Allis Chalmers
HD7
Farm tractor · 1940–1950 · 66 hp
Allis ChalmersHD7
The Allis Chalmers HD7 is a farm tractor manufactured from 1940 to 1950. It features a General Motors 3-71 engine. The transmission is a sliding gear type with 4 forward and 1 reverse.
Engine
| Engine | General Motors 3-71 |
|---|---|
| Fuel Type | blower diesel |
| Cylinders | 3 |
| Cooling | liquid-cooled 2-cycle vertical I-head |
| Displacement | 213 ci (3.5 L) |
| Bore | 4.25 in (108 mm) |
| Stroke | 5 in (127 mm) |
| Compression Ratio | 16 |
| Power Drawbar | 57.31 hp (42.7 kW) |
| Power Belt | 68.68 hp (51.2 kW) |
| Air Cleaner | oil bath |
| Starter Volts | 12 |
| Oil Capacity | 8.5 qts (8 L) |
| Coolant Capacity | 23 qts (21.8 L) |
| Manufacturer | General Motors |
| Rated | 1,500 RPM |
Transmission
| Transmission Type | sliding gear |
|---|---|
| Gears | 4 forward and 1 reverse |
| Oil Capacity | 21 qts (19.9 L) |
| Available Options | 4-speed sliding gear |
Dimensions
| Length | 128 in (325 cm) |
|---|---|
| Width | 81 in (205 cm) |
| Height | 69 in (175 cm) |
Weight
| Weight | 14,000 lbs (6,350 kg) |
|---|---|
| Operating | 14,000 lbs (6,350 kg) |
Tires & Tracks
| Track Width | 16 in (40 cm) |
|---|
Fuel
| Capacity | 31 gal (117.3 L) |
|---|