Vehicle Segment:
Light utility vehicle, iconic off-road SUV.
Target Audience Manual:
Jeep CJ-3B owners, mechanics, restorers, and automotive enthusiasts seeking in-depth repair and maintenance information.
Competitors Era:
Willys CJ-3B's primary competitors were other utilitarian vehicles and early SUVs, though few matched its off-road prowess and ruggedness.
Defining Characteristics:
Go-anywhere capability, utilitarian design, rugged chassis, and iconic Jeep grille.
Manual Value Proposition:
Provides the essential technical knowledge for maintaining and repairing the legendary CJ-3B, ensuring longevity and optimal performance for owners.
Engine:
Detailed repair, overhaul, troubleshooting, and specifications for the Hurricane F-Head 4-cylinder engine.
Transmission:
Service and repair procedures for the T-90 3-speed manual transmission and Dana 18/20 transfer case.
Drivetrain:
Front and rear axle service (Dana 25/27/30), driveshafts, U-joints, and differential adjustments.
Brakes:
Hydraulic drum brake system maintenance, overhaul, bleeding, and specifications.
Steering:
Steering gear box (Ross) service, linkage adjustment, and troubleshooting.
Suspension:
Front and rear leaf spring service, shock absorber replacement, and chassis lubrication.
Electrical:
Wiring diagrams, lighting system service, ignition system (distributor, coil, spark plugs), starting and charging systems (generator, starter, battery).
Fuel System:
Carburetor (likely Carter W-0 or similar) service and adjustment, fuel pump, fuel tank, and lines.
Cooling System:
Radiator, water pump, thermostat, and fan service.
Exhaust System:
Exhaust manifold, pipe, and muffler service.
Body And Chassis:
Body panel removal and installation, seat service, frame inspection and repair, and hardware specifications.
Maintenance:
Routine maintenance tasks such as oil changes, filter replacements, lubrication, tune-ups, and brake adjustments.
Troubleshooting:
Diagnostic charts and procedures for identifying and resolving common mechanical and electrical issues.
Repair:
Step-by-step instructions for disassembling, inspecting, repairing, and reassembling all major vehicle components.
Overhaul:
Comprehensive instructions for complete engine, transmission, and axle rebuilds.
Specifications:
Torque values, clearances, fluid capacities, timing settings, and other critical technical data.
Depth:
Comprehensive, covering everything from basic adjustments to full engine and drivetrain rebuilds, as expected from a professional workshop manual.
File Type:
Likely PDF for digital versions. If printed, it would be a bound book.
Searchability:
If a well-scanned PDF, text should be searchable for quick access to information.
Print Quality Digital:
Depends on the original source and scanning quality. Aim for clear, legible text and diagrams.
Binding Type Physical:
Typically perfect bound or spiral bound for workshop manuals for ease of use on a workbench.
Paper Type Physical:
Durable, often semi-gloss paper to withstand shop environments.
Engine Code:
Hurricane F-Head
Engine Type:
Inline 4-cylinder, Overhead Valve (OHV), F-Head configuration
Displacement:
134.2 cubic inches (2.2 Liters)
Bore X Stroke:
3-1/8 inches x 4-1/4 inches (79.4 mm x 108 mm)
Horsepower:
Approximately 72 hp @ 3200 RPM
Torque:
Approximately 114 lb-ft @ 1200 RPM
Fuel Delivery:
Single barrel carburetor (typically Carter W-0 or Zenith Stromberg)
Fuel Type:
Regular Unleaded Gasoline
Ignition Type:
Battery and Coil Ignition System
Oil Capacity:
5 US quarts (4.7 Liters) with filter change
Coolant Capacity:
Approximately 10 quarts (9.5 Liters) (water/antifreeze mixture)
Transmission Model:
Warner T-90
Gears:
3-speed manual transmission
Transfer Case Model:
Dana 18 (or Dana 20 on later models)
Transfer Case Features:
2-speed, part-time four-wheel drive with selectable 2WD/4WD
Transmission Fluid Type:
GL-4 Gear Oil (e.g., SAE 90W)
Transfer Case Fluid Capacity:
Approximately 2.5 pints (1.2 Liters)
Wheelbase:
80 inches (2032 mm)
Overall Length:
Approximately 130 inches (3302 mm)
Overall Width:
Approximately 64 inches (1626 mm)
Overall Height:
Approximately 65 inches (1651 mm) (to windshield top)
Curb Weight:
Approximately 2,500 - 2,800 lbs (1134 - 1270 kg)
Gross Vehicle Weight Rating:
Approximately 3,500 - 4,000 lbs (1588 - 1814 kg)
Oil Change Interval:
Every 3,000 miles or 6 months (typical for the era, consult manual for specifics).
Tune Up Interval:
Recommended at 10,000-15,000 miles for points, plugs, and ignition timing.
Grease Points:
Requires regular lubrication of chassis grease points (e.g., king pins, tie rod ends, U-joints) every oil change or 1,000 miles.
Engine Oil Type:
SAE 10W-30 or 10W-40 (straight weight oils like SAE 30 were also common; consult manual for best practice).
Coolant Type:
50/50 mix of ethylene glycol antifreeze and water.
Brake Fluid Type:
DOT 3 Hydraulic Brake Fluid.
Common Wear Items:
Clutch components, king pins, steering box wear, generator output, and potential rust issues (especially floor pans and body mounts).
Engine Specific Concerns:
Overheating if cooling system is not maintained, potential for oil leaks from seals and gaskets.
Parts Outlook:
Many common wear parts are still available from Jeep specialists, but some specific components may require sourcing from vintage suppliers or rebuilding.
Jeep Legacy:
Descended from the World War II Willys MB, representing decades of off-road leadership.
Cj Lineage:
The CJ-3B replaced the CJ-3A, introducing the higher hoodline to accommodate the larger Hurricane engine. It was produced by Willys-Overland and later by Kaiser Jeep.
Distinguishing Features:
The CJ-3B is recognizable by its prominent raised hood, designed to clear the taller F-head engine. It also featured a larger windshield frame than its predecessor.
Production Period:
1953-1968
Manufacturing Locations:
Toledo, Ohio, USA
