1982–1991 Porsche 944 Workshop Manual

Official Porsche 944 Factory Workshop Documentation

• Covers 1982–1991 Porsche 944, 944 S, 944 S2, and Turbo, including 16-valve powertrain configurations and sports package variants
• Original OEM publication, printed in Germany, spanning multiple revision dates from 1987 through 1991
• Contains 56 detailed diagrams of engine components, suspension beams, and valve-drive assembly tools, alongside specialized self-diagnosis test-code charts
• Accessible from your device as soon as the order is placed
• Stored against your account so you can retrieve it after a hard-drive loss
• Full-text search finds any part number in seconds
• Laid out for standard letter and A4 printing
• This 1423-page manual acts as the primary reference for the 944-series vehicle build, documenting proprietary M 44.40 and M 44.41 engine specifications and electronic control systems

Engine and Diagnostic System Overview

The 1982–1991 Porsche 944 workshop manual provides detailed information on internal engine components, including crankcase architecture, forged crankshafts, and multi-stage tightening patterns for cylinder heads. The content spans technical specifications for M 44.40 and M 44.41 engine types, detailing valve timing, lubrication circuit pressures, and piston ring tolerances. Maintenance sections document the use of the System Tester 9288 to perform fault memory readout, actuator diagnosis, and system adaptation for DME control units.

Specification Highlights

Engine cooling system capacity for the Porsche 944 is documented at 8.5 liters in the technical data section. The piston ring gap clearance for the M 44.40 engine is specified at 0.20–0.40 mm in the tolerance charts. Torque for the transmission case bolts is calibrated at 30 Nm in the crankshaft and crankcase section. The manual includes comprehensive reference values for compression ratios, fuel octane requirements, electrical suppression standards, and axle loads tailored for standard and sports configurations. Official 1423-page Porsche OEM workshop manual covering the 1982–1991 Porsche 944, documenting engine, chassis, electrical, and fuel-injection specifications across the entire production run.