Engine:
Complete overhaul, troubleshooting, component testing, specifications
Fuel System:
Carburetor overhaul, fuel pump, fuel lines, tank maintenance
Ignition System:
Magneto, spark plugs, wiring
Cooling System:
Radiator, water pump, thermostat, fan
Lubrication System:
Oil pump, oil filter, oil passages
Transmission:
Gearbox overhaul, clutch, PTO (Power Take-Off)
Final Drive:
Rear axle, differential, drive gears
Braking System:
Brake pedal, brake bands, linkage adjustment
Steering System:
Steering box, tie rods, linkages
Hydraulic System:
Tractor's hydraulic lift (if equipped), pump, cylinders, control valves
Electrical System:
Wiring diagrams, starter, generator/alternator (if applicable), battery, lighting
Front Axle:
Kingpins, spindles, steering knuckle maintenance
Rear Axle Housing:
Differential housing inspection and repair
Chassis Frame:
Frame inspection and repair
Bodywork:
Fenders, hood, seat assembly, operator controls
Maintenance:
Routine checks, lubrication, filter replacement, fluid changes
Troubleshooting:
Diagnostic charts for common problems, symptom-based solutions
Repair:
Step-by-step instructions for component disassembly, repair, and reassembly
Overhaul:
Complete engine, transmission, and component rebuild procedures
Adjustment:
Carburetor settings, clutch engagement, brake band tension, valve lash
Installation:
Installation guides for common attachments and replacement parts
Depth Level:
Comprehensive (from basic maintenance to full rebuilds)
Diagnostic Tools:
Specifications for essential diagnostic tools and measurements
Torque Specifications:
Detailed torque values for all critical fasteners
Clearances:
Precise tolerances for engine components, bearings, and linkages
Diagrams:
Illustrations, exploded views, and wiring diagrams
Engine Manufacturer:
Allis-Chalmers
Engine Type:
Inline 4-cylinder, gasoline (primarily)
Displacement:
201.0 cubic inches (3.3 L)
Bore:
3.75 inches (95.25 mm)
Stroke:
4.50 inches (114.3 mm)
Compression Ratio:
Approximately 6.0:1 to 6.5:1 (varies by fuel type and tuning)
Horsepower Rated:
Approximately 34.8 belt horsepower, 29.4 drawbar horsepower (rated at typical operating RPM)
Carburetor Type:
Stromberg BX series or Zenith (model dependent)
Fuel Type:
Gasoline (standard), some models adaptable to kerosene or LP gas
Oil Change Interval:
Every 50 hours of operation or annually, whichever comes first (typical for the era)
Grease Points:
Daily or weekly lubrication of various pivot points, kingpins, and linkages
Engine Oil Type:
SAE 30 or SAE 10W-30 (depending on climate and oil additive availability at the time; modern interpretation may use API CD or CI-4 for older diesel engines if applicable, but Model C is gasoline)
Transmission Oil Type:
SAE 80W-90 Gear Lube or SAE 90 Gear Lube
Hydraulic Fluid Type:
Refer to manual for specific recommendations; typically a non-detergent hydraulic oil or tractor hydraulic fluid
Common Wear Items:
Clutch wear, brake band adjustment, magneto service, carburetor gumming, starter motor reliability
Cooling System Prone To:
Scale buildup in radiator, leaks at hose connections
Ignition Maintenance:
Regular magneto servicing (cleaning, timing adjustment), spark plug replacement
Brand Origin:
American agricultural machinery manufacturer, founded in 1847
Production Period:
Introduced in 1942, produced through 1952
Manufacturing Location:
West Allis, Wisconsin, USA
Key Innovations:
One of Allis-Chalmers' first tractors designed with a focus on affordability and versatility for smaller farms. Featured 'Power Crater' pistons for improved combustion.
