Jeep CJ-3B 1968 Workshop Service Repair Manual

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🏷️ Basic Information Identification Make: Jeep Model: CJ-3B Year: 1968 Codes Vehicle Code: CJ3B 👋 Introduction Market Position Vehicle Segment: Light utility vehicle, off-road vehicle Target Audience: Off-road enthusiasts, collectors,...

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标签: 1968 Car Cars CJ-3B Jeep Misc

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Description

🏷️ Basic Information

Identification

Make:

Model:

CJ-3B

Year:

Codes

Vehicle Code:

👋 Introduction

Market Position

Vehicle Segment:

Light utility vehicle, off-road vehicle

Target Audience:

Off-road enthusiasts, collectors, restorers, agricultural users

Competitive Analysis

Key Competitors Era:

Willys CJ-5, Land Rover Series, International Harvester Scout

Key Features

Vehicle Durability:

Renowned for ruggedness and off-road capability

Simplicity:

Mechanical simplicity facilitates maintenance and repair

Off Road Performance:

Go-anywhere capability with robust 4WD system

Manual Utility:

Provides essential knowledge for maintaining and repairing a classic Jeep

📋 Manual Details

Coverage Areas

Engine:

Willys Hurricane F-Head Inline-4

Transmission:

T90 3-speed manual

Drivetrain:

4WD (Selectable 4x4)

Page Count

Estimated Pages:

Manual Type

Type:

Workshop Service Repair Manual

Language

Language:

English

Format

Format:

Downloadable PDF

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Complete overhaul, assembly, disassembly, troubleshooting

Cooling System:

Radiator, water pump, thermostat, hoses, fan

Fuel System:

Carburetor (likely Carter WCFB or similar), fuel pump, fuel lines, tank

Ignition System:

Distributor, coil, spark plugs, wiring

Lubrication System:

Oil pump, oil filter, oil pan, lubrication points

Exhaust System:

Exhaust manifold, pipes, muffler

Transmission Manual:

T90: Disassembly, assembly, overhaul, clutch

Transfer Case:

2-speed transfer case: disassembly, assembly, lubrication

Front Axle:

Girling-type drum brakes, kingpins, knuckles, hubs, differential

Rear Axle:

Full-floating axle, differential, axle shafts, brakes

Suspension Front:

Leaf springs, shock absorbers, steering linkage

Suspension Rear:

Leaf springs, shock absorbers

Steering System:

Steering gearbox, drag link, tie rods, steering column

Braking System:

Hydraulic drum brakes (front and rear), master cylinder, wheel cylinders, brake lines

Electrical System:

12-volt system, generator/alternator, battery, starter, lighting, wiring diagrams

Body And Frame:

Frame inspection and repair, body panel removal and installation, doors, hood, windshield

Chassis Components:

U-joints, driveshafts, universal joints

Procedures Included

Maintenance:

Lubrication, fluid changes, filter replacement, tune-ups

Troubleshooting:

Diagnostic charts, common problems and solutions

Repair:

Component-specific repair instructions for all major systems

Overhaul:

Complete engine, transmission, and axle rebuild procedures

Diagnostics:

Identification of symptoms, measurement of parameters, root cause analysis

Wiring Diagrams:

Detailed electrical schematics for all circuits

Technical Depth

Depth:

Comprehensive factory-level detail, suitable for professional mechanics and serious enthusiasts

Accuracy:

Official factory specifications and procedures

Illustrations:

Includes diagrams, schematics, and photographic examples where applicable

📊 Manual Specifications

File Format

Format:

Searchability:

Likely text-searchable PDF for quick information retrieval

Print Quality

Print Readability:

High-resolution, suitable for printing individual pages or the entire manual

Binding Type

Binding Recommendation:

Professional binding recommended for printed versions for durability

Paper Type

Paper Recommendation:

Standard printer paper for personal use, heavier stock for shop use

⚙️ Engine Specifications

Primary Engine

Engine Name:

Willys Hurricane (F-Head)

Engine Type:

Inline-4 Cylinder, Overhead Valve (OHV)

Displacement:

134.2 cu in (2.2 L)

Performance

Horsepower:

75 hp @ 4000 rpm (approx.)

Torque:

114 lb-ft @ 1600 rpm (approx.)

Fuel System

Carburetor:

Single-barrel (e.g., Carter WCFB, or equivalent)

Fuel Type:

Unleaded gasoline

Engine Oil

Oil Type Recommendation:

API Service SG or higher, viscosity SAE 10W-30 or 10W-40 (check manual for precise specification)

Cooling System

Coolant Type:

Ethylene glycol based coolant (50/50 mix with distilled water)

🔧 Transmission

Standard

Transmission Type:

Warner Gear T90

Gears:

3-speed manual

Features

Clutch:

Single dry plate diaphragm spring clutch

Fluid Type

Transmission Fluid:

GL-4 Gear Oil (SAE 80W or 90W)

Transfer Case

Transfer Case Type:

2-speed, part-time 4WD

Transfer Case Fluid:

GL-4 Gear Oil (SAE 80W or 90W)

📐 Dimensions

Exterior

Wheelbase:

81 inches (2057 mm)

Length:

130.4 inches (3312 mm) (typical)

Width:

65.5 inches (1664 mm)

Height:

71.5 inches (1816 mm) (with soft top, typical)

Weights

Curb Weight:

Approx. 2,350 - 2,600 lbs (1066 - 1180 kg)

Gross Vehicle Weight Rating:

3,500 lbs (1588 kg)

Wheels And Tires

Bolt Pattern:

5 x 5.5 inches (139.7 mm)

Standard Tire Size:

6.00-16 or 6.50-16 Bias Ply (various brands)

🛡️ Safety Features

Ratings

NHTSA Ratings:

Not applicable to this era of vehicle

Active Features

Braking System:

Hydraulic drum brakes front and rear

Passive Features

Seat Belts:

Typically lap belts were standard or optional, shoulder belts were rare

Roll Cage:

Basic windshield frame and roll bar provide minimal rollover protection

💡 Technology Features

Infotainment

Radio:

Optional AM radio, often aftermarket units installed

Gauges:

Basic dashboard: speedometer, fuel gauge, temperature gauge, oil pressure light

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,000 miles or 6 months (typical for this era, consult manual)

Grease Points:

Weekly or every few hundred miles (as per manual, multiple chassis lube points)

Transmission Service:

Check fluid level monthly, change every 20,000-30,000 miles

Axle Lubricant Change:

Every 20,000 miles or as specified in manual

Tune Up Interval:

Every 10,000-12,000 miles (includes spark plugs, points, timing)

Fluid Specifications

Engine Oil Capacity:

5 quarts (4.7 Liters) with filter

Cooling System Capacity:

Approx. 12 quarts (11.4 Liters)

Transmission Capacity:

Approx. 4 pints (1.9 Liters)

Transfer Case Capacity:

Approx. 3 pints (1.4 Liters)

Front Axle Capacity:

Approx. 3 pints (1.4 Liters)

Rear Axle Capacity:

Approx. 4 pints (1.9 Liters)

Known Issues

Engine Wear:

Valve seat wear (especially exhaust), piston ring wear, oil leaks

Carburetor Issues:

Age-related deterioration, fuel delivery issues, tuning instability

Brake System:

Drum brake adjustment, seal deterioration, hard lines corrosion

Rear Main Seal:

Common leak point on many older Jeeps

Electrical System:

Fraying wires, corroded connections, generator output issues

Frame Rust:

Susceptible to rust in common areas, especially near wheels and body mounts

📚 Vehicle History

Brand Heritage

Jeep Origin:

Roots in military vehicles, particularly World War II Jeep MB

Model Evolution

Cj Lineage:

Direct descendant of the original Willys CJ series, evolving from CJ-2A and CJ-3A

Cj 3B Distinction:

Introduced in 1953, distinguished by its taller hood to accommodate the larger Hurricane F-Head engine

Production

Production Period:

1953-1968 (for CJ-3B)

Manufacturer:

Willys-Overland (later Willys Motors, Inc.)

Significance

Military To Civilian:

Pivotal in establishing the Jeep brand in the civilian and utility vehicle market

🏆 Awards & Recognition

Recognitions

Iconic Status:

Considered a highly iconic and capable off-road vehicle

Collector Status:

Highly sought after by collectors and enthusiasts for restoration and off-roading

Ratings

Off Road Capability:

Consistently rated highly for its off-road prowess and durability