Advance-Rumely OilPull R 25/45 Specs ( 1924-1927 )
Overview
The Advance-Rumely OilPull R 25/45 is a 2WD farm tractor produced from 1924 to 1927 in La Porte, Indiana, with a total production of 761 units. It is powered by a 14.9L 2-cylinder horizontal kerosene engine paired with a 3-speed gear transmission and an open operator station. The tractor weighs 11,750 lbs and is equipped with steel wheels measuring 38.5x8 in the front and 57.5x18 in the rear.
Ideal Applications
Tested Power Output:
According to Nebraska Tractor Test 116, the machine achieved a maximum belt power of 50.57 hp and a maximum drawbar pull of 6,321 lbs.
Engine and Fuel Specifications:
The 910.8 ci liquid-cooled engine operates at a rated 540 RPM and features a 31-gallon kerosene tank supplemented by a 1.25-gallon auxiliary tank.
Chassis and Drive Configuration:
The 11,750-pound tractor utilizes a 3-speed forward gear transmission and steel wheels on a frame measuring 167 inches in length and 107 inches in height.
Production
| Description | Standard-tread tractor / Built in La Porte, Indiana, USA |
|---|---|
| Manufacturer | Advance-Rumely |
| Total built | 761 |
Engine
| Aux. fuel | 1.25 gal (4.7 L) |
|---|---|
| Engine type | Rumley 14.9L 2-cyl kerosene |
| Fuel tank | 31 gal (117.3 L) |
| Bore/Stroke | 7.8125x9.50 inches (198 x 241 mm) |
| Coolant capacity | 92 qts (87.1 L) |
| Description | Rumley / kerosene / 2-cylinder / liquid-cooled horizontal |
| Displacement | 910.8 ci (14.9 L) |
| Rated RPM | 540 |
| Belt (claimed) | 45 hp (33.6 kW) |
| Belt (tested) | 50.57 hp (37.7 kW) |
| Drawbar (claimed) | 25 hp (18.6 kW) |
| Drawbar (tested) | 35.54 hp (26.5 kW) |
Transmission
| Gears | 3 forward and 1 reverse |
|---|---|
| Transmission type | 3-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Drive type | Two-wheel drive |
Dimensions & Tires
| Ag front | 38.5x8 steel |
|---|---|
| Ag rear | 57.5x18 steel |
| Height | 107 inches (271 cm) |
| Length | 167 inches (424 cm) |
| Weight | 11750 lbs (5329 kg) |
| Width | 82 inches (208 cm) |
| Front tire | 38.5x8 |
| Rear tire | 57.5x18 |
| Weight | 11750 lbs (5329 kg) |
Nebraska Tractor Test 116
| Belt power (max) | 50.57 hp (37.7 kW) |
|---|---|
| Description | Kerosene 3-speed 2WDJuly 7 - 14, 1925Link: Nebraska Tractor Test 116 file / Drawbar performance / Gear 2 used for power test. / Gear 1 used for pull test. |
| Max power | 35.54 hp (26.5 kW) |
| Max pull | 6321 lbs (2867 kg) |
OilPull R 25/45 Serial Numbers
| 1924 | 1 |
|---|---|
| 1925 | 2 |
| 1926 | 139 |
| 1927 | 648 |
| Description | FAQ: How to read a serial number table. |