Wallis OK 15-27: all source data
All 34 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | Wallis (a part of J.I. Case Plow Works) |
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| (no label) | Standard-tread tractor |
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| (no label) | Built in Racine, Wisconsin, USA |
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Engine| (no label) | Wallis 5.3L 4-cyl gasoline |
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Transmission| (no label) | 2-speed gear |
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Power| Drawbar (claimed) | 15 hp | 11.2 kW |
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| Belt (claimed) | 27 hp | 20.1 kW |
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| Drawbar (tested) | 18.15 hp | 13.5 kW |
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| Belt (tested) | 28.60 hp | 21.3 kW |
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Mechanical| (no label) | Two-wheel drive |
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| Steering | manual |
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Dimensions| Weight | 3,630 lbs | 1646 kg |
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| Front tire | 30x8 |
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| Rear tire | 48x12 |
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Belt pulley| Diameter | 18.5 inches | 46 cm |
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| Width | 7 inches | 17 cm |
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| RPM | 475 |
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| Speed | 2,300 ft/min | 701.04 meters/min |
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Engine
Engine detail| (no label) | Wallis |
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| (no label) | gasoline |
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| (no label) | 4-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 326.3 ci | 5.3 L |
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| Bore/Stroke | 4.25x5.75 inches | 108 x 146 mm |
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| Rated RPM | 1000 |
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| Starter type | hand-crank |
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Transmission
Transmission| Type | gear |
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| Gears | 2 forward and 1 reverse |
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Dimensions
Tires| Ag front | 30x8 (steel) |
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| Ag rear | 48x12 (steel) |
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Dimensions| Length | 132 inches | 335 cm |
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| Width | 61 inches | 154 cm |
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| Height | 65 inches | 165 cm |
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| Weight | 3,630 lbs | 1646 kg |
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