Rolls Royce Phantom 3 History
The Rolls-Royce Phantom III was the company's final major pre-war Luxury car. The Phantom 3 is powered by a 7.32-litre aluminum-alloy V12 engine with a bore of 3.25 inches and a stroke of 4.5 inches. It is a pushrod engine with overhead valves that are controlled by a single camshaft located in the valley between the cylinder banks. Early automobiles used hydraulic tappets, or a unique system of eccentric bushings in each individual rocker that was operated by a little hydraulic piston; the eccentric bushing ensured zero valve-lash at the rocker/valve contact.
In 1938, this mechanism was upgraded to solid adjustable tappets. The Rolls Royce Phantom III is unique in that it has two distributors, two coils, and 24 spark plugs. A twin SU electric pump provides fuel. Although wire wheels are typical, many automobiles also use Ace wheel discs. The automobile has on-board jacking and a one-shot chassis lubrication system, which is controlled by a lever within the driver's cabin. A coil spring-based independent front suspension system is supplemented by a carryover semi-elliptical spring unit in the back.
The transmission is a 4-speed manual with synchromesh on gears 2, 3, and 4. Overdrive was introduced in 1938. The vehicle has 4-wheel servo-assisted brakes that are applied via cable. Staybrite steel is used for the radiator shell. The car's sheer size is reflected in its performance numbers. A specimen tested by The English Autocar magazine in 1938 achieved a maximum speed of 87.5 mph and a 0-60 mph time of 16.8 seconds. According to the results of the driving test, the overall fuel consumption was 10 mpg.