Massey-Harris Pony 812 Specs ( 1951-1957 )
Overview
The Massey-Harris Pony 812 is a 15.8 hp gasoline-powered utility tractor manufactured in Marquette-lez-Lille, France, between 1951 and 1957. It features a Simca 1.2L 4-cylinder liquid-cooled engine and a manual 3-speed gear transmission with one reverse gear.
Ideal Applications
Engine and Power Output:
The tractor is equipped with a 74.5 cubic inch Simca engine rated at 1850 RPM, producing 15.8 hp with a 6.25:1 compression ratio.
Dimensions and Clearance:
The chassis is configured with a 66.9-inch wheelbase and provides 20.9 inches of ground clearance, with front and rear tread widths adjustable from 40.9 to 68.9 inches.
Mechanical and Transmission Configuration:
The drivetrain consists of a two-wheel drive system with spur gear final drives, mechanical band brakes, and an independent rear PTO.
Production
| Description | Utility tractor / Built in Marquette-lez-Lille, France |
|---|---|
| Manufacturer | Massey-Harris |
Engine
| Engine type | Simca 1.2L 4-cyl gasoline |
|---|---|
| Fuel tank | 6.9 gal (26.1 L) |
| Bore/Stroke | 2.83x2.95 inches (72 x 75 mm) |
| Compression | 6.25:1 |
| Description | Simca / gasoline / 4-cylinder / liquid-cooled |
| Displacement | 74.5 ci (1.2 L) |
| Oil capacity | 3 qts (2.8 L) |
| Power | 15.8 hp (11.8 kW) |
| Rated RPM | 1850 |
| Starter | electric |
| Starter volts | 6 |
Transmission
| Gears | 3 forward and 1 reverse |
|---|---|
| Oil capacity | 3.6 qts (3.4 L) |
| Transmission type | 3-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Manual steering / Mechanical band brakes |
| Drive type | Two-wheel drive |
| Final drives | spur gear |
PTO
| Rear PTO | independent |
|---|
Dimensions & Tires
| Ballasted weight | 2271 lbs (1030 kg) |
|---|---|
| Front tread | 40.9 to 68.9 inches (103 to 175 cm) |
| Ground clearance | 20.9 inches (53 cm) |
| Height | 61.4 inches (155 cm) |
| Length | 104.7 inches (265 cm) |
| Rear tread | 40.9 to 68.9 inches (103 to 175 cm) |
| Weight | 1653 lbs (749 kg) |
| Wheelbase | 66.9 inches (169 cm) |
| Width | 55.9 inches (141 cm) |
| Front tire | 4x15 |
| Rear tire | 8x24 |
| Weight | 1653 lbs (749 kg) |
| Wheelbase | 66.9 inches (169 cm) |
| Ag front | 4x15 |
| Ag rear | 8x24 |