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Advance-Rumely OilPull L 15/25

Advance-Rumely OilPull L 15/25 tractor
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The Advance-Rumely OilPull L 15/25 is a standard-tread tractor produced from 1924 to 1927 by Advance-Rumely in La Porte, Indiana, USA. It features a Rumley 6.1L 2-cylinder liquid-cooled horizontal kerosene engine, a 3-speed gear transmission with dry disc clutch, and two-wheel drive with mechanical rear differential lock. The tractor has an open operator station and manual steering. It delivers 15 hp drawbar power (claimed) and 25 hp belt power (claimed), with tested drawbar power of 19.34 hp and belt power of 30.52 hp. The tractor weighs 5900 lbs and rides on steel tires sized 30x6 front and 44x12 rear.
Advance-RumelyOilPull L 15/25tractorspecificationsenginetransmissionpowerdimensionsproduction
Power27 hp[B]
Founded1924 - 1927
ModelOilPull L 15/25

Technical Specifications

Detailed specifications and technical data for Advance-Rumely OilPull L 15/25

Power

Belt (tested):30.52 hp (22.8 kW)
Belt (claimed):25 hp (18.6 kW)
Drawbar (tested):19.34 hp (14.4 kW)
Drawbar (claimed):15 hp (11.2 kW)

Tires

Rear tire:44x12 (steel)
Front tire:30x6 (steel)

Engine

Make:Rumley
Cooling:liquid-cooled horizontal
Aux. fuel:1.25 gal (4.7 L)
Cylinders:2-cylinder
Fuel tank:18.25 gal (69.1 L)
Fuel type:kerosene
Rated RPM:755
Bore/Stroke:5.8125x7.00 inches (148 x 178 mm)
Displacement:371.5 ci (6.1 L)
Coolant capacity:40 qts (37.9 L)

Dimensions

Width:55.75 inches (141 cm)
Height:90.5 inches (229 cm)
Length:136 inches (345 cm)
Weight:5900 lbs (2676 kg)

Mechanical

Drive:Two-wheel drive
Steering:Manual steering
Operator station:Open operator station
Differential lock:mechanical rear

Production

Type:Standard-tread tractor
Built in:La Porte, Indiana, USA
Total built:4,855
Manufacturer:Advance-Rumely
Years produced:1924 - 1927

References

Instruction Manual:Power Farming Schools published in 1927

Transmission

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

Serial Numbers

1924:1
1925:11
1926:1607
1927:4214