Advance-Rumely OilPull L 15/25 Specs ( 1924-1927 )
Overview
The Advance-Rumely OilPull L 15/25 is a 2-wheel drive farm tractor produced between 1924 and 1927 in La Porte, Indiana. It is powered by a 6.1L 2-cylinder liquid-cooled horizontal kerosene engine and features a 3-speed gear transmission with a dry disc clutch.
Ideal Applications
Tested Power Output:
During Nebraska Tractor Test 112, the model produced a maximum of 30.52 belt horsepower and 19.34 drawbar horsepower while consuming 3.6 gallons of kerosene per hour at maximum belt power.
Physical Dimensions and Chassis:
Equipped with steel wheels measuring 30x6 inches in the front and 44x12 inches in the rear, the tractor has a total weight of 5,900 lbs and a height of 90.5 inches.
Mechanical Configuration:
The tractor features a manual steering system, an open operator station, and a mechanical rear differential lock to manage its three forward gears and one reverse gear.
Production
| Description | Standard-tread tractor / Built in La Porte, Indiana, USA |
|---|---|
| Manufacturer | Advance-Rumely |
| Total built | 4,855 |
Engine
| Aux. fuel | 1.25 gal (4.7 L) |
|---|---|
| Engine type | Rumley 6.1L 2-cyl kerosene |
| Fuel tank | 18.25 gal (69.1 L) |
| Bore/Stroke | 5.8125x7.00 inches (148 x 178 mm) |
| Coolant capacity | 40 qts (37.9 L) |
| Description | Rumley / kerosene / 2-cylinder / liquid-cooled horizontal |
| Displacement | 371.5 ci (6.1 L) |
| Rated RPM | 755 |
| Belt (claimed) | 25 hp (18.6 kW) |
| Belt (tested) | 30.52 hp (22.8 kW) |
| Drawbar (claimed) | 15 hp (11.2 kW) |
| Drawbar (tested) | 19.34 hp (14.4 kW) |
Transmission
| Clutch | dry disc |
|---|---|
| Gears | 3 forward and 1 reverse |
| Transmission type | 3-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Manual steering |
| Differential lock | mechanical rear |
| Drive type | Two-wheel drive |
Dimensions & Tires
| Ag front | 30x6 (steel) |
|---|---|
| Ag rear | 44x12 (steel) |
| Height | 90.5 inches (229 cm) |
| Length | 136 inches (345 cm) |
| Weight | 5900 lbs (2676 kg) |
| Width | 55.75 inches (141 cm) |
| Front tire | 30x6 |
| Rear tire | 44x12 |
| Weight | 5900 lbs (2676 kg) |
Nebraska Tractor Test 112
| Belt fuel use (max) | 3.6 gal/hour (13.6 l/hour) |
|---|---|
| Belt power (max) | 30.52 hp (22.8 kW) |
| Description | Kerosene 3-speed 2WDMarch 29, 1925/ - April 16, 1925Link: Nebraska Tractor Test 112 file / Drawbar performance / Gear 1 used for power test. / Gear 2 used for pull test. |
| Max power | 19.34 hp (14.4 kW) |
| Max pull | 3327 lbs (1509 kg) |
OilPull L 15/25 Serial Numbers
| 1924 | 1 |
|---|---|
| 1925 | 11 |
| 1926 | 1607 |
| 1927 | 4214 |
| Description | FAQ: How to read a serial number table. |
References
| Description | Instruction Manual - Power Farming Schools published in 1927 |
|---|