Description
Factory Ferrari 365 GT4 BB Workshop Manual (1973–1976)
The definitive factory-level repair resource for American owners and technicians working on Ferrari’s groundbreaking Berlinetta Boxer — the first mid-engine V12 road car to carry the Prancing Horse badge.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | 4.4L Flat-12 (Tipo F102 AB) — four Weber 40 IF3C carburetors, DOHC per bank, ~380 hp |
| Diesel | N/A |
| Transmissions | 5-speed manual transaxle (rear-mounted) |
| Drive | RWD |
| Model Years | 1973, 1974, 1975, 1976 |
| Badge Twins | N/A |
Common 365 GT4 BB Repairs Covered
| System | Procedures |
|---|---|
| Weber Carburetor Synchronization | Balancing and jetting all four Weber 40 IF3C carburetors; idle mixture and float level adjustment |
| Timing Belt & Cam Drive | Inspection, tensioning, and replacement of the flat-12 cam drive system; valve timing verification |
| Rear Transaxle & Differential | Gear synchronizer service, differential bearing preload, and seal replacement on the rear-mounted unit |
| Cooling System | Thermostat replacement, radiator flush, hose inspection, and coolant capacity specifications for the mid-engine layout |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
How do I properly synchronize the four Weber carburetors on the F102 flat-12?
The manual provides step-by-step balancing procedures for all four Weber 40 IF3C carburetors, including airflow synchronization using a vacuum gauge, float level settings, idle jet selection, and progression circuit checks. Factory torque specs and adjustment sequences are fully documented.
Is the 365 GT4 BB related to the later 512 BB or 512 BBi?
Yes — the 365 GT4 BB is the direct predecessor to the Ferrari 512 BB (1976–1981) and the fuel-injected 512 BBi (1981–1984), all sharing the same Berlinetta Boxer mid-engine platform and Pininfarina body concept. This manual covers only the original 4.4L 365 GT4 BB produced from 1973 to 1976.
Are wiring diagrams and electrical schematics included?
Yes. The manual contains full electrical system documentation including ignition, charging, lighting, and instrumentation circuit schematics. Wire color codes, connector locations, ground point identification, and fuse assignments are all covered for accurate diagnosis of 1973–1976 Berlinetta Boxer electrical faults.
What format is the manual?
This manual is delivered as a PDF document, compatible with Windows, Mac, Linux, Android, and iOS devices. After purchase, download is immediate and your access for future re-downloads never expires.
Reviews
There are no reviews yet.