Engine covered in this Porsche repair manual:
* 3.2 liter 6-cylinder (930/21 and 930/25), horizontally opposed, air cooled.
This manual includes a complete engine disassembly and rebuilding guide, with full details on techniques and specifications, as well as camshaft and timing chain replacement techniques with engine in car.
Transmissions covered:
* 915 (5-speed, with cable-operated clutch)
* G50 (5-speed, with hydraulic clutch)
Complete removal and disassembly guide, including clutch disassembly, clutch cable and linkage rebuilding, clutch hydraulics service