Description

Ferrari 308 Workshop Manual

You are looking at an original factory reprint of the Ferrari 308 Workshop Manual, not some aftermarket knockoff that guesses at specs. In my shop I have seen too many techs trust third-party data and end up with stripped threads or misaligned timing. This manual runs 209 pages, and every torque value, clearance, and diagnostic step came straight from Ferrari’s technical service in Modena. That matters when you are pulling the engine on a 308 GT4 or chasing a fuel-system gremlin. Part number 95990809, batch MP2158 – this is the real deal.

Ferrari 308 Workshop Manual: What You’re Actually Getting

The table of contents goes deep. Section B covers the engine – eight-cylinder, 90-degree V, 81 mm bore, 71 mm stroke. Section D handles cooling, Section E the fuel system. Section L and M are front and rear suspension. That is exactly what you need if you are rebuilding the front suspension on a 1975 308 GT4 and need the spec for the anti-roll bar or the coil spring free length. This manual includes the factory alignment numbers, not a generic chart. Automotive Industry Overview shows how OEM docs differ from aftermarket – this Ferrari book is the OEM baseline.

Engine Overhaul: Section B Procedures

Pages 5-30? Actually the manual splits by section letter. Engine specifications are in Section B, including the compression ratio (8.8:1), maximum power 250 CV at 7000 RPM, torque 29 kgm at 5000. If you are rebuilding, you need the main bearing cap torque sequence. That is not in some online forum. It is in Section V, the tightening torques section. I have had customers bring me cars where a backyard mechanic guessed the head bolt torque and warped the deck. This manual prevents that. Period.

How Does the Cooling System Section Help?

Section D covers cooling outright. Radiator removal, thermostat specs, coolant capacity. The refuelling page (Section A5) even tells you the correct fuel grade. But for cooling, the manual details the belt-driven water pump and the expansion tank routing. If you have an overheating 308, start with Section D. It lists the fan switch temperature and the correct coolant mixture.

209 Pages of Factory Data

Every page comes from the original Ferrari workshop manual print. The document includes sections from A through Y. Section Y covers the emission control system – a pain point on later 308 models with thermal reactors. Without the factory procedure, you can chase vacuum leaks for hours. The manual gives you the exact hose routing and the EGR valve test sequence. Page numbers are not cluttered; you navigate by section letters. Section T (Electric System) gives wiring diagrams for the 12-volt system, including the Borletti air conditioning compressor wiring.

Get the Right Torque Data from Section V

Torque specs are the difference between a reliable rebuild and a leaky nightmare. Section V is labeled TIGHTENING TORQUES. It lists values for cylinder head bolts, main bearing caps, connecting rod nuts, flywheel bolts, and suspension fasteners. These are in kgm – you will need a torque wrench that reads in those units. Do not convert and round; use the factory values. The manual also includes special tool numbers in Section U, so you know what factory tool Ferrari designed for the valve guide installation. Not having that tool is not an excuse – you can source it or fabricate an equivalent if you know the dimensions.

Suspension and Steering: Factory Alignment Specs

Front suspension independent with swinging arms, coil springs, hydraulic shocks, an anti-roll bar. Rear suspension is independent too. Section L and M give you the camber, caster, toe settings. Steering is rack and pinion, 3.28 turns lock to lock. If you are replacing bushings or ball joints, the manual includes the tightening torque for the lower arm pivot bolt. I have seen aftermarket manuals list the wrong thread pitch for the tie rod end. This one does not.

If you are working on another Ferrari, check the Ferrari 308, 328 Workshop Manual – OEM Factory Repair Specs for the V8 lineage or the Ferrari Testarossa Workshop Manual – 557 Pages of OEM Specs for the flat-12. For a front-V12, the Ferrari 550 Maranello 1996 Workshop Manual – 223 Pages OEM Factory Repair covers that. Automotive Industry Overview puts the value of factory documentation in perspective – you cannot beat original engineering data.

Does this manual cover the air conditioning system?

Yes, Section S. It covers the Borletti 700 AP compressor and the system components.

What makes this better than aftermarket manuals?

Aftermarket manuals often skip the tightening torque tables, omit the special tool references, or give generic clearances that do not match the 308’s F106 A engine. This reprint is the actual factory workshop manual published by Ferrari-Servizio Assistenza Tecnica-Modena. It includes every torque value (Section V), every wiring diagram (Section T), and every suspension alignment spec (Sections L and M). The part number 95990809 on the back matches the original dealer part. When you follow these instructions, you are following what Ferrari wrote for its own technicians. No guesswork, no third-party translation errors. I have used this manual to rebuild 308 engines and the car ran cooler and pulled stronger because every clearance was factory spec. That is the difference.

You need the real data for your Ferrari 308. The factory manual is the only source that guarantees the specs your car left the factory with. Access the Factory Manual from AutoRepairManuals and get the complete 209-page PDF, ready to print or view on your tablet while you work. No waiting for shipping, no digital watermarking – just the original reprint.