Porsche 944 Turbo Workshop Manual | Engine, Transmission, Turbocharger & Electrical Systems

🔧 Complete Workshop Reference

This Porsche 944 Turbo Workshop Manual provides professional guidance for service, repair, and maintenance of the 944 Turbo series. It is an indispensable resource for mechanics, technicians, and Porsche enthusiasts working on the vehicle.

⚙️ Technical Coverage

The manual contains detailed specifications, torque settings, wear limits, and service instructions. Sections include:

• Engine & Crankcase – Pistons, cylinder head, lubrication, timing, and balance shaft system

• Turbocharger – Disassembly, installation, pressure testing, and cooling system

• Fuel System – Injection, pump delivery rate checks, and fuel line routing

• Transmission & Clutch – 5-speed gearbox, differential, torque settings, and operation

• Chassis & Suspension – Front/rear suspension, steering adjustments, and brake service

• Body & Equipment – Doors, bumpers, seats, lighting, windows, and interior components

• Electrical Components – Ignition, wiring diagrams, DME/K-Jetronic troubleshooting

📊 Technical Data

• Engine type: M44/51 – 2.5L turbocharged inline-4

• Power: 220 HP (series) / 250 HP (Turbo S special model)

• Torque: 330 Nm / 350 Nm

• Compression ratio: 8.0:1

• Top speed: 245–260 km/h

• Acceleration (0–100 km/h): 6.3s (Turbo) / 5.7s (Turbo S)

• Cooling: Closed water system with intercooler

• Fuel: Unleaded, RON 95–96

📂 File Details

• Format: PDF (text recognized, OCR processed)

• Pages: ~337+ (complete content, fully searchable)

• Size: ~182 MB

• Language: English

• Edition: Printed in Germany, 1991 (with Turbo S updates 1988–1991)

📑 Table of Contents

• General

  • Technical Data

  • Cylinder designations

  • 944 Turbo “S” special model (M758)

  • Lifting vehicle

• Engine / Crankcase

  • Tolerances and wear limits

  • Tightening torques

  • Removing and installing the engine

• Engine / Pistons, Crankshaft

  • Power steering belt adjustments

  • Piston and cylinder inspection

  • Balance shaft disassembly and assembly

• Cylinder Head & Valve Drive

  • Camshaft timing & belt adjustments

  • Valve spring installation

  • Camshaft seal installation

• Lubrication & Cooling

  • Oil & filter replacement

  • Coolant mixing tables

  • Leak checks

• Fuel Supply

  • Fuel filter replacement

  • Fuel pump delivery rate

  • Injection line routing

• Turbocharger

  • System disassembly & assembly

  • Pressure measurement

  • Turbo cooling & intercooler

• Transmission & Clutch

  • Manual gearbox disassembly

  • Differential and limited-slip adjustment

• Suspension & Brakes

  • Front & rear suspension service

  • Brake pad replacement & hydraulic system

• Body & Interior

  • Doors, windows, bumpers, seats

  • Interior upholstery & equipment

• Electrical Components

  • Ignition & DME troubleshooting

  • Instruments & gauges

  • Wiring diagrams