1973 ALFA ROMEO GTV

Symptoms: hard starting when cold or hot, rough idle and poor throttle response, fuel weeping from injection pump seals, black smoke under acceleration

Fix: The Spica injection pump requires specialized rebuild or replacement—seals dry out, internal tolerances open up, and timing drifts. Few shops understand these systems. Pump rebuild runs 12-15 hours if you find someone competent; many owners convert to Weber carburetors instead (8-10 hours plus fabrication).

Estimated cost: $2,000-3,500

Typical onset: 80,000-150,000 mi

Symptoms: heavy knocking from bottom end, metallic rattle at idle that worsens with RPM, oil pressure drop, metal shavings in oil filter

Fix: Alfa twin-cams are rev-happy but the crankshafts can crack or the main bearings spin if oil changes were skipped or wrong oil used. Engine-out rebuild required—20-30 hours labor depending on machine work needs. Crankshaft grinding or replacement, new bearings, seals, gaskets. Often find piston ring wear and valve guide issues once you're in there.

Estimated cost: $4,500-7,500

Symptoms: clunking when shifting or engaging clutch, excessive driveline vibration, shifter moves around under load, visible rust holes in crossmember

Fix: The transmission crossmember and mounts rot out from road salt and moisture trapped by undercoating. Crossmember needs fabrication or replacement—rust repair can take 4-6 hours if welding patches, 2-3 hours if bolt-in aftermarket piece available. Rubber mounts themselves are cheap but access requires supporting the transmission.

Estimated cost: $400-900

Symptoms: visible holes in floor under carpet, rocker panels crumbling or missing, door sills flex when jacked, battery tray area rotted through

Fix: Italian steel and northern winters are mortal enemies. Floor pans rust from inside-out under carpet and sound deadening. Proper repair means cutting out rust and welding in patches or complete pan sections—15-30 hours depending on extent. Rockers are structural; if compromised, the car is unsafe. Many cars have had amateur bondo jobs hiding this.

Estimated cost: $3,000-8,000

Typical onset: 60,000-100,000 mi

Symptoms: rattling from front of engine on cold start, timing chain slap at idle, timing marks off during inspection, metal particles in oil

Fix: The twin-cam uses a chain with plastic guides and a tensioner that wears. If the chain jumps timing, expect bent valves. Front cover off, replace chain, guides, tensioner, and water pump while you're there—8-10 hours labor. Should be done every 60k-80k miles or when noise appears.

Estimated cost: $1,200-1,800

Symptoms: intermittent gauges and lights, no-start with good battery, wiper or turn signal failures, melted wire insulation under dash

Fix: Lucas and Bosch components from 1973 don't age gracefully. Fuse boxes corrode, grounds fail, and cloth-wrapped wiring becomes brittle. Diagnosis is time-consuming—plan 3-6 hours chasing gremlins per issue. Full rewiring harness replacement runs 15-20 hours but may be necessary if multiple circuits are compromised.

Estimated cost: $500-2,500

Typical onset: 70,000-120,000 mi

Symptoms: gear oil drips on garage floor, wet rear axle housing, whining from rear end when low on fluid, oil on inside of rear wheels

Fix: Pinion seals and axle seals leak as they age—common but not urgent unless ignored until differential runs dry. Rear axle out, replace seals and bearings while accessible—4-6 hours. If differential itself is worn (common after low-fluid operation), rebuild adds another $800-1,200.

Estimated cost: $600-1,000