1982-1989 Ferrari 308 / 328 Quattrovalvole GTB GTS Service Manual

Inside the 1982–1989 Ferrari 308/328 Service Manual

• Official 115-page Ferrari OEM publication (Cat. 550/89, Cod. N. 95990873) covering the 1982–1989 Ferrari 308 Quattrovalvole, 328 GTB, and 328 GTS models.
• Documents the F 105 V8 engine family, detailing specific mechanical differences between the 308 and 328 series, including bore/stroke variations and gear ratios.
• Contains 40 exploded-view diagrams and 12 specification tables for engine, lubrication, cooling, and transmission systems.
• Delivered as an instant download the moment payment clears.
• Fully searchable OCR text layer lets you jump straight to a torque spec or clearance value.
• Formatted for standard Letter and A4 shop printers.

Technical Documentation Overview

This service manual breaks down the mechanical systems of the F 105 V8, organized directly for professional workshop application. You get exact factory tolerances, eliminating the guesswork when diagnosing or rebuilding these classic drivetrains. The documentation covers general vehicle identification, complete engine assembly, lubrication and cooling circuits, clutch configuration, and gearbox mechanicals. Working on high-performance Italian drivetrains requires strict precision. Always verify factory lifting points and secure the vehicle on approved jack stands before initiating any under-chassis inspections or fluid drains outlined in these chapters.

Technical data is dense, specific, and ready for the bench. You will find complete parameters for cylinder head assembly, timing systems, and valve clearance adjustments. Need exact numbers? The manual lists the 308 Quattrovalvole displacement at 2926.9 cc with a 9.2:1 compression ratio. Peak torque for the 328 GTB/GTS is documented at 304 Nm at 5500 rpm. It also covers essential capacities, noting a 22-liter cooling system, and specifies vital internal tolerances, such as the F 105 main bearing assembly clearance of 0.029–0.064 mm.