| Manufacturer | Allis Chalmers |
| Price | 970(USD) |
| Model | G |
| Equipment Type | Tool Carrier Tractors |
| Factory | Gadsden, Alabama, USA |
NEBRASKA TRACTOR TEST 398 2
| Description | Gasoline 4-speed 2WD July 16 - 30, 1948 Link: Nebraska Tractor Test 398 file Drawbar performance Gear 2 used for power test. Gear 1 used for pull test |
| Belt power (max) | 10.33hp / 7.7kW |
| Belt fuel use (max) | 1.2gal/hour / 4.5l/hour |
| Max power | 9.04hp / 6.7kW |
| Max pull | 1,143lbs / 518kg |
ALLIS CHALMERS G POWER
| Drawbar (claimed) | 10hp / 7.5kW |
| Drawbar (tested) | 9.04hp / 6.7kW |
| Belt (tested) | 10.33hp / 7.7kW |
ENGINE DETAIL
The Allis Chalmers G tractor features a Continental AN-62 engine with a modest 1.0L displacement and low compression ratio of 5.75:1, making it ideal for light agricultural tasks but potentially limiting power for heavier applications. It operates efficiently at 1800 RPM with a simple oil bath air cleaner that promotes engine longevity but may require regular maintenance. With a small coolant capacity of 6.5 quarts, ensure adequate monitoring to prevent overheating during extended use, as the engine's valve clearances are quite tight, requiring precise adjustments for optimal performance.
| Description | Continental AN-62 gasoline 4-cylinder liquid-cooled vertical L-head |
| Displacement | 62ci / 1.0L |
| Bore/Stroke | 2.375x3.50inches / 60x 89 mm |
| Air cleaner | oil bath |
| Compression | 5.75:1 |
| Rated RPM | 1800 |
| Firing order | 1-3-4-2 |
| Starter volts | 6 |
| Coolant capacity | 6.5qts / 6.2L |
| Sparkplug gap | 0.025inches / 0.635 mm |
| Point gap | 0.020inches / 0.508 mm |
| Intake valve clearance | 0.010inches / 0.254 mm (hot) |
| Exhaust valve clearance | 0.010inches / 0.254 mm (hot) |
ALLIS CHALMERS G ENGINE
The Allis Chalmers G tractor features a Continental 1.0L 4-cylinder gasoline engine, offering adequate power for light agricultural tasks but may struggle with larger implements due to its limited displacement. The 5-gallon (18.9 L) fuel tank provides relatively limited operating range, necessitating frequent refueling during extended work sessions. Its compact size and fuel efficiency make it ideal for small farms or garden operations, but users should be aware of its vulnerability to being underpowered in heavier applications.
| Description | Continental 1.0L 4-cyl gasoline |
| Fuel tank | 5 gal /18.9 L |
TRANSMISSIONS OVERVIEW
The Allis Chalmers G tractor features a 3-speed non-synchronized gear system or an optional 4-speed non-synchronized configuration, which can limit operational flexibility due to the absence of synchronization during shifting. The design is beneficial for tasks requiring continuous speed adjustment but may pose challenges in operator skill requirements for smooth gear transitions. Optimal usage scenarios include light to medium-duty applications where gear shifting frequency is low, minimizing the impact of the non-synchronized gear operation.
| Description | 3-speed non-synchronized gear/4-speed non-synchronized |
TRANSMISSION 1
The Allis Chalmers G features a non-synchronized transmission with three forward gears and one reverse, offering simplicity and ease of use in agricultural applications. While this allows for straightforward operation, the lack of synchronization can lead to difficulty in gear shifting, particularly under load. This model is ideal for smaller farms or gardening tasks, where low-speed maneuverability and ease of maintenance are prioritized over high-speed performance.
| Type | non-synchronized gear |
| Gears | 3 forward and 1 reverse |
TRANSMISSION 2
The Allis Chalmers G tractor features a non-synchronized creeper transmission, which allows for precise control in low-speed operations, ideal for tasks like cultivating or mowing in tight spaces. With 4 forward and 1 reverse gear, it offers limited speed options but excels in torque, making it suitable for heavy-duty agricultural tasks. A challenge may be its lower top speed, which can hinder transport efficiency over long distances.
| Transmission | creeper |
| Type | non-synchronized |
| Gears | 4 forward and 1 reverse |
MECHANICAL
The Allis Chalmers G tractor features a 4x2 2WD chassis, making it more suitable for flat or light terrain operations, though it may struggle on steep or muddy surfaces compared to 4WD models. Its manual steering and mechanical external expanding brakes require more operator input but offer simplicity and ease of maintenance. The 3-speed and 4-speed non-synchronized transmissions provide basic speed control, ideal for farmers familiar with gear shifting but may hinder operation in dynamic field conditions.
| Chassis | 4x2 2WD |
| Steering | manual |
| Brakes | mechanical external expanding |
| Cab | Open operator station. |
| Transmissions | 3-speed non-synchronized gear/4-speed non-synchronized |
ALLIS CHALMERS G TIRES
The Allis Chalmers G is a compact, lightweight tractor optimized for gardening and small farm tasks, featuring a narrow front and wide rear tire configuration that enhances stability and traction on varied terrains. The Ag front tire size of 4.00-12 offers maneuverability in tight spaces, while the 6-30 rear tires provide higher ground clearance for improved performance over uneven surfaces. Pros include versatility for lawn and garden operations; however, its limited horsepower may challenge larger applications requiring more power and force.
| Ag front | 4.00-12 |
| Ag rear | 6-30 |
DIMENSIONS
| Length | 114.5inches / 290cm |
| Height (steering wheel) | 55.7inches / 141cm |
| Front tread | 36 to 64inches / 91to 162 cm |
| Rear tread | 36 to 64inches / 91to 162 cm |
ALLIS CHALMERS G WEIGHT
| Shipping | 1,285lbs / 582kg |
| Operating | 1,400lbs / 635kg |
| Ballasted | 1,750lbs / 793kg |
DIMENSIONS & TIRES
The Allis Chalmers G tractor, weighing between 1285 to 1400 pounds, offers a balance of stability and maneuverability, making it suitable for small to medium-sized farming applications. Its front tires (4.00-12) provide better traction in tight spaces, while the larger rear tires (6-30) enhance stability and power transfer during load-bearing tasks. A potential challenge is the limited lift capacity due to its lightweight, which could affect heavy tillage operations if not matched with appropriate implements.
| Weight | 1285 to 1400 pounds |
| Front tire | 4.00-12 |
| Rear tire | 6-30 |
G SERIAL NUMBERS
| Location | Top of transmission case, rear of shift lever |
| 1948 | 6 |
| 1949 | 10961 |
| 1950 | 23180 |
| 1951 | 24006 |
| 1952 | 25269 |
| 1953 | 26497 |
| 1954 | 28036 |
| 1955 | 29036 |
| Final | 29976 |
BELT PULLEY
| Diameter | 6 inches /15 cm |
| Width | 4 inches /10 cm |
| RPM | 1950 |
| Speed | 3,063ft/min / 933.60 meters/min |
ELECTRICAL
| Ground | positive |
| Charging system | generator |
| Battery volts | 6 |