1975-1989 Porsche 911 Turbo (930) Workshop Manual

Porsche 911 Turbo (930) Workshop Documentation

• Covers 1975–1989 Porsche 911 Turbo and Turbo Carrera (Type 930) models, including 3.0L and 3.3L engine variants
• Official Porsche OEM publication WKD 481 321, Edition 1976 with subsequent 1980s updates
• Contains 47 detailed exploded-view diagrams and 18 technical torque specification tables for engine and fuel system components
• OCR text layer lets you jump to a torque spec by keyword
• Laid out for standard letter and A4 printing
• Downloads to your account within seconds of checkout
• Your order stays downloadable from your account for life
• This specific edition is the factory-authorized reference for 930 engine assembly, fuel injection timing, and turbocharger system maintenance

Engine and Turbocharger Reference

The Porsche 911 Turbo workshop manual focuses on the mechanical maintenance of the 930 engine family. This documentation details assembly procedures for the light-alloy, two-piece crankcase and forged crankshaft components. The manual also describes the turbocharger oil supply circuit, waste gate pressure control valve, and intake air intercooler systems. It provides comprehensive data on CIS (Continuous Injection System) adjustments and idle settings for various global market configurations.

Specifications and Technical Data

Engine technical data includes reference values for piston and cylinder clearances, valve spring lengths, and ignition timing adjustments. Cylinder head bolt torque values are documented in a multi-stage sequence, with 33 Nm specified for assembly. The total oil capacity for the system is documented at 13 liters. Valve clearance for the intake is listed at 0.10 mm in the cylinder head specification table. The crankshaft bearing journal dimensions are provided in a multi-size wear table for engine rebuilding. Reference the what an OEM service publication covers for additional details on structural organization.

All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. An official Porsche OEM workshop manual covering the 1975–1989 911 Turbo (Type 930), documenting engine, turbocharger, fuel injection, and chassis specifications for the 930-series build.