Wallis Steevens 4” Traction Engine

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General Specifications

Length (overall)

71 1/2

Height (overall)

44 1/4

Track Front

20 7/8

Track Rear

27 1/2

Wheelbase

41”

Rear Wheel

2” dia x 4 3/4” wide

Front Wheel

14” dia x 213/16” wide

Flywheel

16” dia x 2” wide

Drive Gear

16” dia

2 Speed Gearing Ratio

1st - 7.6 Overall

Double Gear Drive to rear axle

2nd - 6.3 Overall

Weight (approximate)

11 cwt

Working Pressure

120 psi

Cylinder bore 

 3” dia

Stroke

 3 3/4

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