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Wallis OK 15-27 Specs ( 1923-1927 )

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Production

Description Standard-tread tractor / Built in Racine, Wisconsin, USA
Manufacturer Wallis (a part of J.I. Case Plow Works)

Engine

Engine type Wallis 5.3L 4-cyl gasoline
Bore/Stroke 4.25x5.75 inches (108 x 146 mm)
Description Wallis / gasoline / 4-cylinder / liquid-cooled
Displacement 326.3 ci (5.3 L)
Rated RPM 1000
Starter type hand-crank
Belt (claimed) 27 hp (20.1 kW)
Belt (tested) 28.60 hp (21.3 kW)
Drawbar (claimed) 15 hp (11.2 kW)
Drawbar (tested) 18.15 hp (13.5 kW)

Transmission

Gears 2 forward and 1 reverse
Transmission type 2-speed gear
Type gear

Mechanical

Drive type Two-wheel drive
Steering manual

Dimensions & Tires

Height 65 inches (165 cm)
Length 132 inches (335 cm)
Weight 3,630 lbs (1646 kg)
Width 61 inches (154 cm)
Front tire 30x8
Rear tire 48x12
Weight 3,630 lbs (1646 kg)
Ag front 30x8 (steel)
Ag rear 48x12 (steel)

Belt Pulley

Diameter 18.5 inches (46 cm)
RPM 475
Speed 2,300 ft/min (701.04 meters/min)
Width 7 inches (17 cm)

Nebraska Tractor Test 92

Belt fuel use (max) 3.5 gal/hour (13.2 l/hour)
Belt power (max) 28.60 hp (21.3 kW)
Description Gasoline 2-speed 2WDApril 26 - May 5, 1923 / Drawbar performance
Max power 18.15 hp (13.5 kW)
Max pull 2,590 lbs (1174 kg)