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Advance-Rumely OilPull X 25/40

Advance-Rumely OilPull X 25/40 tractor
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The Advance-Rumely OilPull X 25/40 is a standard-tread tractor produced from 1928 to 1930 by Advance-Rumely in La Porte, Indiana, USA. It features a Rumley 9.9L 2-cylinder liquid-cooled horizontal kerosene engine with a carburetor fuel system and dry air cleaner. The tractor has a 3-speed gear transmission with dry disc clutch and manual steering. It is a two-wheel drive tractor with an open operator station. The tractor's power ratings include 25 hp drawbar (claimed) and 40 hp belt (claimed), with tested drawbar and belt power of 38.66 hp and 50.26 hp respectively. Dimensions are 151 inches long, 72 inches wide, and 101 inches high, weighing 9,300 lbs. It rides on 34x7 steel front tires and 52x16 steel rear tires. The fuel tank capacity is 25.75 gallons with an auxiliary fuel tank of 1.25 gallons. The belt pulley diameter is 18.75 inches with a width of 8.5 inches running at 725 RPM. A total of 2,400 units were built during its production run.
Advance-RumelyOilPull X 25/40tractorspecificationsenginetransmissionpowerdimensionsfarm tractor
Power44 hp[B]
Founded1928 - 1930
ModelOilPull X 25/40

Technical Specifications

Detailed specifications and technical data for Advance-Rumely OilPull X 25/40

Power

Belt (tested):50.26 hp (37.5 kW)
Belt (claimed):40 hp (29.8 kW)
Drawbar (tested):38.66 hp (28.8 kW)
Drawbar (claimed):25 hp (18.6 kW)

Tires

Rear tire:52x16 steel
Front tire:34x7 steel

Engine

Model:Rumley
Cooling:liquid-cooled horizontal
Aux. fuel:1.25 gal (4.7 L)
Cylinders:2-cylinder
Fuel tank:25.75 gal (97.5 L)
Fuel type:kerosene
Rated RPM:725
Air cleaner:dry
Bore/Stroke:6.8125x8.25 inches (173 x 210 mm)
Fuel system:carburetor
Displacement:601.4 ci (9.9 L)
Coolant capacity:52 qts (49.2 L)

Dimensions

Width:72 inches (182 cm)
Height:101 inches (256 cm)
Length:151 inches (383 cm)
Weight:9,300 lbs (4218 kg)

Mechanical

Drive:Two-wheel drive
Steering:manual
Operator station:Open operator station

Production

Type:Standard-tread tractor
Built in:La Porte, Indiana, USA
Total built:2,400
Years produced:1928 - 1930

Belt Pulley

RPM:725
Width:8.5 inches (21 cm)
Diameter:18.75 inches (47 cm)

Transmission

Type:gear
Gears:3 forward and 1 reverse
Clutch:dry disc

Serial Numbers

1928:1
1929:2129
1930:3734