| Manufacturer |
Oliver |
| Price |
- |
| Model |
70 |
| Equipment Type |
Row-Crop Tractors |
| Factory |
Charles City, Iowa, USA |
VARIANTS
NEBRASKA TRACTOR TEST 252
| Description |
Gasoline 4-speed 2WD/April 13 - 24, 1936/Link: Nebraska Tractor Test 252 file/Drawbar performance/Gear 3 used for power test./Gear 1 used for pull test. |
| Belt power (max) |
28.40 hp/21.2 kW |
| Belt fuel use (max) |
2.7 gal/hour/10.2 l/hour |
| Max power |
21.93 hp/16.4 kW |
| Max pull |
3,120 lbs/1415 kg |
NEBRASKA TRACTOR TEST 267
| Description |
Distillate 4-speed 2WD/April 20 - 31, 1936/Link: Nebraska Tractor Test 267 file/Drawbar performance/Gear 3 used for power test./Gear 1 used for pull test. |
| Belt power (max) |
27.15 hp/20.2 kW |
| Belt fuel use (max) |
3.3 gal/hour/12.5 l/hour |
| Max power |
20.48 hp/15.3 kW |
| Max pull |
2,523 lbs/1144 kg |
NEBRASKA TRACTOR TEST 351
| Description |
Gasoline 6-speed 2WD/August 23 - 29, 1940/Link: Nebraska Tractor Test 351 file/Drawbar performance/Gear 3 used for power test./Gear 1 used for pull test. |
| Belt power (max) |
31.52 hp/23.5 kW |
| Belt fuel use (max) |
3.0 gal/hour/11.4 l/hour |
| Max power |
28.63 hp/21.3 kW |
| Max pull |
4,170 lbs/1891 kg |
OLIVER 70 POWER
| Drawbar (claimed) |
22.7 hp/16.9 kW |
| PTO (claimed) |
30.37 hp/22.6 kW |
| Drawbar (tested) |
28.63 hp/21.3 kW |
| Belt (tested) |
31.52 hp/23.5 kW |
ENGINES OVERVIEW
The Oliver 70 tractor is powered by a 3.3L 6-cylinder engine available in gasoline or distillate variants. Key advantages include its robust engine output, suitable for various field tasks, but users may face challenges related to fuel efficiency and engine maintenance, especially with the distillate version. Overall, it is ideal for medium-duty agricultural applications, where versatility and reliable performance are paramount.
| Description |
Oliver 3.3L 6-cyl gasoline/Oliver 3.3L 6-cyl distillate |
ENGINE DETAIL 1
The Oliver 70 tractor features a robust 6-cylinder gas engine with a 3.3 L displacement, providing optimal torque for agricultural tasks at a rated RPM of 1500. Its bore/stroke ratio of 3.125x4.375 inches suggests a design that prioritizes torque over high RPM performance, making it advantageous for plowing and heavy field work. However, the relatively low coolant capacity of 4.5 quarts necessitates careful monitoring during prolonged operation to avoid overheating, particularly in hot climates.
| Description |
Oliver/gasoline/6-cylinder/liquid-cooled |
| Displacement |
201.3 ci/3.3 L |
| Bore/Stroke |
3.125x4.375 inches/79 x 111 mm |
| Rated RPM |
1500 |
| Firing order |
1-5-3-6-2-4 |
| Coolant capacity |
4.5 qts/4.3 L |
ENGINE DETAIL 2
The Oliver 70 tractor features a robust 6-cylinder liquid-cooled engine, providing a displacement of 201.3 cubic inches (3.3 L) for effective power delivery at a rated RPM of 1500. Its bore and stroke dimensions (3.125 x 4.375 inches) indicate a longer stroke, which promotes torque at lower RPMs, making it ideal for applications requiring substantial pulling power, such as tillage or hauling. However, the engine's focus on low RPM output may limit its performance in high-speed applications, presenting a trade-off between torque and speed.
| Description |
Oliver/distillate/6-cylinder/liquid-cooled |
| Displacement |
201.3 ci/3.3 L |
| Bore/Stroke |
3.125x4.375 inches/79 x 111 mm |
| Rated RPM |
1500 |
OLIVER 70 ENGINES
The Oliver 70 tractor features a versatile 3.3L 6-cylinder engine, available in both gasoline and distillate variants, offering flexibility in fuel choice for different agricultural scenarios. With a fuel tank capacity of 16 gallons (60.6 liters), this tractor provides extended operational hours before refueling, beneficial for large-scale farming tasks or extended fieldwork. However, the relatively smaller fuel capacity may require more frequent stops than larger tractors, especially in demanding conditions.
| Description |
Oliver 3.3L 6-cyl gasoline/Oliver 3.3L 6-cyl distillate |
| Fuel tank |
16 gal/60.6 L |
TRANSMISSIONS OVERVIEW
The Oliver 70 tractor, available in both 4-speed and 6-speed transmissions, allows operators to optimize power delivery based on load conditions, enhancing fuel efficiency and performance. The 6-speed version offers a broader gear range, providing improved handling for various tasks, whereas the 4-speed model is simpler and potentially more reliable for basic operations. However, the complexity of the 6-speed transmission may result in increased maintenance requirements, so consider operational needs and mechanical support availability when choosing.
| Description |
4-speed/6-speed |
TRANSMISSION 1
The Oliver 70 tractor features a straightforward 4-speed forward transmission, which provides flexibility for various field operations but may limit precision during specific tasks due to its fewer gear options. The 1 reverse gear enables basic maneuverability but can be challenging in tight spaces or when quick directional changes are needed. Overall, this transmission setup is ideal for basic farming applications, while more complex operations may require a tractor with additional gearing options.
| Gears |
4 forward and 1 reverse |
TRANSMISSION 2
The Oliver 70 tractor features a six-speed transmission that enhances versatility and control, making it suitable for various agricultural tasks. The 1 reverse gear provides the operator with adequate maneuverability for tight spaces or reversing implements. However, the limited gear options may challenge operators in demanding conditions requiring a broader range of speeds.
| Gears |
6 forward and 1 reverse |
| Description |
The six-speed transmission was introduced on the |
MECHANICAL
The Oliver 70 tractor features a 4x2 2WD chassis, providing advantages in simplicity and reduced weight but limiting traction in slippery conditions. With manual steering, operators may experience increased physical effort for maneuverability, especially in tight spaces. The available 4-speed or optional 6-speed transmission allows for versatile speed adjustments, making it suitable for various agricultural tasks; however, it may lack the refinement of more modern transmission systems.
| Chassis |
4x2 2WD |
| Steering |
manual |
| Cab |
Open operator station. |
| Transmissions |
4-speed/6-speed |
OLIVER 70 TIRES
The Oliver 70 tractor features front tires sized 5.50-16 and rear tires 11-38, providing a balanced load distribution which enhances traction and stability in various agricultural conditions. The larger rear tires are advantageous for cultivating and tilling tasks, allowing for better ground engagement and reducing soil compaction. However, the tractor's lower horsepower may limit its efficiency in heavier applications, making it best suited for smaller farms or lighter tillage tasks.
| Ag front |
5.50-16 |
| Ag rear |
11-38 |
DIMENSIONS
| Wheelbase |
91.25 inches/231 cm |
| Weight |
4,400 lbs/1995 kg |
DIMENSIONS & TIRES
The Oliver 70 tractor features a wheelbase of 91.25 inches, providing enhanced stability and maneuverability, particularly useful for tighter agricultural tasks. Weighing 4,400 lbs, it offers a solid presence in the field, yet may be considered somewhat heavy for certain smaller implements. The rear tire size of 11-38 enhances traction in various soil conditions, but potential challenges include limited flotation in muddy environments due to the narrow front tire (5.50-16).
| Wheelbase |
91.25 inches/231 cm |
| Weight |
4,400 lbs/1995 kg |
| Front tire |
5.50-16 |
| Rear tire |
11-38 |
70 SERIAL NUMBERS
| 1935 |
20001 |
| 1936 |
200686 |
| 1937 |
208729 |
| 1938 |
219645 |
| 1939 |
223255 |
| 1940 |
231116 |
| 1941 |
236356 |
| 1942 |
241391 |
| 1943 |
243640 |
| 1944 |
244711 |
| 1945 |
250180 |
| 1946 |
252780 |
| 1947 |
258140 |
| 1948 |
262840 |
