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Years in Production / 1928–1930

Rumely

OilPull X 25/40

Explore the specifications, hardware, and original references for the Rumely OilPull X 25/40.

Generic tractor; no model photo available
No photo

44hp

Engine estimate · from belt

2WD Only

Drive

1928–1930

Production years

Rumely

Manufacturer

OilPull X 25/40 / 01

At a glance

Production

Standard-tread tractor

Built in La Porte, Indiana, USA

Manufacturer
Advance-Rumely
Total Built
2,400

Mechanical

Two-wheel drive

Open operator station.

Steering
manual

Belt Pulley

Diameter
18.75 inches47 cm
Width
8.5 inches21 cm
Rpm
725

OilPull X 25/40 / 02

Under the hood

Engine Detail

Rumley

kerosene

2-cylinder

liquid-cooled horizontal

Displacement
601.4 ci9.9 L
Bore Stroke
6.8125x8.25 inches173 x 210 mm
Fuel System
carburetor
Air Cleaner
dry
Rated Rpm
725
Coolant Capacity
52 qts49.2 L
Fuel Type
kerosene
Cylinders
2
Cooling
liquid-cooled horizontal

Engine Options

Rumley 9.9L 2-cyl kerosene

Fuel Tank
25.75 gal97.5 L
Aux Fuel
1.25 gal4.7 L

OilPull X 25/40 / 03

Gears & controls

Transmission

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

OilPull X 25/40 / 04

Size. Stance. Footprint.

Dimensions And Tires

Weight
9,300 lbs4218 kg
Front Tire
34x7
Rear Tire
52x16

Tires And Tracks

Front Ag
34x7 steel
Rear Ag
52x16 steel

OilPull X 25/40 / 05

Tests (NTTL)

Nebraska Tractor Test 143

Kerosene 3-speed 2WDOctober 6 - 13, 1927

Drawbar performance

Gear 1 used for power test.

Gear 1 used for pull test.

Id
143
Belt Power Max
50.26 hp37.5 kW
Belt Fuel Use Max
5.8 gal/hour22.0 l/hour
Max Power
38.66 hp28.8 kW
Max Pull
4787.5 lbs2171 kg