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J.I. Case 20-40

J.I. Case 20-40 tractor
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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.
J.I. Case 20-40tractorspecificationsenginetransmissionpowerdimensionsfarm tractor
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.

Related Models

J.I. Case 22-40

Model:22-40