Fiat 850 Workshop Manual 1964-1973

Description

Factory Fiat 850 Workshop Manual (1964-1973)

This official factory-level repair manual covers every Fiat 850 produced between 1964 and 1973, giving US-based owners and technicians complete service data for one of Italy’s most beloved rear-engine compacts.

Powertrain & Drive Coverage

Component	Variants Covered
Petrol	843cc OHV inline-four (100G/100GB, 34-37 hp); 903cc OHV inline-four (Sport models, up to 52 hp)
Diesel	N/A
Transmissions	4-speed manual (synchromesh on upper gears); semi-automatic
Drive	RWD (rear-engine, rear-wheel drive)
Model Years	1964-1973
Badge Twins	N/A

Common Fiat 850 Repairs Covered

System	Procedures
Engine Cooling	Thermostat replacement and cooling fan diagnosis; the air-cooled-adjacent rear layout is prone to overheating if fan belt tension is neglected
Electrical System	6-volt to 12-volt conversion documentation; charging circuit and alternator/generator testing and replacement
Clutch & Gearbox	Clutch cable adjustment and disc replacement; synchromesh rebuild procedures for the 4-speed unit
Suspension & Steering	Front MacPherson strut service; rear semi-trailing arm bushing replacement – a known wear item on high-mileage 850s

Format & Delivery

PDF. Instant download; lifetime re-downloads.

Frequently Asked Questions

Which body styles are included in this manual?

All Fiat 850 variants produced from 1964 to 1973 are covered, including the Berlina sedan, 850 Special, Coupe, Spider (Series 1 and Series 2), Familiare estate, Sport Coupe, and Sport Spider. Both standard and Sport trim specifications are fully documented.

Does the manual cover both the 843cc and 903cc engines?

Yes. Complete rebuild procedures, torque specifications, and troubleshooting guides are provided for both the original 843cc unit (engine codes 100G and 100GB) and the enlarged 903cc Sport engine. Horsepower output ranges from 34 hp on base models up to 52 hp on Sport variants.

Are wiring diagrams included for all model years?

Yes. The electrical section covers both the early 6-volt and later 12-volt systems used across the 1964-1973 production run. You’ll find complete circuit diagrams, fuse box layouts, wire color codes, and component locations for the charging, ignition, lighting, and accessory circuits.

What format is the manual?

The manual is delivered as a fully searchable PDF file. After purchase you can download it immediately and store it on any device – PC, Mac, tablet, or smartphone. Individual pages or complete sections can be printed for bench use, and your download link remains active for lifetime re-downloads.