The International Harvester 766 is a 2WD row-crop tractor from the 66 series. This tractor was manufactured by International Harvester in Rock Island, Illinois, USA from 1971 to 1976.
The International Harvester 766 is equipped with one of two engines: a 6.4 L (391.0 cu·in) six-cylinder gasoline engine or a 5.9 L (359.9 cu·in) six-cylinder gasoline engine and one of two transmissions: a sliding gear transmission with 8 forward and 4 reverse gears and dry disc clutch or a partial power shift transmission with 16 forward and 8 reverse gears and dry disc clutch.
The tractor could be equipped with the following engines:
- International Harvester C291. It is a 6.4 L, 6,407 cm2, (391.0 cu·in) six-cylinder natural aspirated gasoline engine with 95.0 mm (3.74 in) of the cylinder bore and 112.0 mm (4.41 in) of the piston stroke.
- International Harvester D360. It is a 5.9 L, 5,898 cm2, (359.9 cu·in) six-cylinder natural aspirated gasoline engine. The cylinder bore is 98.0 mm (3.86 in) and the piston stroke is 129.0 mm (5.08 in). The compression ratio rating is 17.0:1.
The International Harvester 766 is equipped with hydrostatic power steering, hydraulic dry disc brakes, Open operator station or Cab (optional) and 140.0 liters (37 US gal, 30.8 Imp. gal) fuel tank.
International Harvester 766 Specifications
| General Specifications | |
| Model | International Harvester 766 |
| Length | – |
| Width | – |
| Height | – |
| Wheel base | 2,600 mm (102.4 in) |
| Weight (operating) | 4,670 kg (10,296 lbs) |
| Fuel tank capacity | 140.0 liters (37 US gal, 30.8 Imp. gal) |
| Battery | – |
| Cabin type | Open operator station or Cab (optional) |
| Engine | |
| Engine model | International Harvester C291 |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 6 |
| Fuel type | Gasoline |
| Displacement | 6.4 L, 6,407 cm2, (391.0 cu·in) |
| Bore and stroke | 95.0 mm X 112.0 mm (3.74 in X 4.41 in) |
| Horsepower | – |
| Starter | Electric |
| Engine | |
| Engine model | International Harvester D360 |
| Engine type | Four-stroke, air-cooled, inline |
| Cylinders | 6 |
| Fuel type | Gasoline |
| Displacement | 5.9 L, 5,898 cm2, (359.9 cu·in) |
| Bore and stroke | 98.0 mm X 129.0 mm (3.86 in X 5.08 in) |
| Compression ratio | 17.0:1 |
| Horsepower | – |
| Starter | Electric |
| Transmission and chassis | |
| Chassis | 4×2 2WD |
| Steering type | Hydrostatic power |
| Brakes | Hydraulic dry disc |
| Transmission model | – |
| Transmission type | Sliding gear with dry disc clutch |
| Gears | 8 forward and 4 reverse |
| Transmission model | Torque Amplifier |
| Transmission type | Partial power shift with dry disc clutch |
| Gears | 16 forward and 8 reverse |
| Tires | |
| Front tires | Ag: 9.5L-15 |
| Rear tires | Ag: 18.4-34 |
| Three-Point Hitch | |
| Category | II |
| Control type | – |
| Lift capacity (at ends) | – |
| PTO (Power take-off shaft) | |
| Rear PTO type | Independent |
| Rear PTO speed | 540, 1000 rpm |
| Hydraulic system | |
| Hydraulic type | Open center |
| Pump flow | 12.0 gpm (45.4 lpm) |
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