Ford NAA Tractor

Manufacturer	Ford
Price	1,560(USD)
Model	NAA
Equipment Type	Utility Tractors
Factory	Highland Park, Michigan, USA

ENGINE DETAIL

The Ford NAA tractor features a robust 4-cylinder gasoline engine with a modest displacement of 2.2L and operates efficiently within a recommended range of 1500-2000 RPM. With a relatively low compression ratio of 6.6:1 and a torque output of 110 lb-ft at 1400 RPM, it efficiently delivers power for light to medium agricultural tasks, making it ideal for small farms. One challenge may be providing adequate starting power, as it operates on a 6-volt system, which can be less efficient compared to modern tractors with 12-volt systems, particularly in cold weather.

Description	Ford gasoline 4-cylinder 8-valve liquid-cooled
Displacemen	134ci / 2.2L
Bore/Strok	3.4375x3.60inches / 87x 91mm
Compressio	6.6:1
Rated RP	2000
Idle RP	450-2000
Operating RP	1500-2000
Torqu	110lb-ft / 149.2Nm
Torque RP	1400
Firing orde	1-2-4-3
Starter volt	6
Coolant capacit	15qts / 14.2L
Sparkplu	H-10 14mm
Sparkplug ga	0.025inches / 0.635mm
Point ga	0.025inches / 0.635mm

ENGINE OIL

The Ford NAA tractor features an oil capacity of 5 quarts (4.7 liters), which is essential for efficient lubrication and cooling of the engine. Pros include ease of maintenance due to a moderate oil volume, but a potential challenge could arise if the oil isn't changed regularly, leading to sludge buildup. Optimal performance is best achieved in agricultural tasks within moderate climates, as extreme temperatures can affect oil viscosity and engine operation.

Oil capacit

5qts / 4.7L

FORD NAA ENGINE

The Ford NAA tractor is equipped with a 2.2L 4-cylinder gasoline engine, which offers reliable power output for small to medium farming tasks. Its lightweight design and compact dimensions enhance maneuverability, making it ideal for tight spaces and varied terrains. However, fuel efficiency may be a concern compared to diesel alternatives, particularly over long durations or heavier loads.

Description

Ford 2.2L 4-cyl gasoline

TRANSMISSION

The Ford NAA tractor features a basic gear transmission with 4 forward and 1 reverse gear, requiring the operator to stop and engage the clutch for gear shifting, which may introduce delays in certain operational scenarios. The dry disc clutch has straightforward maintenance but can be less forgiving in wet conditions due to reduced grip. With an oil capacity of 5 quarts (4.7L) and a recommendation for SAE 80 oil at temperatures around 32°F (0°C), proper lubrication is critical to ensure optimal performance and prevent wear in colder environments.

Transmissio	Ford
Typ	gear
Gear	4 forward and 1 reverse
Clutc	dry disc
Oil capacit	5qts / 4.7L
32oF [0oC]	SAE80
Description	Tractor must be stopped, and clutch used, to shift gears

FORD NAA TRANSMISSION

The Ford NAA tractor features a 4-speed gear transmission, providing versatility in power delivery and speed selection for various tasks. This gearing system enhances its efficiency in both fieldwork and transport applications, although it may require more operator skill to master optimal gear usage. Limited by its historical design, the NAA's speed range may not meet modern demands for higher operational speeds but excels in precision work and is valued by vintage enthusiasts.

Description

4-speed gear

MECHANICAL

The Ford NAA tractor is designed for basic agricultural tasks, featuring a two-wheel drive system which enhances maneuverability in light-duty applications. Manual steering provides simplicity but may require more effort over extended use, particularly in rough terrain. While mechanical drum brakes offer reliable stopping power, they may not provide the same performance as modern hydraulic systems, potentially becoming a limitation during heavy loads or inclement weather.

Description

Two-wheel drive Manual steering Differential mechanical drum brakes Open operator station

CAPACITY

Fue	11gal / 41.6L
Hydraulic syste	2gal / 7.6L
Rear axl	8qts / 7.6L

HYDRAULICS

Typ	live
Capacit	2gal / 7.6L
Pressur	2000psi / 137.9bar
Pump flo	4.8gpm / 18.2lpm
32oF [0oC]	Type C Hydraulic Oil
Steering press	1750psi / 120.7bar

TRACTOR HITCH

Rear Typ	I
Contro	position and draft control
Rear lif	800lbs / 362kg

POWER TAKE-OFF (PTO)

Rear PT	transmission
Rear RP	540 (1.125)
Engine RP	545@1500

FORD NAA TIRES

The Ford NAA tractor features a front tire size of 5.50-16/6.00-16 and a rear tire size of 10-28, which indicates a balanced weight distribution crucial for maneuverability and stability during agricultural tasks. Its lightweight design enhances fuel efficiency and makes it suitable for small to medium-sized farms, but the limited horsepower may challenge performance in more demanding applications. Consider using this tractor for light-duty tasks such as mowing or cultivating, where its lower power requirements will yield effective results.

Ag fron	5.50-16/6.00-16
Ag rea	10-28

DIMENSIONS & TIRES

The Ford NAA tractor features a wheelbase of 73.875 inches, providing good maneuverability in tight spaces, which is advantageous for gardening and small farm tasks. With a weight range of 2,550 to 2,814 pounds, it offers stability and a favorable power-to-weight ratio for various applications, although its weight may limit transport options on smaller trailers. The tire specifications—5.50-16 front and 10-28 rear—indicate a balance between traction and flotation, making it suitable for both hard and soft terrains, but may require specific maintenance for optimal performance.

Wheelbas	73.875inches / 187cm
Weigh	2550 to 2814 pounds
Front tir	5.50-16
Rear tir	10-28

NAA SERIAL NUMBERS

195	NAA 77478
Fina	NAA 128965

NAA SERIAL LOCATION

Description

Front of engine block (early) or left side of transmission case (later)

BELT PULLEY

Diamete	9 inches/22 cm
RP	1358
Spee	3199ft/min / 975.06meters/min

ELECTRICAL

Groun	positive
Charging syste	generator
Charging amp	20
Battery volt	6

---

---