McCormick-Deering TD-40
Power
53 hp[B] hp
Production
1933-1939
Engine
The TD-40's diesel engine was started on gasoline and then switched to diesel. The engine was manually cranked from the left side, which supplied fuel to a spark-ignition combustion chamber. Exhaust gas from this chamber was directed into the cylinders of the diesel. At 700 RPMs the gasoline chamber shut down and the engine ran as a true diesel., The TD-40's diesel engine was started on gasoline and then switched to diesel. The engine was manually cranked from the left side, which supplied fuel to a spark-ignition combustion chamber. Exhaust gas from this chamber was directed into the cylinders of the diesel. At 700 RPMs the gasoline chamber shut down and the engine ran as a true diesel.
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Introduction
McCormick-Deering TD-40 Crawler Tractor
The McCormick-Deering TD-40 is an agricultural crawler tractor manufactured by International Harvester in Melrose Park, Illinois, between 1933 and 1939. Designed for heavy-duty field operations, this tracked machine was engineered to provide significant traction and power during the mid-1930s.
Engine and Combustion System
The TD-40 is powered by a 4-cylinder, liquid-cooled vertical I-head diesel engine with a displacement of 460.7 cubic inches (7.6 liters). A distinctive feature of this model is its dual-fuel starting system: the engine was manually cranked on gasoline to initiate combustion in a spark-ignition chamber. Once the engine reached 700 RPM, it transitioned to standard diesel operation. The engine has a compression ratio of 15:1 and a bore/stroke measurement of 4.75 by 6.50 inches.
Transmission and Power
The tractor delivers 53 horsepower to the drivetrain. It is equipped with a transmission providing 5 forward gears and 1 reverse gear, allowing for a range of speeds suitable for varied agricultural tasks. The machine features a rear power take-off (PTO) with a rated speed of 535 RPM.
Chassis and Dimensions
As a crawler tractor, the TD-40 operates on 16-inch wide tracks designed to distribute weight and maximize surface contact on soft or uneven ground. The machine weighs between 12,400 and 12,750 pounds. The operator station is of the open type, with optional configurations including a canopy or a steel cab for protection from the elements.
Conclusion
The McCormick-Deering TD-40 served as a reliable heavy-duty tractor for farmers requiring high traction and consistent power output. Its unique starting technology and robust construction make it a significant model in the history of International Harvester’s agricultural crawler development.
Production Information of McCormick-Deering, TD-40
- Agricultural Crawler tractor
- Built in Melrose Park, Illinois, USA
| Manufacturer | McCormick-Deering (a part of International Harvester) |
|---|
Engine Specifications of McCormick-Deering, TD-40
- The TD-40's diesel engine was started on gasoline and then switched to diesel. The engine was manually cranked from the left side, which supplied fuel to a spark-ignition combustion chamber. Exhaust gas from this chamber was directed into the cylinders of the diesel. At 700 RPMs the gasoline chamber shut down and the engine ran as a true diesel.
- Liquid-cooled vertical I-head
- Diesel
- 4-cylinder
| Coolant capacity | 60 qts [56.8 L] |
|---|---|
| Compression | 15:1 |
| Displacement | 460.7 ci [7.6 L] |
| Oil capacity | 12 qts [11.4 L] |
| Rated RPM | 1100 |
| Bore/Stroke | 4.75x6.50 inches [121 x 165 mm] |
Transmission Information of McCormick-Deering, TD-40
Transmission variants 1
| Gears | 5 forward and 1 reverse |
|---|
Mechanical Specs of McCormick-Deering, TD-40
- Open operator station. Optional canopy or steel cab.
| Drive | Crawler |
|---|
Power Information of McCormick-Deering, TD-40
| Rear PTO Type | 535 |
|---|
Where it sits
With 53 hp[B] HP, the McCormick-Deering TD-40 sits between Super W-6 (51 HP) and AW-7 (54 HP) in McCormick-Deering's range. Its power puts it in the 84th percentile of 1930s models in our database (235 machines).
Frequently asked questions
How much horsepower does the McCormick-Deering TD-40 have?
The McCormick-Deering TD-40 delivers 53 hp[B] HP.
What years was the McCormick-Deering TD-40 produced?
The McCormick-Deering TD-40 was produced in 1933-1939.
What engine does the McCormick-Deering TD-40 have?
The McCormick-Deering TD-40 is powered by a The TD-40's diesel engine was started on gasoline and then switched to diesel. The engine was manually cranked from the left side, which supplied fuel to a spark-ignition combustion chamber. Exhaust gas from this chamber was directed into the cylinders of the diesel. At 700 RPMs the gasoline chamber shut down and the engine ran as a true diesel., The TD-40's diesel engine was started on gasoline and then switched to diesel. The engine was manually cranked from the left side, which supplied fuel to a spark-ignition combustion chamber. Exhaust gas from this chamber was directed into the cylinders of the diesel. At 700 RPMs the gasoline chamber shut down and the engine ran as a true diesel. engine.