1918-1924

By the time Advance-Rumely announced the 20-40 “G” tractor in 1918, the OilPull name had gained the reputation of first-class quality and reliability among its peers. The 20-40, following the same general design as its counterparts, provided an intermediate size large enough for most threshing jobs but without the added size and cost of the big 30-60 model. Weighing nearly 6 1/2 tons, the 20-40 was powered by a 2-cylinder engine rated at 450 rpm and using an 8 x 10 inch bore and stroke. Fuel consumption totaled 4 1/4 gallons per hour under the rated load of 40 belt horsepower. The original OilPull styling carried with it the dependability that farmers required, but by the early 1920s, farmers were looking for lightweight designs that could be used all around the farm. Development of new tractor design brought demand for the heavyweight OilPull design to a halt, so in 1924 Advance-Rumely ceased production of the entire “heavyweight” series. This entire series was available with various options that included various extension rims and an extensive selection of drive lugs to suit specific applications. Also available was a special high altitude cylinder head for use at altitudes of 4,000 feet or more.

Engine: Advance Rumely Horizontial Opposed

Cylinders: 2 horizontal, 8 x 10 inches

Bore and Stroke: 8.00x10.00

RPM: 450

CID: 1005.3

Fuel: Kerosene/Gasoline

Main Fuel Tank Cap: 41

Aux Fuel Tank Cap:1

Carburetor: Secor Higgins 2 3/4 inches

Air Cleaner: Donaldson

Cooling Capacity: 17.5

Drawbar HP: 30.07

Belt PTO HP: 46.19

Weight 12,880 lbs

Length: 175 inches

Width: 89 inches

Height: 112

Number of Gears: 2/1

Valve arrangement: In head

Ignition: High tension magneto, impulse starter

Lubrication: Force feed and splash

Cooling system: Oil pump circulation

Pulley: Face 9 inches; diameter 26 inches; RPM 450

Transmission: Closed spur gears, steel cut

Traction: Two wheels, 64 inches high; 20 inches wide

Turning circle: 21 feet

Speeds: Miles per hour, 2 and 3.2

Plows pulled: Five to six, 14-inch bottoms

Total Produced: 7,951

1918: 10425-10750

1919: 10751-15221

1919: G741-G948

1920: G949-G1727

1921: G1728-G2241

1922: G2242-G2689

1923: G2690-G3558

1924: G3559-G3894