Target Audience:
Jeep CJ-2A owners, restoration specialists, mechanics, and automotive enthusiasts
Value Proposition:
Essential guide for maintaining and repairing one of America's most iconic civilian off-road vehicles
Manual Focus:
Practical, hands-on repair and maintenance guidance tailored for the CJ-2A
Historical Significance:
Covers a pivotal model that transitioned Jeep from a military necessity to a civilian utility and recreational vehicle
Engine And Powertrain:
Engine overhaul, tuning, lubrication, cooling, fuel system, exhaust system, clutch, gearbox, transfer case, driveline
Chassis And Suspension:
Frame, front axle, rear axle, springs, shock absorbers, steering system
Brakes:
Hydraulic brake system, master cylinder, wheel cylinders, brake shoes, drums, lines, parking brake
Electrical:
Ignition system, starting system, charging system (generator, regulator), lighting, gauges, wiring diagrams
Body And Interior:
Body panel repair, seats, dashboard, controls, doors, windows, canvas top (if applicable)
Maintenance:
Regular servicing, lubrication points, fluid changes, filter replacements, tune-up procedures
Repair And Overhaul:
Detailed step-by-step instructions for major component overhauls and repairs
Troubleshooting:
Diagnostic charts and procedures for identifying and resolving common problems
Specifications And Data:
Torque specifications, clearances, adjustments, timing settings
Depth Of Coverage:
Comprehensive, from basic maintenance to full engine and drivetrain rebuilds
Digital Quality:
High-resolution scans, often searchable text if OCR processed
Print Reproduction Quality:
Likely clear, legible reproductions of original diagrams and text
Physical Binding:
If printed: Staple-bound, perfect bound, or spiral-bound for ease of use
Physical Paper Quality:
If printed: Durable paper stock suitable for workshop environments
Engine Model:
Willys Hurricane F-Head Inline-4
Engine Displacement:
134 cubic inches (2.2 liters)
Bore X Stroke:
3.125 in x 4.375 in (79.4 mm x 111.1 mm)
Compression Ratio:
6.5:1 (typical)
Horsepower Rating:
60 hp @ 3200 RPM (approximate)
Torque Rating:
114 lb-ft @ 1600 RPM (approximate)
Carburetor:
Carter W-O (Single-barrel) or Willys MB Carburetor
Ignition Type:
Battery-Ignition (24V system often converted to 12V)
Cooling Type:
Water-cooled
Oil Type:
SAE 20W or 30W (depending on climate), potentially with ZDDP additive for flat tappets
Transmission Type:
Warner T-90 (3-speed manual)
Transfer Case:
Dana 18 (2-speed, part-time 4WD)
Gear Ratios Transmission:
1st: 2.56:1, 2nd: 1.55:1, 3rd: 1.00:1 (approximate)
Gear Ratios Transfer Case:
High: 1.00:1, Low: 2.46:1 (approximate)
Transmission Fluid Type:
GL-4 Gear Oil (e.g., SAE 80W-90 or 90W)
Transfer Case Fluid Type:
GL-4 Gear Oil (e.g., SAE 80W-90 or 90W)
Wheelbase:
80 inches (2032 mm)
Length:
130 inches (3302 mm)
Width:
62 inches (1575 mm)
Height:
Variable (due to body styles and tops, approx. 65 inches with basic top)
Curb Weight:
Approximately 2,100 - 2,300 lbs (950 - 1040 kg)
Gross Vehicle Weight Rating Gvw:
Approximately 3,250 lbs (1475 kg)
Payload Capacity:
Approximately 950 - 1150 lbs (430 - 520 kg)
Towing Capacity:
Approximately 1,000 - 1,500 lbs (450 - 680 kg)
Crash Test Ratings:
Not applicable (vehicles of this era were not subjected to modern crash testing standards)
Braking System:
Hydraulic drum brakes on all four wheels
Seatbelts:
Not standard; typically dealer or aftermarket installed
Rollover Protection:
Minimal; canvas top offers no structural protection. Roll bar often added by owners.
Radio Type:
Optional AM radio, often dealer or aftermarket installed. Basic dash layout.
Gauges:
Basic instrumentation: speedometer, fuel gauge, ammeter, oil pressure gauge, temperature gauge.
Driver Assistance Systems:
None (pre-dates modern driver assistance technologies)
Oil Change Interval:
Every 2,000-3,000 miles or 6 months (recommendation for the era)
Grease Points:
Frequent greasing required for U-joints, kingpins, tie rod ends, etc. (refer to manual for exact schedule)
Tune Up Frequency:
Every 6,000 miles or annually, including spark plugs, points, condenser, and carburetor adjustment
Engine Oil Capacity:
5 Quarts (4.7 Liters) with filter
Coolant Type:
Water or water/antifreeze mixture (50/50 typical)
Brake Fluid Type:
DOT 3 Hydraulic Brake Fluid (after conversion to modern seals if applicable)
Common Wear Items:
Kingpins, leaf springs, brake components, clutch wear, generator brush wear, exhaust manifold leaks
Engine Specifics:
Tendency for oil leaks, valve guide wear, and potential for overheating if cooling system is not meticulously maintained.
Drivetrain Specifics:
U-joint wear, potential for synchro ring wear in the transmission, and noisy transfer cases if not properly lubricated.
Jeep Lineage:
Direct descendant of the WWII Willys MB and Ford GPW military Jeeps
Cj Series Progression:
The CJ-2A was the first civilian Jeep, evolving from the military MB to meet civilian utility needs.
Key Distinctions From Mb:
Side-mounted spare tire, tailgate, civilian body styling, headlights mounted on the grille, PTO mounting provisions.
Production Years:
1945-1949
Manufacturing Location:
Toledo, Ohio, USA
Total Production Units:
Approximately 350,000 units (for CJ-2A and its immediate successors)
Cultural Impact:
Iconic status in automotive history, recognized for its durability and off-road capability, precursor to the modern SUV.
Restoration Community Rating:
Highly regarded within the classic and off-road communities.
