crop tractor from the Two-Cylinder Letter series. The second generation, known as model GM (“G Modernized”), was manufactured by John Deere in Waterloo, Iowa, USA from 1942 to 1948. The John Deere G is equipped with a 6.8 L (412.5 cu·in) two-cylinder all-fuel engine and a gear type transmission with 6 forward and 1 reverse gears.
The John Deere model G row-crop tractor used the John Deere engine. It is a 6.8 L, 6,759 cm2, (412.5 cu·in) two-cylinder natural aspirated all-fuel engine with 156.0 mm (6.14 in) of the cylinder bore and 178.0 mm (7.01 in) of the piston stroke. The compression ratio rating is 4.2:1. This engine produced 20.9 PS (15.4 kW; 20.7 HP) of output power.
The John Deere G is equipped with manual steering, an open operator station, and 64.3 liters (17 US gal.; 14.1 Imp. gal) fuel tank.
John Deere G Specifications
| General Specifications | |
| Model | John Deere G |
| Length | 3,490 mm (137.4 in) |
| Width | 1,670 mm (65.7 in) |
| Height | 2,150 mm (84.6 in) |
| Wheel base | – |
| Weight (operating) | 2,400 kg (5,291 lbs) |
| Fuel tank capacity | 64.3 liters (17 US gal.; 14.1 Imp. gal) |
| Battery | Two 6V |
| Cabin type | Open operator station |
| Engine | |
| Engine model | John Deere |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 2 |
| Fuel type | All-fuel |
| Displacement | 6.8 L, 6,759 cm2, (412.5 cu·in) |
| Bore and stroke | 156.0 mm X 178.0 mm (6.14 in X 7.01 in) |
| Compression ratio | 4.2:1 |
| Horsepower (drawbar) | 20.9 PS (15.4 kW; 20.7 HP) |
| Starter | Hand-crank or electric |
| Oil capacity: | 10.4 L (11 US. qt, 9.2 Imp. qt.) |
| Coolant capacity: | 41.6 L (44 US. qt, 36.6 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×2 2WD |
| Steering type | Manual |
| Brakes | – |
| Transmission model | John Deere |
| Transmission type | Gear type with dry disc clutch |
| Gears | 6 forward and 1 reverse |
| Speed | Forward: 20.1 kmh (12.5 mph) Reverse: 5.6 kmh (3.5 mph) |
| Tires | |
| Front tires | Ag: 24×5, 6.00-16 |
| Rear tires | Ag: 51.5×7, 12×38 |
| PTO (Power take-off shaft) | |
| Rear PTO type | Transmission |
| Rear PTO speed | 540 rpm |
| Hydraulic system | |
| Hydraulic type | Open center |
| Hydraulic capacity | 4.7 L (1.2 US. gal, 1 Imp. gal.) |
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