Advance-Rumely

Advance-Rumely OilPull X 25/40

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.
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 tire52x16 steel
Front tire34x7 steel
Engine
ModelRumley
Coolingliquid-cooled horizontal
Aux. fuel1.25 gal (4.7 L)
Cylinders2-cylinder
Fuel tank25.75 gal (97.5 L)
Fuel typekerosene
Rated RPM725
Air cleanerdry
Bore/Stroke6.8125x8.25 inches (173 x 210 mm)
Fuel systemcarburetor
Displacement601.4 ci (9.9 L)
Coolant capacity52 qts (49.2 L)
Dimensions
Width72 inches (182 cm)
Height101 inches (256 cm)
Length151 inches (383 cm)
Weight9,300 lbs (4218 kg)
Mechanical
DriveTwo-wheel drive
Steeringmanual
Operator stationOpen operator station
Production
TypeStandard-tread tractor
Built inLa Porte, Indiana, USA
Total built2,400
Years produced1928 - 1930
Belt Pulley
RPM725
Width8.5 inches (21 cm)
Diameter18.75 inches (47 cm)
Transmission
Typegear
Gears3 forward and 1 reverse
Clutchdry disc
Serial Numbers
19281
19292129
19303734