| Manufacturer | Rumely |
| Price | 3,671(USD) |
| Model | OilPull M 20/35 |
| Equipment Type | Standard-Tread Tractors |
| Factory | La Porte, Indiana |
ADVANCE-RUMELY OILPULL M 20/35 POWER
| Drawbar (claimed) | 20hp / 14.9kW |
| Belt (claimed) | 35hp / 26.1kW |
ENGINE DETAIL
The Rumely OilPull M 20/35 tractor features a kerosene-fueled, 2-cylinder horizontal opposed engine that delivers efficient, low-end torque suitable for heavy pulling tasks. With a displacement of 601.4 ci (9.9L) and a bore/stroke ratio of 6.81 x 8.25 inches, this tractor is optimized for durability and longevity, though its low rated RPM of 640 may limit its operational speed compared to modern tractors. The significant coolant capacity of 52 quarts (49.2L) helps maintain optimal engine temperatures during extended use, which can be beneficial in demanding agricultural scenarios.
| Description | Rumley kerosene 2-cylinder liquid-cooled horizontal opposed |
| Displacement | 601.4ci / 9.9L |
| Bore/Stroke | 6.8125x8.25 inches / 173 x 210mm |
| Rated RPM | 640 |
| Coolant capacity | 52qts / 49.2L |
ADVANCE-RUMELY OILPULL M 20/35 ENGINE
The Rumely OilPull M 20/35 features a robust 9.9L 2-cylinder kerosene engine, providing a balance of power and fuel efficiency. Its large 25.75-gallon fuel tank allows for extended operational periods, ideal for heavy agricultural applications or long-duration tasks without frequent refueling. However, its reliance on kerosene may pose challenges in areas where fuel availability is limited, necessitating planning for fuel logistics in the field.
| Description | Rumley 9.9L 2-cyl kerosene |
| Fuel tank | 25.75gal / 97.5L |
| Aux. fuel | 1.25gal / 4.7L |
TRANSMISSION
The Rumely OilPull M 20/35 features a simple three-speed forward and one-speed reverse gear system, which may limit its operational versatility compared to modern tractors with more extensive gear ranges. However, this straightforward transmission can enhance reliability and ease of maintenance, making it suitable for specific tasks like plowing and tilling at consistent speeds on flat terrain. Operators should consider its lower speed options as a trade-off for greater fuel efficiency and smooth operation, particularly in applications requiring steady power delivery.
| Type | gear |
| Gears | 3 forward and 1 reverse |
MECHANICAL
The Rumely OilPull M 20/35 features a 4x2 2WD chassis, which enhances maneuverability in agricultural settings but may limit traction on soft or hilly terrain. Its mechanical rear differential lock provides improved grip under load but may require operator skill for effective use in challenging conditions. The open operator station and manual steering system prioritize simplicity and visibility, though they offer minimal protection from environmental elements and require more operator effort compared to modern hydraulic systems.
| Chassis | 4x2 2WD |
| Differential lock | mechanical rear |
| Steering | manual |
| Cab | Open operator station |
| Transmission | 3-speed gear |
ADVANCE-RUMELY OILPULL M 20/35 TIRES
The Rumely OilPull M 20/35 features a unique kerosene-powered engine, optimizing fuel efficiency while delivering up to 35 horsepower. Equipped with durable, steel agricultural tires (34x7 front and 52x16 rear), it excels in traction and stability on rough terrain, making it suitable for heavy tillage tasks. However, its weight and limited maneuverability may pose challenges in tighter spaces, impacting its adaptability in smaller fields.
| Ag front | 34x7 steel |
| Ag rear | 52x16 steel |
DIMENSIONS
| Length | 151inches / 383cm |
| Width | 71.5inches / 181cm |
| Height | 101inches / 256cm |
| Weight | 8,600lbs / 3900kg |
DIMENSIONS & TIRES
The Rumely OilPull M 20/35 tractor, weighing 8,600 lbs (3,900 kg), features large rear tires (52x16) which enhance its traction and stability, particularly for plowing applications in varied terrains. The smaller front tires (34x7) can present a challenge with steering control at high loads, potentially leading to wear and tear on front-end components. This configuration is ideal for heavy-duty field operations, but operators should ensure proper weight distribution to maximize efficiency and minimize soil compaction.
| Weight | 8,600lbs / 3900kg |
| Front tire | 34x7 |
| Rear tire | 52x16 |
OILPULL M 20/35 SERIAL NUMBERS
| 1924 | 1 |
| 1925 | 2 |
| 1926 | 1014 |
| 1927 | 3085 |