Allis Chalmers CA - Horsepower, Weight, Specs, Problems, Price & More
The Allis Chalmers CA tractor is powered by a Allis Chalmers 2.1L 4-cyl gasoline engine. It has a 4x2 2WD drive configuration and a non-synchronized transmission.
Engine
The engine is a 4-cylinder 8-valve liquid-cooled vertical I-head with a displacement of 125.2ci / 2.1L. It has an oil bath air cleaner and a compression ratio of 6.25:1. The engine is rated at 1650 RPM and has a firing order of 1-2-4-3. The coolant capacity is 9 qts /8.5 L. The sparkplug gap is 0.030inches / 0.762 mm.
Transmission
The transmission has 4 forward and 1 reverse gears. It is non-synchronized and has a dry disc clutch. The drawbar (claimed) is 18hp / 13.4kW, while the PTO (claimed) is 23hp / 17.2kW. The drawbar (tested) is 22.97hp / 17.1kW, while the belt (tested) is 25.96hp / 19.4kW. The transmission is reliable and easy to use.
Brakes
The brakes are differential mechanical contracting band. The engine powers the hydraulic pump, which provides pressure to the brakes. The brakes are reliable and provide good stopping power. The bore/stroke of the engine is 3.375x3.50inches / 86x 89 mm. The starter volts are 6. The intake valve clearance is 0.012inches / 0.305 mm (hot), while the exhaust valve clearance is 0.012inches / 0.305 mm (hot). The sparkplug is AC45/Autolite A-7/Autolite A-9/Champion J-8.
Steering
The steering is manual and uses a worm and sector gear. The steering is responsive and easy to use. The description of the steering is Allis Chalmers 2.1L 4-cyl gasoline. The point gap is 0.020inches / 0.508 mm. The steering is reliable and provides good control of the tractor.
Common Problems
Users have reported issues with the chassis, which is 4x2 2WD. The manual steering can be difficult to use for some users. The differential mechanical contracting band brakes can wear out quickly if not maintained properly. The open operator station cab can be uncomfortable in extreme weather conditions. The 4-speed non-synchronized transmission can be difficult to use for some users.
What Users Like
Users appreciate the 5.00-15 front and 10-24 rear ag tires, which provide good traction in a variety of conditions. The tractor is easy to maintain and repair. The engine is reliable and provides good power. The steering is responsive and easy to use. The tractor is versatile and can be used for a variety of tasks.
Allis Chalmers CA Technical Specifications
Power | |
|---|---|
| Drawbar (claimed) | 18hp / 13.4kW |
| Pto (claimed) | 23hp / 17.2kW |
| Drawbar (tested) | 22.97hp / 17.1kW |
| Belt (tested) | 25.96hp / 19.4kW |
Engine Detail | |
| Description | Allis Chalmers gasoline 4-cylinder 8-valve liquid-cooled vertical I-head |
| Displacement | 125.2ci / 2.1L |
| Bore/stroke | 3.375x3.50inches / 86x 89 mm |
| Air Cleaner | oil bath |
| Compression | 6.25:1 |
| Rated Rpm | 1650 |
| Firing Order | 1-2-4-3 |
| Starter Volts | 6 |
| Coolant Capacity | 9 qts /8.5 L |
| Sparkplug | AC45/Autolite A-7/Autolite A-9/Champion J-8 |
| Sparkplug Gap | 0.030inches / 0.762 mm |
| Point Gap | 0.020inches / 0.508 mm |
| Intake Valve Clearance | 0.012inches / 0.305 mm (hot) |
| Exhaust Valve Clearance | 0.012inches / 0.305 mm (hot) |
Engine | |
| Description | Allis Chalmers 2.1L 4-cyl gasoline |
Transmission | |
| Type | non-synchronized |
| Gears | 4 forward and 1 reverse |
| Clutch | dry disc |
| Oil Capacity | 4 qts /3.8 L |
Mechanical | |
| Chassis | 4x2 2WD |
| Steering | manual |
| Brakes | differential mechanical contracting band |
| Cab | Open operator station |
| Transmission | 4-speed non-synchronized |
Tires | |
| Ag Front | 5.00-15 |
| Ag Rear | 10-24 |
Dimensions | |
| Wheelbase | 82inches / 208cm |
| Length | 125inches / 317cm |
| Height | 73inches / 185cm |
| Operating Weight | 2835lbs / 1285kg |
| Ballasted Weight | 5045lbs / 2288kg |
| Front Tread | 6.25/13inches / 15/33 cm |
| Rear Tread | 52 to 80inches / 132to 203 cm |
Dimensions And Tires | |
| Wheelbase | 82inches / 208cm |
| Weight | 2835lbs / 1285kg |
| Front Tire | 5.00-15 |
| Rear Tire | 10-24 |
Serial Numbers | |
| Location | On top of transmission, by shift lever |
| 1950 | 14 |
| 1951 | 322 |
| 1952 | 10539 |
| 1953 | 22181 |
| 1954 | 31424 |
| 1955 | 32907 |
| 1956 | 37203 |
| 1957 | 38618 |
| 1958 | 38977 |
| Final | 39513 |
Belt Pulley | |
| Diameter | 8 inches /20 cm |
| Width | 5.5inches / 13cm |
| Rpm | 1220 |
| Speed | 2555ft/min / 778.76 meters/min |
Capacity | |
| Fuel | 13gal / 49.2L |
| Hydraulic System | 2 gal /7.6 L |
Hydraulics | |
| Capacity | 2 gal /7.6 L |
| Pressure | 3200psi / 220.6bar |
Tractor Hitch | |
| Type | Allis Snap Coupler*Available after 1954. |
Electrical | |
| Ground | positive |
| Charging System | generator |
| Charging Amps | 10 |
| Battery Volts | 6 |
| Battery Ah | 95 |
Power Take Off Pto | |
| Rear Pto | live |
| Rear Rpm | 538 |