| Manufacturer |
Farmall |
| Price |
2,600(USD) |
| Model |
M |
| Equipment Type |
Row-Crop Tractors |
| Factory |
Rock Island, Illinois, USA |
ENGINES OVERVIEW
The Farmall M tractor is equipped with a versatile International Harvester 4.1L four-cylinder engine, available in both distillate and gasoline configurations, providing flexibility for fuel choice and operational cost reduction. An advantage of the distillate version is its ability to operate efficiently with lower-cost fuels, though it may require additional maintenance for optimal performance. The gasoline variant offers quicker starts and smoother operation but may result in higher fuel expenses, ideal for farmers prioritizing immediate power and responsiveness.
| Description |
International Harvester 4.1L 4-cyl distillate International Harvester 4.1L 4-cyl gasoline |
ENGINE DETAIL 1
The Farmall M tractor is powered by a 4-cylinder liquid-cooled engine with a displacement of 247.7 ci (4.1L) and a low compression ratio, making it well-suited for distillate and kerosene. The 1,450 RPM rated speed provides a stable power output for various agricultural tasks, but the specific firing order (1-3-4-2) may require careful timing adjustments to ensure optimal performance. Keep in mind the oil and coolant capacities (8 qts and 24 qts, respectively) for effective maintenance, as they can influence operational efficiency and engine longevity.
| Description |
International Harvester distillate 4-cylinder liquid-cooled vertical I-head |
| Displacemen |
247.7ci / 4.1L |
| Bore/Strok |
3.875x5.25inches / 98x 133 mm |
| Compressio |
4.75:1/4.5:1 *Kerosene engine |
| Rated RP |
1,450 |
| Firing orde |
1-3-4-2 |
| Oil capacit |
8 qts/7.6 L |
| Coolant capacit |
24qts / 22.7L |
| Sparkplug ga |
0.025inches / 0.635 mm |
| Point ga |
0.013inches / 0.330 mm |
| Intake valve clearanc |
0.017 inches*Hot/0.432 mm |
| Exhaust valve clearanc |
0.017 inches*Hot/0.432 mm |
ENGINE DETAIL 2
The Farmall M tractor is powered by a robust International Harvester C248 gasoline engine, featuring a displacement of 247.7 ci (4.1 L) and a low compression ratio of 5.65:1, which may affect fuel efficiency but enhances reliability and longevity during heavy-duty applications. Its bore and stroke dimensions (3.875 x 5.25 inches) provide a good torque curve, optimal for pulling tasks on the farm, while the rated RPM of 1450 allows for sufficient low-end power for various farming operations. Notably, the relatively high oil capacity (8 qts) and coolant capacity (24 qts) ensure effective engine cooling and lubrication, making it suitable for extended runtimes in demanding conditions.
| Description |
International Harvester C248 gasoline 4-cylinder liquid-cooled vertical I-head |
| Displacemen |
247.7ci / 4.1L |
| Bore/Strok |
3.875x5.25inches / 98x 133 mm |
| Compressio |
5.65:1 |
| Rated RP |
1450 |
| Firing orde |
1-3-4-2 |
| Oil capacit |
8 qts/7.6 L |
| Coolant capacit |
24qts / 22.7L |
FARMALL M ENGINES
The Farmall M tractor features a robust 4.1L 4-cylinder engine variant capable of running on both distillate and gasoline, offering flexibility in fuel choice. Its 21-gallon fuel tank provides a substantial operational range, while the auxiliary 1-gallon tank allows for minor fuel adjustments or usage of different blends. Key advantages include versatility in fuel types, although the older engine design may present challenges in fuel efficiency and emissions compliance in modern agricultural practices.
| Description |
International Harvester 4.1L 4-cyl distillate/International Harvester 4.1L 4-cyl gasoline |
| Fuel tan |
21gal / 79.5L |
| Aux. fue |
1 gal/3.8 L |
TRANSMISSION
The Farmall M features a sliding gear type transmission with 5 forward and 1 reverse gear options, providing versatility in various field conditions. The advantages include straightforward operation and ease of maintenance, but it may lack the smooth shifting of more modern systems, potentially complicating precise maneuvering. Optimal for tasks such as cultivating and plowing, where consistent power transfer is more critical than rapid gear changes.
| Typ |
sliding gear |
| Gear |
5 forward and 1 reverse |
FARMALL M TRANSMISSION
The Farmall M tractor features a 5-speed sliding gear transmission, providing versatile speed adjustments for varying field conditions. This enhances operational efficiency, allowing for improved torque management during tasks like plowing or hauling. However, users may face challenges with gear shifting under load, which requires practice to achieve smooth transitions and prevent drivetrain damage.
| Description |
5-speed sliding gear |
MECHANICAL
The Farmall M tractor's two-wheel drive system provides a straightforward power delivery but may struggle with traction on uneven terrain. Its manual steering demands physical effort, which could be a challenge in extended operations, especially without power assist. The mechanical contracting band brakes offer reliable stopping power but may require more maintenance compared to hydraulic systems, making regular service checks essential for optimal performance.
| Description |
Two-wheel drive Manual steering Mechanical contracting band brakes Open operator station |
HYDRAULICS
| Typ |
Lift-All . Transmission-driven pump. |
| Pressur |
500 psi (early)/34.5 bar/800 psi (late)/55.2 bar |
POWER TAKE-OFF (PTO)
FARMALL M TIRES
The Farmall M, equipped with steel agricultural front tires (22.50x4) and a range of rear tire options (51x8, 10-38, 12-38, 11.25-36), offers robust traction and durability, ideal for tillage and heavy load applications. However, steel tires can result in a harsher ride and increased soil compaction compared to rubber alternatives. For optimal performance, consider tire selection based on specific tasks, such as field work versus transport, to enhance efficiency and minimize soil disturbance.
| Ag fron |
22.50x4 (steel) |
| Ag rea |
51x8 (steel)/10-38/12-38/11.25-36 |
DIMENSIONS & TIRES
The Farmall M tractor, with a weight of 4858 lbs (2203 kg), provides a stable base for various agricultural tasks, especially in fieldwork where traction is critical. Its tire specifications, 6.00-16 in the front and 11-38 in the rear, contribute to effective weight distribution and soil compaction, enhancing its performance in both tillage and hauling scenarios. However, the relatively narrow front tires may pose challenges in heavy mud or loose terrain, potentially affecting maneuverability.
| Weigh |
4858lbs / 2203kg |
| Front tir |
6.00-16 |
| Rear tir |
11-38 |
M SERIAL NUMBERS
| 193 |
FBK501 |
| 194 |
FBK180514 |
| 195 |
FBK290923 |
| Fina |
FBK298218 |
M SERIAL LOCATION
| Description |
Data plate on the left side of the engine area. |
