Datsun 810 1979 WSM Service Manual Repair

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🏷️ Basic Information Identification Make: Datsun Model: 810 Year: 1979 Codes Chassis Code: A810 👋 Introduction Market Position Segment: Mid-size sedan, available as wagon and coupe Target Audience: Families, individuals...

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Type: Car

Vendor:

Sku: 457259

Tags: 1979 810 Car Datsun

Product variants

Description

🏷️ Basic Information

Identification

Make:

Datsun

Model:

Year:

Codes

Chassis Code:

👋 Introduction

Market Position

Segment:

Mid-size sedan, available as wagon and coupe

Target Audience:

Families, individuals seeking reliable and economical transportation

Competitive Analysis

Competitors:

Toyota Corona, Datsun Bluebird (smaller), Nissan Maxima (later), Ford Fairmont, Chevrolet Malibu, Plymouth Volare

Key Features

Reliability:

Known for robust engineering and durability

Value:

Offered a good balance of features and price

Emissions Control:

Early adopter of emissions control technology (NAPS-Z system)

📋 Manual Details

Coverage Areas

Primary Coverage:

Full Service and Repair Manual

Secondary Coverage:

Troubleshooting, Diagnostics, Maintenance, Specifications

Page Count

Estimated Page Count:

Approximately 800-1000 pages (typical for WSM of this era)

Manual Type

Type:

Factory Service Manual (WSM)

Language

Language:

English

Format

Format:

Digital Download (likely PDF)

📖 Manual Coverage

Systems Covered

Engine:

L20B inline-6, Z22 inline-4 (including troubleshooting, disassembly, assembly, specifications)

Fuel System:

Carburetor (Hitachi, Mikuni), fuel pump, fuel lines, emissions control systems (NAPS-Z)

Ignition System:

Distributor, ignition coil, spark plugs, timing adjustments, electronic ignition components

Cooling System:

Radiator, water pump, thermostat, hoses, fan, coolant specifications

Lubrication System:

Oil pump, oil filter, oil pan, oil specifications and capacities

Transmission:

4-speed Manual, 3-speed Automatic (RM3F, RL3F), clutch operation, transmission disassembly, assembly, fluid specifications

Drivetrain:

Rear-wheel drive, driveshaft, differential, axle shafts, universal joints

Suspension:

Front independent suspension (struts, control arms), rear leaf spring solid axle, shock absorbers, bushings, alignment specifications

Steering:

Recirculating ball steering gear, steering column, power steering system (if equipped), tie rod ends, specifications

Brakes:

Front disc brakes, rear drum brakes, brake master cylinder, brake lines, calipers, wheel cylinders, parking brake, brake fluid specifications

Electrical System:

12V system, battery, alternator, starter motor, wiring diagrams, fuses, relays, lighting system, horn

Body:

Body panel removal/installation, doors, hood, trunk, glass, seals, exterior trim

Interior:

Dashboard, seats, upholstery, headliner, interior trim panels

HVAC:

Heating system, ventilation, air conditioning (if equipped), blower motor, heater core, A/C components

Diagnostics:

Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (if applicable)

Procedures Included

Maintenance:

Scheduled maintenance, fluid changes, filter replacements, lubrication points, tune-up procedures

Repair:

Engine overhaul, transmission rebuild, brake service, suspension component replacement, electrical component repair

Troubleshooting:

Step-by-step diagnostic procedures for common problems

Disassembly Assembly:

Detailed instructions for removing and reinstalling major components and sub-assemblies

Specifications:

Torque specifications, clearances, tolerances, fluid capacities, electrical resistance values

Wiring Diagrams:

Comprehensive electrical schematics for various vehicle systems

Technical Depth

Depth:

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

Diagnostic Tools:

Covers use of common hand tools, measurement tools, and basic diagnostic equipment

📊 Manual Specifications

File Format

Format:

PDF (Searchable text, printable pages)

Print Quality

Quality:

High-resolution scans for clear diagrams and text

Binding Type

Binding:

N/A (Digital Download)

Paper Type

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Primary Engine

Engine Code 1:

Engine Type 1:

Inline-6, SOHC

Displacement 1:

2.0 Liters (1998 cc)

Bore X Stroke 1:

78.0 mm x 69.7 mm

Compression Ratio 1:

8.3:1 (typical)

Horsepower 1:

Approx. 97-105 hp @ 5200 rpm (varies by emissions control and market)

Torque 1:

Approx. 110-115 lb-ft @ 3200 rpm (varies)

Secondary Engine

Engine Code 2:

Engine Type 2:

Inline-4, OHV

Displacement 2:

2.2 Liters (2199 cc)

Horsepower 2:

Approx. 90-100 hp @ 4800-5200 rpm

Torque 2:

Approx. 120-130 lb-ft @ 2800-3200 rpm

Fuel System

Carburetor Type:

Hitachi DC4-59, Mikuni (various models depending on engine and emissions)

Fuel Requirement:

Unleaded Regular Gasoline (87 AKI)

Emissions

System:

NAPS-Z (Nissan Anti-Pollution System - Second Generation)

🔧 Transmission

Standard

Type Manual:

4-speed Manual (RM4F1)

Optional

Type Automatic:

3-speed Automatic (RL3F01A)

Features

Clutch Type:

Dry, single plate, hydraulically operated

Fluid Type Manual:

API GL-4 SAE 90 Gear Oil (e.g., Nissan Genuine Gear Oil)

Fluid Capacity Manual:

Approx. 2.0-2.5 Liters

Fluid Type Automatic:

Dexron II Automatic Transmission Fluid (ATF)

Fluid Capacity Automatic:

Approx. 5.0-6.0 Liters (total fill)

📐 Dimensions

Exterior

Wheelbase:

Approx. 2650 mm (104.3 inches)

Length:

Approx. 4555 mm (179.3 inches)

Width:

Approx. 1680 mm (66.1 inches)

Height:

Approx. 1390 mm (54.7 inches)

Weights

Curb Weight:

Approx. 1250-1350 kg (2755-2976 lbs) depending on body style and equipment

Gross Vehicle Weight Rating:

Typically around 1700-1800 kg (3748-3968 lbs)

Wheels Tires

Wheel Size:

14 inch or 15 inch alloy or steel wheels

Tire Size:

175/70R14, 185/70R14, 195/70SR14 (examples)

Bolt Pattern:

4x114.3 mm (4x4.5 inch)

🛡️ Safety Features

Ratings

NHTSA Rating:

Not rated under modern NHTSA standards

Active Features

Brakes:

Front disc, Rear drum; Dual-circuit hydraulic system

Passive Features

Seatbelts:

Lap and shoulder belts (front), lap belts (rear)

Structure:

Reinforced body structure for the era

💡 Technology Features

Infotainment

Audio:

AM/FM Radio, possibly with 8-track or cassette player options depending on trim.

Driver Assistance

Features:

Basic driver aids of the era: power steering (optional), power brakes (optional).

Connectivity

Features:

N/A (No modern connectivity features)

🔧 Maintenance

Service Intervals

Oil Change:

Every 3,000 miles or 6 months (typical for the era)

Oil Filter Replacement:

With every oil change

Air Filter Replacement:

Every 15,000 miles or 12 months

Spark Plug Replacement:

Every 20,000-30,000 miles

Fuel Filter Replacement:

Every 20,000-30,000 miles

Transmission Fluid Change Automatic:

Every 30,000 miles or 24 months

Transmission Fluid Change Manual:

Every 50,000 miles or 48 months

Coolant Flush:

Every 2 years or 30,000 miles

Fluid Specifications

Engine Oil:

API SF, SAE 10W-30 or 10W-40 (check manual for specific viscosity based on temperature)

Brake Fluid:

DOT 3 or DOT 4 Hydraulic Brake Fluid

Coolant:

Ethylene Glycol based antifreeze/coolant (50/50 mix with distilled water)

Known Issues

Rust:

Common on body panels, wheel arches, and undercarriage due to age and materials of the era.

Carburetor Issues:

Can become gummed up, leading to rough idle or poor running conditions, requiring cleaning or rebuilding.

Electrical Gremlins:

Aging wiring harnesses and connectors can lead to intermittent issues, particularly with lighting and ignition.

Exhaust Manifold Cracks:

Some L20B engines were prone to exhaust manifold cracking due to thermal cycling.

Suspension Wear:

Worn ball joints, tie rod ends, and bushings are common wear items.

📚 Vehicle History

Brand Heritage

Manufacturer:

Nissan Motor Corporation

Datsun Transition:

The 1979 model year falls within the period where Datsun branding was still prevalent before the full transition to Nissan globally in the 1980s.

Model Evolution

Generation:

Second generation Datsun 810 (H810)

Predecessor:

Datsun 810 (510 series, first generation)

Successor:

Nissan Maxima (starting with the J30 generation in 1981, the 810 effectively became the Maxima)

Production

Production Years:

1977-1981 (for the H810 generation)

Manufacturing Locations:

Japan (primarily)

🏆 Awards & Recognition

Recognitions

General Reputation:

The Datsun 810, and its successor the Maxima, were generally well-regarded for their reliability and value in the North American market.