Introduction
Oliver 70 Row-Crop Tractor
The Oliver 70 is a row-crop tractor manufactured in Charles City, Iowa, USA, between 1935 and 1948. This model represents a significant era in mid-20th-century agricultural mechanization, designed specifically for row-crop applications.
Engine and Performance
The tractor is powered by a 6-cylinder Oliver distillate engine with a displacement of 201.3 cubic inches (3.3 liters). It features liquid cooling and operates at a rated speed of 1500 RPM. The engine configuration uses a 1-5-3-6-2-4 firing order, with intake and exhaust valve clearances set at 0.012 inches (0.305 mm). This power unit delivers approximately 33 horsepower, suitable for the standard agricultural tasks of its time.
Transmission and Drivetrain
The Oliver 70 employs a gear-driven transmission with a 229mm dry disc clutch. Initially offered with a 4-forward and 1-reverse gear configuration, a 6-speed transmission was introduced in 1937 with the 'streamlined' model. Notably, in tractors equipped with steel wheels, the top two gears of the 6-speed transmission were locked out to ensure safe operational speeds.
Mechanical and Dimensions
Built with a two-wheel-drive configuration, the tractor utilizes manual steering and mechanical drum brakes. It features an open operator station. The machine has a wheelbase of 90.5 inches (229 cm) and an overall length of 141.5 inches (359 cm). The operating weight is 4400 lbs (1995 kg), while the shipping weight is 3000 lbs (1360 kg). It is typically equipped with 5.50-16 front tires and 11-38 rear agricultural tires.
Conclusion
The Oliver 70 is a classic row-crop tractor characterized by its 6-cylinder engine and versatile transmission options. It remains a notable machine for collectors and historians interested in American agricultural engineering from the 1935 to 1948 period.
Production Information of Oliver, 70
- Row-Crop tractor
- Built in Charles City, Iowa, USA
| Manufacturer | Oliver |
|---|
Dimension and Tires Information of Oliver, 70
| Operating weight | 4400 lbs [1995 kg] |
|---|---|
| Wheelbase | 90.5 inches [229 cm] |
| Height (hood) | 58 inches [147 cm] |
| Height (steering wheel) | 70 inches [177 cm] |
| Length | 141.5 inches [359 cm] |
| Rear tread | 60 to 72 inches [152 to 182 cm] |
| Shipping weight | 3000 lbs [1360 kg] |
| Width | 80.5 inches [204 cm] |
| Rear tread(optional) | 72 to 90 inches [182 to 228 cm ] |
| Rear tread(optional) | 60 to 80 inches [152 to 203 cm ] |
| Ag front | 5.50-16 |
|---|---|
| Ag rear | 11-38 |
Engine Specifications of Oliver, 70
- Oliver
- Liquid-cooled
- Distillate
- 6-cylinder
| Coolant capacity | 4.5 qts [4.3 L] |
|---|---|
| Displacement | 201.3 ci [3.3 L] |
| Rated RPM | 1500 |
| Bore/Stroke | 3.125x4.375 inches [79 x 111 mm] |
| Exhaust valve clearance | 0.012 inches [0.305 mm] |
| Intake valve clearance | 0.012 inches [0.305 mm] |
| Oil capacity | 5 qts [4.7 L] |
| Firing order | 1-5-3-6-2-4 |
| Rated RPM | 1500 |
Transmission Information of Oliver, 70
Transmission variants 1
| Type | Gear |
|---|---|
| Oil capacity | 26 qts [24.6 L] |
| Gears | 4 forward and 1 reverse |
| Clutch | 229mm dry disc |
Transmission variants 2
- The six-speed transmission was introduced on the "streamlined" model 70 in 1937. The top two gears were locked out if the tractor was equipped with steel wheels.
| Type | Gear |
|---|---|
| Gears | 6 forward and 1 reverse |
- 4-speed gear
- 6-speed gear
Mechanical Specs of Oliver, 70
- Two-wheel drive
- Open operator station.
- Mechanical drum brakes
- Manual steering
| Final drives | Bull gear |
|---|
Power Information of Oliver, 70
- Https://www.tractordata.com/farm-tractors/000/6/7/670-oliver-70-tests.html
Where it sits
With 33 hp[P] HP, the Oliver 70 sits just below 77 (37 HP) in Oliver's range. Its power puts it in the 49th percentile of 1930s models in our database (235 machines).
Frequently asked questions
How much horsepower does the Oliver 70 have?
The Oliver 70 delivers 33 hp[P] HP.
What years was the Oliver 70 produced?
The Oliver 70 was produced in 1935-1948.
What engine does the Oliver 70 have?
The Oliver 70 is powered by a 6-cylinder engine.
What transmission does the Oliver 70 use?
The Oliver 70 uses a Gear transmission.
How much does the Oliver 70 weigh?
The Oliver 70 weighs 4400 lbs [1995 kg].
Is the Oliver 70 4WD?
The Oliver 70 is available in 2WD.