J.I. Case 20-40: all source data

All 64 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.

Overview

Production
ManufacturerJ.I. Case
(no label)Standard-tread tractor
(no label)Built in Racine, Wisconsin, USA
Total built4,465
Original price$2,100 (1916)
Engine
(no label)J.I. Case 12.4L 2-cyl kerosene
(no label)J.I. Case 14.8L 2-cyl kerosene
(no label)J.I. Case 17.7L 2-cyl kerosene
Fuel tank42 gal | 159.0 L
Transmission
(no label)2-speed gear
Power
Drawbar (claimed)20 hp | 14.9 kW
Belt (claimed)40 hp | 29.8 kW
Drawbar (tested)24.66 hp | 18.4 kW
Belt (tested)42.80 hp | 31.9 kW
Mechanical
(no label)Two-wheel drive
Steeringmanual
(no label)Open operator station. Optional four-post steel cab.
Dimensions
Weight13,900 lbs | 6305 kg
Front tire38x8
Rear tire66x20
Serial location
(no label)Serial number plate on left side of tractor frame, above the front axle.
Belt pulley
Diameter24 inches | 60 cm
Width8.5 inches | 21 cm

Engine

Engine options
(no label)J.I. Case 12.4L 2-cyl kerosene
(no label)J.I. Case 14.8L 2-cyl kerosene
(no label)J.I. Case 17.7L 2-cyl kerosene
Engine detail
(no label)J.I. Case
(no label)kerosene
(no label)2-cylinder
(no label)liquid-cooled opposed-twin
(no label)The original engine, was used on the first model 40 tractors produced in 1912.
Displacement755 ci | 12.4 L
Bore/Stroke7.75x8.00 inches | 197 x 203 mm
Rated RPM450
Starter typehand-crank
(no label)J.I. Case
(no label)kerosene
(no label)2-cylinder
(no label)liquid-cooled opposed-twin
(no label)The 8-inch bore engine replaced the original engine early in production, at the end of 1912.
Displacement904 ci | 14.8 L
Bore/Stroke8.00x9.00 inches | 203 x 229 mm
Rated RPM475
Starter typehand-crank
Coolant capacity (Coolant)112 qts | 106.0 L
(no label)J.I. Case
(no label)kerosene
(no label)2-cylinder
(no label)liquid-cooled
(no label)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.
Displacement1082 ci | 17.7 L
Bore/Stroke8.75x9.00 inches | 222 x 229 mm
Rated RPM475
Starter typehand-crank

Transmission

Transmission
TransmissionJ.I. Case
Typegear
Gears2 forward and 1 reverse

Dimensions

Tires
Ag front38x8 steel
Ag rear66x20 steel
Dimensions
Length177 inches | 449 cm
Width100 inches | 254 cm
Height107 inches | 271 cm
Operating weight13,900 lbs | 6305 kg
Rear axle3.94 inch diameter | 100 mm