Ford Escort and Sierra RS Cosworth Workshop & Service Repair Manual
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🏷️ Basic Information Identification Make: Ford Model: Escort RS Cosworth, Sierra RS Cosworth 👋 Introduction Market Position Purpose: To empower owners to perform DIY servicing and repairs. Competitive Analysis Diy...
To empower owners to perform DIY servicing and repairs.
Competitive Analysis
Diy Benefits:
Cost savings, tool acquisition, satisfaction of fixing the vehicle.
Key Features
Content Highlight:
Focus on high-performance RS Cosworth variants, detailed technical information.
📋 Manual Details
Coverage Areas
Manual Type:
Workshop & Service Repair Manual
Language:
English
Format:
PDF Download
📖 Manual Coverage
Systems Covered
Engine Management:
RS Cosworth Engine Management Fault Finding
Chassis Escort:
RS Cosworth Escort Group A Supplement
Chassis Escort N:
RS Cosworth Escort Group N Supplement
Chassis Sierra:
RS Cosworth Sierra Technician Information
Fuel Injection Sierra:
RS Cosworth Sapphire Technical & Fuel Injection Diagnosis Information
General Workshop:
RS Cosworth Sierra and Escort Workshop Manual
Electrical Sierra:
RS Cosworth Sierra Wiring Diagram
Bodywork:
Includes information on body panels, aerodynamics, and interior trim specific to RS models.
Procedures Included
Repair Procedures:
Detailed instructions and step-by-step diagrams for all workshop procedures
Troubleshooting:
Fault finding for engine management systems
Engine Rebuild:
Detailed procedures for engine disassembly, inspection, and reassembly.
Suspension And Steering:
Repair and adjustment procedures for suspension components, steering rack, and power steering system.
Brake System Repair:
Instructions for brake caliper, disc, pad replacement, and hydraulic system maintenance.
Electrical System Diagnosis:
Troubleshooting and repair of the entire electrical system, including lighting, ignition, and ancillaries, aided by wiring diagrams.
Technical Depth
Depth:
Comprehensive service and repair information for DIY enthusiasts and professionals
📊 Manual Specifications
File Format
File Format:
PDF
Compatibility:
All Versions of Windows & Mac
Requirements:
Adobe PDF Reader
⚙️ Engine Specifications
Primary Engine
Engine Type:
Turbocharged, Intercooled, 4-Cylinder, Cosworth YB Series
Performance
Power Output:
Typically around 204-220 bhp (varies slightly by model and year)
Torque Output:
Approximately 200-210 lb-ft (varies slightly by model and year)
Fuel System
Induction:
Bosch L-Jetronic Fuel Injection (later models may have enhancements)
Turbocharger:
Garrett T3/T04E or similar turbocharger with intercooler
Engine Management
ECU:
Specific Cosworth engine management systems with detailed diagnostics covered.
Displacement
Displacement:
2.0 Liters (1998 cc)
Bore Stroke
Bore X Stroke:
87.6 mm x 86.0 mm
Compression Ratio
Compression Ratio:
8.0:1 (approximate, can vary slightly)
🔧 Transmission
Standard
Type:
5-speed Manual Transmission (e.g., MT75 for Sierra, MTX75 for Escort)
Optional
Availability:
Not typically offered with automatic transmissions in RS Cosworth variants.
Features
Drivetrain:
All-Wheel Drive (AWD) system with viscous coupling center differential and limited-slip rear differential.
Gear Ratios
Sierra Gear Ratios:
Manual includes detailed gear ratios for MT75 gearbox (e.g., 1st: 3.36, 2nd: 1.93, 3rd: 1.32, 4th: 1.00, 5th: 0.78)
Escort Gear Ratios:
Manual includes detailed gear ratios for MTX75 gearbox (e.g., 1st: 3.36, 2nd: 1.93, 3rd: 1.32, 4th: 1.00, 5th: 0.78)
📐 Dimensions
Exterior
Sierra Dimensions:
Length: approx. 4400-4500 mm, Width: approx. 1750 mm, Height: approx. 1350-1400 mm (varies by specific Sierra RS variant)
Escort Dimensions:
Length: approx. 4060 mm, Width: approx. 1720 mm, Height: approx. 1380 mm (varies by specific Escort RS variant)
Weights
Sierra Kerb Weight:
Approx. 1300-1400 kg (varies by specific Sierra RS variant)
Escort Kerb Weight:
Approx. 1200-1270 kg (varies by specific Escort RS variant)
🛡️ Safety Features
Ratings
Crash Safety:
While specific modern ratings are not directly applicable to the era, Ford's safety features of the time were incorporated. Manual covers safety-related maintenance.
Active Features
Braking:
Front: Ventilated Discs, Rear: Solid Discs. ABS (Anti-lock Braking System) typically fitted to RS models. Covered in manual.
Passive Features
Restraints:
Seatbelts, potentially driver's airbag in later models. Manual will detail relevant systems.
💡 Technology Features
Infotainment
Audio System:
Factory fitted radio/cassette players or CD players, often with amplifier systems. Manual covers electrical connections and basic troubleshooting.
Driver Assistance
ABS:
Anti-lock Braking System is a key safety technology covered in diagnostic sections.
Connectivity
Wiring Diagrams:
Comprehensive wiring diagrams for electrical systems are included, crucial for diagnostics and repairs.
🔧 Maintenance
Service Intervals
Oil Change:
Typically every 5,000 - 7,500 miles or annually. Manual will specify precise interval and oil type.
Spark Plugs:
Refer to manual for specific interval based on plug type (e.g., iridium, platinum).
Fluid Specifications
Engine Oil:
High-quality synthetic oil, e.g., 5W-30 or 10W-40 depending on climate and specific engine recommendations. Manual will list Ford specification (e.g., WSS-M2C...). Capacity approx. 4.7 liters.
Coolant:
Ethylene glycol-based antifreeze mixed with distilled water (50/50 ratio). Manual will specify Ford specification and capacity.
Brake Fluid:
DOT 4 or DOT 5.1 (refer to manual). Capacity approx. 0.75 liters.
Transmission Fluid:
Specific manual transmission fluid (MTF) as per manual, e.g., Ford ESP-M2C175-A or equivalent. Capacity approx. 1.6 liters.
Differential Fluid:
Refer to manual for specific LSD oil type and capacity. Typically gear oil with limited-slip additive.
Power Steering Fluid:
Ford specification power steering fluid. Manual will specify exact type and capacity.
Known Issues
Cylinder Head:
Potential for cylinder head gasket failure due to high heat and pressure. Manual provides diagnostic and repair steps.
Turbocharger:
Wear and tear on turbocharger bearings and seals. Manual assists with diagnosis and replacement.
Engine Management Sensors:
Failure of various sensors (e.g., MAP, MAF, Crankshaft Position) can affect performance. Manual provides fault-finding for these.
Cooling System:
Overheating issues can arise from radiator, thermostat, or fan problems. Manual covers these components.
📚 Vehicle History
Brand Heritage
Ford Motorsport:
Developed by Ford Motorsport (Ford Special Vehicle Operations - SVO) to homologate for Group A racing.
Model Evolution
Sierra Cosworth Intro:
Ford Sierra RS Cosworth launched in 1986.
Escort Cosworth Intro:
Ford Escort RS Cosworth launched in 1992.
Production
Sierra Cosworth Production:
Produced in three phases: RS Cosworth (1986-1987), RS500 (limited edition), and Sapphire RS Cosworth (1988-1992).
Escort Cosworth Production:
Produced from 1992 to 1996.
Racing Heritage
Group A Success:
Highly successful in Group A touring car racing across Europe and Australia.
🏆 Awards & Recognition
Recognitions
Performance Acclaim:
Widely recognized for its exceptional performance and rallying pedigree.
Motorsport Achievements:
Numerous victories in national and international touring car championships.
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