AC Aceca Handbook
The technical companion to the archive: fault finding, wheels and tyres, tuning, and hands-on repair guides. Written for owners, in plain English, and always referring safety-critical and specialist work to a specialist.
- Fault Finding
Symptom → cause → fix
A searchable, filterable database of common Aceca faults across every system, with diagnostic checks, the fix, difficulty and when to consult a specialist.
Open - Wheels & Tyres
Sizes, pressures, and the age rule
Original tyre sizes and cold pressures, modern options, routine checks, and the essential DOT date-code age check that keeps a classic tyre safe.
Open - Tuning
Carburettors & ignition
Balancing triple carburettors — SU, Solex or Ruddspeed — and setting the Lucas distributor. An owner's overview, deferring precise figures to the manual.
Open - How-to & Repairs
Task-focused guides
Original plain-English guides for common jobs: cooling flush, triple-carb balance, ignition timing, aluminium-body care and brake fluid change.
Open - Ownership & Maintenance
Fuel, oil & additives
Ethanol, unleaded and low-zinc modern oils vs the AC, Bristol and Ford engines — what actually helps and which bottles are marketing.
Open - Reference
Solex 32 BI carburettors
In-depth reference on the Solex 32 BI downdraught carburettors fitted to the Aceca-Bristol, including servicing and reconditioning.
Open - Reference
The Bristol engine
The 100-series six that transformed the Aceca — its BMW-328 origins, cross-pushrod valvegear and character.
Open