| Manufacturer | Ford |
| Price | - |
| Model | 771 |
| Equipment Type | Row-Crop Tractors |
| Factory | Highland Park, Michigan, USA |
FORD 771 POWER
| Engine | 48.4hp / 36.1kW |
| Belt (claimed) | 32hp / 23.9kW |
| Plows | 2 (14-inch) |
ENGINES OVERVIEW
The Ford 771 tractor offers diverse engine options, including 2.2L gasoline, 2.2L LP gas, and 2.4L diesel variants, allowing for flexibility depending on fuel availability and cost-efficiency in agricultural operations. The gasoline engines provide quicker starts and higher RPMs suitable for tasks requiring rapid power delivery, while diesel engines are favored for their torque characteristics and fuel efficiency over long working hours. Consideration of the operational environment and fuel preferences is critical when selecting the right engine type for optimal performance and economic viability.
| Description | Ford 2.2L 4-cyl gasoline Ford 2.2L 4-cyl LP gas Ford 2.4L 4-cyl diesel |
ENGINE DETAIL 1
The Ford 771 tractor features a robust 4-cylinder EAE Red Tiger engine, boasting 48.4 hp and 126.8 lb-ft of torque at 1600 RPM, making it suitable for medium-duty applications. With a compression ratio of 7.5:1, it provides a balance between power and reliability, although it may exhibit lower fuel efficiency due to its Tier 0 emissions classification. Additionally, the oil bath air cleaner simplifies maintenance but may not provide optimal filtration compared to modern systems, potentially affecting performance in dusty conditions.
| Description | Ford EAE Red Tiger gasoline 4-cylinder 8-valve liquid-cooled vertical inline |
| Displacement | 134ci / 2.2L |
| Bore/Stroke | 3.4375x3.60inches / 87 x 91mm |
| Emissions | Tier 0 |
| Power | 48.4hp / 36.1kW |
| Air cleaner | oil bath |
| Compression | 7.5:1 |
| Rated RPM | 2200 |
| Torque | 126.8lb-ft / 171.9Nm |
| Torque RPM | 1600 |
| Firing order | 1-2-4-3 |
| Starter volts | 6 |
| Coolant capacity | 15qts / 14.2L |
| Sparkplug | 14MM |
| Sparkplug gap | 0.025inches / 0.635mm (min) 0.028inches / 0.711mm (max) |
ENGINE OIL
The Ford 771 tractor has an oil capacity of 5 quarts (4.7 liters), which is relatively small, making it important to monitor oil levels closely to prevent engine wear. With an oil change interval of 100 hours, regular maintenance is essential to ensure optimal engine performance and longevity, particularly in demanding agricultural applications. Deferring oil changes could lead to sludge buildup, negatively impacting the engine's efficiency and potentially causing costly repairs.
| Oil capacity | 5qts / 4.7L |
| Oil change | 100 h |
ENGINE DETAIL 2
The Ford 771 features a 134 cubic inch (2.2L) LP gas engine with a liquid-cooled configuration, optimizing for cleaner combustion and reduced emissions, beneficial in agricultural settings. Rated at 2200 RPM, it allows sufficient power for typical tractor operations, although the 6-volt starter may present challenges in colder climates due to slow cranking speeds. This tractor is well-suited for tasks that require moderate power output while benefiting from lower fuel costs associated with LP gas.
| Description | Ford LP gas 4-cylinder 8-valve liquid-cooled |
| Displacement | 134ci / 2.2L |
| Bore/Stroke | 3.4375x3.60inches / 87 x 91mm |
| Rated RPM | 2200 |
| Firing order | 1-2-4-3 |
| Starter volts | 6 |
ENGINE DETAIL 3
The Ford 771 tractor features a robust 2.4L diesel engine providing adequate torque for agricultural tasks, while its 2200 RPM rated speed ensures a balance between power and efficiency. With a firing order of 1-2-4-3, it promotes smoother operation and reduced vibration, enhancing durability and reducing wear on critical components. However, its 12-volt starter system may require regular maintenance to avoid electrical issues, especially in cold weather, which could impact reliability during peak farming seasons.
| Description | Ford diesel 4-cylinder 8-valve liquid-cooled |
| Displacement | 144ci / 2.4L |
| Bore/Stroke | 3.562x3.60inches / 90 x 91mm |
| Rated RPM | 2200 |
| Firing order | 1-2-4-3 |
| Starter volts | 12 |
FORD 771 ENGINES
The Ford 771 tractor is equipped with a choice of three engines: a 2.2L 4-cylinder gasoline, a 2.2L 4-cylinder LP gas, and a 2.4L 4-cylinder diesel, allowing flexibility in fuel preference and operational costs. The gasoline and LP options provide lower initial costs and easier starting but may have diminished torque compared to the diesel variant, which offers greater power and efficiency for heavy-duty applications. Ideal for small to medium farm operations, the choice of engine affects fuel economy, maintenance schedules, and overall performance based on the specific agricultural tasks at hand.
| Description | Ford 2.2L 4-cyl gasoline Ford 2.2L 4-cyl LP gas Ford 2.4L 4-cyl diesel |
TRANSMISSION
The Ford 771 tractor features a Ford Select-O-Speed transmission, offering a full power shift that allows for seamless gear transitions without clutch engagement. With 10 forward and 2 reverse gears, this design enhances operational flexibility and efficiency for varied terrain and tasks. However, the complexity of the Select-O-Speed system may require specialized maintenance and repair, potentially posing challenges for operators in remote areas.
| Transmission | Ford Select-O-Speed |
| Type | full power shift |
| Gears | 10 forward and 2 reverse |
MECHANICAL
The Ford 771 tractor features a 4x2 2WD chassis, which provides decent maneuverability but may struggle on uneven terrain or in muddy conditions compared to 4WD models. Its power-assisted steering enhances operator comfort, particularly during prolonged use, while the differential mechanical expanding shoe brakes offer reliable stopping power, albeit with potential maintenance needs. The 10-speed full power shift transmission allows for smooth gear transitions, making it efficient for varying workload scenarios, but it may pose a learning curve for operators unfamiliar with such systems.
| Chassis | 4x2 2WD |
| Steering | power assist |
| Brakes | differential mechanical expanding shoe |
| Cab | Open operator station |
| Transmission | 10-speed full power shift |
CAPACITY
| Fuel | 13gal / 49.2L |
| Hydraulic system | 2gal / 7.6L |
HYDRAULICS
| Type | open |
| Capacity | 2gal / 7.6L |
TRACTOR HITCH
| Rear Type | I |
| Rear lift | 1,250lbs / 567kg |
POWER TAKE-OFF (PTO)
| Rear PTO | live |
| Rear RPM | 540 |
FORD 771 TIRES
The Ford 771 tractor is equipped with 6x16 agricultural front tires and 11x28 agricultural rear tires, providing a balanced weight distribution and improved traction on varied terrains. The larger rear tires enhance stability and load-bearing capabilities, making it suitable for heavy-duty tasks like plowing or hauling. However, the relatively narrower front tires may present challenges in deep, muddy conditions, potentially affecting maneuverability.
| Ag front | 6x16 |
| Ag rear | 11x28 |
DIMENSIONS
| Wheelbase | 85.3inches / 216cm |
| Length | 132.1inches / 335cm |
| Height | 65.07inches / 165cm |
| Weight | 3,400lbs / 1542kg |
| Ground clearance | 27.25inches / 69cm |
| Front tread | 8.3 to 16.3inches / 21 to 41cm |
| Rear tread | 56 to 80inches / 142 to 203cm |
DIMENSIONS & TIRES
The Ford 771 tractor features a compact wheelbase of 85.3 inches, enhancing maneuverability in tight spaces, making it suitable for small to medium-sized farms. With a weight of 3,400 lbs, it provides adequate stability but may struggle with heavy tillage tasks, particularly in moist or uneven terrain. The tire sizes—6x16 in the front and 11x28 in the rear—offer a balanced distribution of traction, although rear tire size may limit its load-carrying capacity when compared to larger tractors.
| Wheelbase | 85.3inches / 216cm |
| Weight | 3,400lbs / 1542kg |
| Front tire | 6x16 |
| Rear tire | 11x28 |
771 SERIAL NUMBERS
| Location | The serial number on the Ford 771 is on the left side, behind the starter and on top of the transmission case |
| 1957 | 1001 |
| 1958 | 11977 |
| 1959 | 58312 |
| 1960 | 105943 |
| 1961 | 131427 |
| 1962 | 155531 |
ELECTRICAL
| Ground | positive (6V) / negative (12V) |
| Charging system | generator |
| Charging amps | 20 |
| Battery volts | 6 (gas/lp) / 12 (diesel) |
| Battery AH | 80 (6V) / 135 (12V) |