Advance-Rumely OilPull X 25/40 Specs ( 1928-1930 )
Overview
The Advance-Rumely OilPull X 25/40 is a kerosene-powered farm tractor manufactured in La Porte, Indiana, between 1928 and 1930. It features a 9.9L two-cylinder horizontal liquid-cooled engine and is equipped with a three-speed gear transmission and steel wheels. Tested under Nebraska Tractor Test 143, the unit recorded a maximum belt power of 50.26 hp and a maximum drawbar pull of 4,787.5 lbs.
Ideal Applications
Tested Belt Power Output:
The tractor is equipped with an 18.75-inch diameter belt pulley rated at 725 RPM, which demonstrated a tested maximum output of 50.26 hp.
Drawbar and Pulling Capacity:
During Nebraska Tractor Test 143, the 9,300-pound machine utilized its first gear to achieve a maximum drawbar pull of 4,787.5 lbs.
Kerosene Engine Specifications:
The 601.4 cubic inch engine is configured with a 25.75-gallon kerosene fuel tank and a 1.25-gallon auxiliary tank, with a maximum tested fuel consumption of 5.8 gallons per hour.
Production
| Description | Standard-tread tractor / Built in La Porte, Indiana, USA |
|---|---|
| Manufacturer | Advance-Rumely |
| Total built | 2,400 |
Engine
| Aux. fuel | 1.25 gal (4.7 L) |
|---|---|
| Engine type | Rumley 9.9L 2-cyl kerosene |
| Fuel tank | 25.75 gal (97.5 L) |
| Air cleaner | dry |
| Bore/Stroke | 6.8125x8.25 inches (173 x 210 mm) |
| Coolant capacity | 52 qts (49.2 L) |
| Description | Rumley / kerosene / 2-cylinder / liquid-cooled horizontal |
| Displacement | 601.4 ci (9.9 L) |
| Fuel system | carburetor |
| Rated RPM | 725 |
| Belt (claimed) | 40 hp (29.8 kW) |
| Belt (tested) | 50.26 hp (37.5 kW) |
| Drawbar (claimed) | 25 hp (18.6 kW) |
| Drawbar (tested) | 38.66 hp (28.8 kW) |
Transmission
| Clutch | dry disc |
|---|---|
| Gears | 3 forward and 1 reverse |
| Transmission type | 3-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Drive type | Two-wheel drive |
| Steering | manual |
Dimensions & Tires
| Ag front | 34x7 steel |
|---|---|
| Ag rear | 52x16 steel |
| Height | 101 inches (256 cm) |
| Length | 151 inches (383 cm) |
| Weight | 9,300 lbs (4218 kg) |
| Width | 72 inches (182 cm) |
| Front tire | 34x7 |
| Rear tire | 52x16 |
| Weight | 9,300 lbs (4218 kg) |
Belt Pulley
| Diameter | 18.75 inches (47 cm) |
|---|---|
| RPM | 725 |
| Width | 8.5 inches (21 cm) |
Nebraska Tractor Test 143
| Belt fuel use (max) | 5.8 gal/hour (22.0 l/hour) |
|---|---|
| Belt power (max) | 50.26 hp (37.5 kW) |
| Description | Kerosene 3-speed 2WDOctober 6 - 13, 1927Link: Nebraska Tractor Test 143 file / Drawbar performance / Gear 1 used for power test. / Gear 1 used for pull test. |
| Max power | 38.66 hp (28.8 kW) |
| Max pull | 4787.5 lbs (2171 kg) |
OilPull X 25/40 Serial Numbers
| 1928 | 1 |
|---|---|
| 1929 | 2129 |
| 1930 | 3734 |
| Description | FAQ: How to read a serial number table. |