Case
J.I. Case 20-40
The J.I. Case 20-40 is a standard-tread farm tractor produced from 1912 to 1919 in Racine, Wisconsin, USA. It features a two-cylinder kerosene engine available in three displacements (12.4L, 14.8L, and 17.7L) with liquid-cooled opposed-twin design. The tractor has a 2-speed gear transmission with 2 forward and 1 reverse gears. It delivers a claimed drawbar power of 20 hp and belt power of 40 hp, with tested drawbar and belt powers slightly higher. The tractor is two-wheel drive with manual steering and an open operator station, with an optional four-post steel cab. Dimensions include a length of 177 inches, width of 100 inches, height of 107 inches, and operating weight of 13,900 lbs. Tires are 38x8 front and 66x20 rear steel wheels. The belt pulley diameter is 24 inches and width is 8.5 inches. The serial number plate is located on the left side of the tractor frame above the front axle.
Power44 hp[B]
Founded1912 - 1919
Model20-40
Technical Specifications
Detailed specifications and technical data for J.I. Case 20-40
Power
| Belt (tested) | 42.80 hp (31.9 kW) |
|---|---|
| Belt (claimed) | 40 hp (29.8 kW) |
| Drawbar (tested) | 24.66 hp (18.4 kW) |
| Drawbar (claimed) | 20 hp (14.9 kW) |
Tires
| Rear tire | 66x20 steel |
|---|---|
| Front tire | 38x8 steel |
Engine
| Fuel tank | 42 gal (159.0 L) |
|---|---|
| Rated RPM 1 | 450 |
| Rated RPM 2 | 475 |
| Rated RPM 3 | 475 |
| Bore/Stroke 1 | 7.75x8.00 inches (197 x 203 mm) |
| Bore/Stroke 2 | 8.00x9.00 inches (203 x 229 mm) |
| Bore/Stroke 3 | 8.75x9.00 inches (222 x 229 mm) |
| Displacement 1 | 755 ci (12.4 L) |
| Displacement 2 | 904 ci (14.8 L) |
| Displacement 3 | 1082 ci (17.7 L) |
| Engine options | J.I. Case 12.4L 2-cyl kerosene, J.I. Case 14.8L 2-cyl kerosene, J.I. Case 17.7L 2-cyl kerosene |
| Starter type 1 | hand-crank |
| Starter type 2 | hand-crank |
| Starter type 3 | hand-crank |
| Engine detail 1 | J.I. Case kerosene 2-cylinder liquid-cooled opposed-twin. The original engine, was used on the first model 40 tractors produced in 1912. |
| Engine detail 2 | J.I. Case kerosene 2-cylinder liquid-cooled opposed-twin. The 8-inch bore engine replaced the original engine early in production, at the end of 1912. |
| Engine detail 3 | J.I. Case kerosene 2-cylinder liquid-cooled. The final, 8.75-inch bore, engine replaced the 8-inch around 1916. Case did not re-rate the horsepower of the tractor, despite a 20% increase in displacement. |
| Coolant capacity | 112 qts (106.0 L) |
Dimensions
| Width | 100 inches (254 cm) |
|---|---|
| Height | 107 inches (271 cm) |
| Length | 177 inches (449 cm) |
| Rear axle | 3.94 inch diameter (100 mm) |
| Operating weight | 13,900 lbs (6305 kg) |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Steering | manual |
| Operator station | Open operator station. Optional four-post steel cab. |
Production
| Type | Standard-tread tractor |
|---|---|
| Built in | Racine, Wisconsin, USA |
| Total built | 4,465 |
| Original price | $2,100 (1916) |
| Years produced | 1912 - 1919 |
References
| Reference | Power Farming Machinery published in 1919, by J.I. Case |
|---|
Belt Pulley
| Width | 8.5 inches (21 cm) |
|---|---|
| Diameter | 24 inches (60 cm) |
Transmission
| Type | gear |
|---|---|
| Gears | 2 forward and 1 reverse |
| Transmission | J.I. Case |
Serial Number Location
| Location | Serial number plate on left side of tractor frame, above the front axle. |
|---|