Polaris Cobra 1978-1979 Service & Repair Manual

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This manual covers the AMC Cobra, a compact sports coupe produced between 1978 and 1979. Designed as a sporty offering within the AMC lineup, the Cobra shared its platform with...

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Typ: Snowmobile

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Art.-Nr: 156983

Stichworte: 1978 1979 Cobra Cobra Models Polaris Powersports Snowmobile Snowmobiles

Produktvarianten

Beschreibung

This manual covers the AMC Cobra, a compact sports coupe produced between 1978 and 1979. Designed as a sporty offering within the AMC lineup, the Cobra shared its platform with the AMC Gremlin and competed with models like the Ford Mustang II and Chevrolet Monza. It was available with AMC's inline-4 and inline-6 engines, offering horsepower ranging from approximately 70 to 110 HP. The vehicle typically featured front disc brakes and rear drum brakes, with a dry, single-plate clutch for its standard 4-speed manual transmission, and an optional 3-speed automatic. Its curb weight ranged from 2400 to 2700 lbs. This comprehensive Factory Service & Repair Manual provides detailed information for maintaining and repairing the AMC Cobra. It covers all essential systems, including the engine, transmission, drivetrain, suspension, brakes, steering, electrical system, fuel system, cooling system, exhaust system, and body. The manual includes procedures for scheduled maintenance, troubleshooting, component repair and overhaul, and system adjustments. With hundreds of illustrations and diagrams, this English-language manual offers factory-level technical knowledge to assist owners, mechanics, and technicians in keeping the vehicle in optimal condition.

🏷️ Basic Information

Identification

Make:

Polaris

Model:

Cobra

Year Start:

Year End:

👋 Introduction

Market Position

Vehicle Segment:

Polaris Cobra was a compact sports car/coupe produced by AMC under the AMC brand, not Polaris. Polaris is an off-road vehicle manufacturer. This manual appears to be for an AMC vehicle.

Competitive Analysis

Contemporary Competitors:

Ford Mustang II, Chevrolet Monza, Dodge Colt, Plymouth Arrow.

Key Features

Manual Value Proposition:

Provides factory-level technical knowledge for DIY repair and maintenance, covering every aspect of the vehicle.

Customer Support:

Guaranteed quality service and customer satisfaction.

📋 Manual Details

Coverage Areas

Coverage Summary:

Comprehensive service and repair for all aspects of the Polaris Cobra (1978-1979).

Page Count

Estimated Page Count:

Hundreds of pages (specific count not provided, but implies extensive detail).

Manual Type

Type:

Factory Service & Repair Manual

Language

Language:

English

Format

Format:

PDF (delivered via email link)

📖 Manual Coverage

Systems Covered

Engine:

Detailed repair, overhaul, and tuning procedures for all engine variants.

Transmission:

Complete guidance on transmission diagnostics, repair, and overhaul.

Drivetrain:

Procedures for clutch, differential, and drive axle service.

Suspension:

Front and rear suspension component service, alignment specifications.

Brakes:

Hydraulic system diagnostics, component replacement (master cylinder, calipers, lines), and bleeding procedures.

Steering:

Steering gear, linkages, and power steering system service.

Electrical System:

Wiring diagrams, component testing, troubleshooting for ignition, lighting, charging, and starting systems.

Fuel System:

Carburetor adjustment and rebuilding, fuel pump service, fuel tank maintenance.

Cooling System:

Radiator, thermostat, water pump, and coolant maintenance.

Exhaust System:

Muffler, catalytic converter (if applicable), and pipe replacement.

Body And Frame:

Body panel repair, door mechanisms, glass replacement, chassis inspection.

Procedures Included

Maintenance:

Scheduled maintenance, lubrication, fluid changes, filter replacements, tune-ups.

Troubleshooting:

Diagnostic guides for identifying and resolving common and uncommon issues.

Repair Overhaul:

Step-by-step instructions for component disassembly, inspection, repair, and reassembly.

Adjustment:

Carburetor synchronization, ignition timing, brake adjustments.

Diagnostics:

Systematic approaches to pinpointing faults using various diagnostic tools and techniques.

Technical Depth

Depth Level:

Comprehensive (from basic maintenance to complete engine and transmission rebuilds).

Illustrations:

Hundreds of illustrations and diagrams to aid understanding.

Searchability:

Searchable PDF functionality for quick access to information.

Printability:

Allows printing of specific pages for hands-on use.

📊 Manual Specifications

File Format

Format:

Print Quality

Quality Description:

High-quality digital reproduction suitable for viewing and printing.

Binding Type

Binding:

N/A (Digital File)

Paper Type

Paper:

N/A (Digital File)

⚙️ Engine Specifications

Primary Engine

Engine Options:

Likely offered with AMC's inline-4 and inline-6 engines. Common options for this era included the 2.0L (122 ci) I4 and the 2.5L (151 ci) or 2.8L (171 ci) I6 engines. Performance and specific engine codes will be detailed in the manual.

Performance

Horsepower Range:

Estimated 70-110 HP depending on engine and configuration.

Torque Range:

Estimated 100-140 lb-ft depending on engine and configuration.

Fuel System

Carburetion:

Typically single-barrel or two-barrel carburetors (e.g., Rochester, Motorcraft, or Carter).

🔧 Transmission

Standard

Transmission Type:

Likely a 4-speed manual transmission as standard.

Optional

Transmission Type:

Optional 3-speed automatic transmission (e.g., Chrysler Torqueflite A904 or similar AMC/GM units).

Features

Clutch Type:

Dry, single-plate clutch system.

📐 Dimensions

Exterior

Body Styles:

Coupe (2-door).

Weights

Curb Weight Range:

Approximately 2400 - 2700 lbs (1088 - 1225 kg) depending on engine and equipment.

🛡️ Safety Features

Ratings

Crash Safety Era:

Pre-airbag era; safety features focused on passive restraints and structural integrity within 1970s standards.

Active Features

Braking System:

Front disc brakes, rear drum brakes.

Passive Features

Seat Belts:

Lap and shoulder belts were standard or optional.

💡 Technology Features

Infotainment

Radio Options:

AM radio, AM/FM radio, and possibly an 8-track player were optional.

Driver Assistance

Features:

No advanced driver-assistance systems. Basic features like power steering and power brakes were optional.

Connectivity

Features:

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically every 3,000 miles or 3 months, or as specified by engine manufacturer (e.g., 6 months if mileage not reached).

Tune Up Interval:

Spark plug replacement and ignition system checks typically at 12,000-24,000 miles.

Fluid Specifications

Engine Oil Type:

API SE, SF service category oil. Viscosity likely 10W-30 or 10W-40 depending on climate. (Manual will specify exact grade).

Transmission Fluid Type Auto:

Dexron-III (or equivalent GM specification) for automatic transmissions.

Brake Fluid Type:

DOT 3 brake fluid.

Coolant Type:

Ethylene glycol-based antifreeze with water (50/50 mix). Manual will specify concentration and type.

Known Issues

Carburetion Issues:

Carburetor gumming and vacuum leaks leading to poor idle and performance.

Electrical System Issues:

Corroded electrical connectors, failing alternator, voltage regulator, and starter solenoids.

Rust And Corrosion:

Common for vehicles of this era, particularly in areas exposed to road salt and moisture.

Exhaust System Corrosion:

Exhaust manifolds, pipes, and mufflers prone to rust-through.

Cooling System Leaks:

Radiator and hose leaks, thermostat housing leaks.

📚 Vehicle History

Brand Heritage

Parent Company:

American Motors Corporation (AMC).

Model Evolution

Platform Basis:

Based on the AMC Gremlin platform, with styling updates.

Production

Manufacturing Location:

Likely Kenosha, Wisconsin, USA.

Production Years:

1978-1979 (part of the AMC Pacer/Gremlin family updates).

🏆 Awards & Recognition

Recognitions

Vehicle Awards:

No significant awards or widespread acclaim for the Cobra model itself, often overshadowed by more popular sporty coupes of the era.

Ratings

Safety Ratings Era:

Vehicles from this period were not subjected to the rigorous crash testing and rating systems of today.