1913 Isotta Fraschini Tipo OC4 25/35 HP

From  1913

Chassis  OC4 2780

Drum Brakes  Front-Rear Mechanical Operation

Front Suspension  Live axle with leafsprings

Manufacturer  ISOTTA FRASCHINI MOTORI S.P.A.

Notes Brakes  front operated by hand, rear (bigger drums than OC3) by pedal

Chassis Frame  Ladder Frame

Rears Suspension  Live axle with leafsprings

Steering  Worm and sector

Steering: Hydraulic-assistance  N

Technical Specifications and History  Y

Wheel track front  1400 mm

Wheel track rear  1400 mm

Wheelbase  3170 mm

From  1913

Arrangement  Inline

Bore  100 mm

Stroke  140 mm

Cooling System  Water Cooled

Cubic displacement  4398 cc

Cylinders  4

Electrical equipment Volt  6

Engine  2780

Engine Type  Front

Fuel System Carburettors type  Isotta Fraschini Zenith

Fuel System Carburettors Number  1

Gearbox Number of forward speed  4

Manufacturer  ISOTTA FRASCHINI MOTORI S.P.A.

Maximum power  36 hp

Maximum power  1600 rpm

Notes Engine  In 1963, the car underwent mechanical restoration at the workshop of Giacomo Pozzoni in Robbiate (Lecco). The restoration included the engine, gearbox, clutch, and rear axle. There was an issue with the rear axle, as it had been inverted, probably due to the vehicle's prior utilitarian modifications.

Technical Specifications and History  Y

Top speed  75 Km/h

Transmission Clutch  Dry dual disc Mechanical

Fuel Type  Petrol-Gasoline

Valves per cylinder  2

Valvetrain  Pushrod

Transmission Wheel drive  Rear wheel drive

From  1965

Coachbuilder  Carrozzeria Riva

Colour  Red

Colours Description  Red body with black fenders.

Wheels type  Wodden

Notes body  The car was restored in a style typical of its era: a Double Phaeton.

Number of spare wheels  1

Number of wheels  4

Type of body  Double Phaeton

Tyres Front size  820 x 120

Tyres Rear size  820 x 120

From  1965

Hand drive  RHD - Right Hand Drive

Material  Leather

Number of seats  4

Seats  Black