Engine:
Comprehensive coverage including troubleshooting, repair, and overhaul of engine components.
Fuel System:
Detailed procedures for carburetor adjustment, fuel pump service, and fuel line maintenance.
Cooling System:
Information on radiator, water pump, thermostat, and coolant maintenance.
Electrical System:
Includes wiring diagrams, battery service, ignition system troubleshooting, and starter/generator repair.
Chassis:
Covers steering, front axle, rear axle, and hitch mechanisms.
Service Information:
General service data, specifications, and troubleshooting guides.
Emission Control Information:
Details relevant to emission control systems as applicable to the Model CA.
Power Director:
Specific instructions for the maintenance and repair of the Power Director unit.
Power Takeoff Pto:
Service information for the rear PTO and belt pulley systems.
Periodic Maintenance:
Schedule for routine checks, lubrication, and filter replacement.
Engine Repair:
Step-by-step instructions for engine disassembly, assembly, and component replacement (e.g., pistons, rings, bearings).
Transmission Repair:
Procedures for clutch service, gear shifting mechanisms, and differential maintenance.
Brake System Repair:
Guidance on brake adjustment and component replacement.
Hydraulic System Repair:
Information on the hydraulic lift system, pumps, and control mechanisms.
Troubleshooting:
Diagnostic procedures for common and uncommon issues across all systems.
Rebuilding Procedures:
Comprehensive guidance for complete overhauls of major tractor components.
Ignition System Service:
Timing adjustments, spark plug replacement, coil and distributor service.
Frontend And Steering Repair:
Service for steering gears, tie rods, and front wheel bearings.
Rear Axle And Differential Service:
Maintenance and repair of the rear axle housing, differential, and final drives.
Depth Of Coverage:
Complete disassembly to component level, repair, and reassembly instructions.
User Target Audience:
Suitable for both DIY enthusiasts and experienced mechanics.
Visual Aids:
Hundreds of photos and illustrations to guide repairs.
Diagnostic Tools Required:
Basic hand tools, torque wrench, feeler gauges, and potentially a timing light.
Engine Type:
Allis-Chalmers D-151, 4-cylinder, gasoline (also available in LPG and diesel configurations for export).
Bore X Stroke:
3.75 in x 4.38 in (95.25 mm x 111.25 mm)
Displacement:
151.1 cu in (2.48 L)
Horsepower Drawbar:
Approx. 27 HP (This is a typical range, actual HP varies)
Horsepower Belt:
Approx. 32 HP (This is a typical range, actual HP varies)
Compression Ratio:
Approx. 6.4:1 (Gasoline)
Carburetor:
Marvel-Schebler TSX (model number varies depending on specific configuration).
Fuel Type:
Gasoline (standard US models)
Cooling Method:
Water-cooled, pressurized system.
Wheelbase:
Approx. 82 inches (2083 mm)
Length:
Approx. 130 inches (3302 mm) with standard drawbar.
Width:
Approx. 70 inches (1778 mm) at rear wheels, adjustable tread.
Shipping Weight:
Approx. 3,800 lbs (1724 kg)
Operating Weight:
Approx. 4,200 - 4,500 lbs (1905 - 2041 kg) with fluids and standard equipment.
Engine Oil Change:
Every 50 operating hours or annually (refer to manual for exact specification).
Transmission Oil Change:
Refer to manual for recommended intervals, typically annually or after extensive use.
Engine Oil Type:
SAE 30 or 10W-30 heavy-duty engine oil (check manual for specific viscosity based on temperature).
Transmission Hydraulic Fluid:
API GL-4 Gear Oil (e.g., 80W-90) or Allis-Chalmers hydraulic fluid.
Coolant:
Ethylene glycol antifreeze mixture with water (50/50 ratio recommended).
Common Wear Items:
Carburetor flooding, worn clutch components, hydraulic pump wear, exhaust manifold leaks.
Electrical Issues:
Voltage regulator, generator output, and starter motor reliability can be points of concern due to age.
Engine Problems:
Carbon buildup, valve seat wear, and piston ring seal issues.
Lubrication System Wear:
Checking and maintaining oil pressure, oil filter replacement.
Allishalmers Legacy:
Allis-Chalmers was a prominent American manufacturer of farm machinery, construction equipment, and power generation equipment, known for innovation and quality.
Predecessor:
Succeeded the Allis-Chalmers Model B and was a step up in power and features.
Successor:
Was replaced by the Allis-Chalmers D-Series tractors, starting with the D-17.
Production Years:
1948 - 1957
Manufacturing Location:
West Allis, Wisconsin, USA
