Old land speed record breaker is fired up

Last updated 11:26 30/01/2014
IAN ROBINSON/YouTube

A restored Sunbeam car that set three world land speed records has been started up for the first time in 50 years.

Restored Sunbeam 350hp.
Malcolm Campbell at speed in the Sunbeam 350hp Pendine Sands.

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Sir Malcolm Campbell's record breaking 350hp Sunbeam has been fired up without mishap for the first time in over 50 years.

Following a complete mechanical rebuild by the Britain's National Motor Museum's workshop team in Hampshire, the handle was swung by two men, to bring the engine back to life.

The car was the brainchild of Sunbeam's chief engineer and racing team manager, Louis Coatalen, and was constructed at Wolverhampton during 1919 and early 1920.

For a period following World War I, the world was enthralled by a breed of cars powered by huge aircraft engines and the 350hp Sunbeam is one of the most famous of this group of aero-engined giants. Power came from an 18.322-litre V12 modified Manitou Arab aero engine, a type used on naval seaplanes.

The Sunbeam, renamed Blue Bird by Campbell, set three world land speed records, the first achieved by Kenelm Lee Guinness at Brooklands in 1922 with a speed of 133.75mph (215.25kmh). Campbell then purchased the car, had it painted in his distinctive colour scheme and in September 1924 achieved a new record speed of 146.16mph (235.2kmh) at Pendine in South Wales, raising it the following year to 150.76mph (242.6kmh).

Campbell sold the car soon after with then then passing through a number of owners. For a time the car's location was unknown, but in 1942 it was unearthed in Lancashire by Harold Pratley who bought it in 1944. He loaned it to Rootes Ltd - successors to the Sunbeam Company - who undertook a cosmetic restoration for promotional purposes.

In 1957 the Sunbeam was purchased by Lord Montagu, restored to working order and put on display in the Montagu Motor Museum. When not on display, it was taken to various venues in the UK and Europe and in 1960 accompanied Lord Montagu as a static display on his Motoring Thro' the Years lecture tour of South Africa. Its last outing was at the British Automobile Racing Club Festival of Motoring at Goodwood in 1962 when Lord Montagu took it on a three-lap demonstration run and Donald Campbell did a lap d'Honneur. In 1972 it moved into the newly created National Motor Museum where it has been on permanent display ever since.

During a test fire-up in 1993 to assess the car's condition, disaster struck when a blocked oil way in the engine caused it to seize and ''throw a rod''. For several years after that, the car was on display in the museum with a very visible hole in its engine where the piston and con-rod had exited.

In 1987 the car was repainted and the wheels rebuilt. Around 2007, the workshop team started looking at the car with a view to repairing the engine and an initial strip-out allowed them to assess the damage sustained in the 1993 start-up. Examination showed that the con rod had come through the side of the crank case, scoring the crank shaft and damaging three pistons and valves.

The Sunbeam Talbot Darracq Register was approached to assist in finding parts, specialist services and skills to undertake the rebuild. A restoration of this size is a very time consuming process, approximately 2000 hours on this project, so the museum workshop relied heavily on the use of volunteers to do the work, directed by the workshop's senior engineer, Ian Stanfield, and also on generous donations by specialist suppliers.

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As part of the engine rebuild, the crank case metal was stitched, the crank shaft re-ground and polished and the damaged cylinder bore re-lined. Damaged con rods, pistons, valves, springs, gudgeon pins and white metal bearings were replaced with new and the main bearing re-metalled and line-bored. The rear axle was taken apart and cleaned and the chassis and running gear renovated.

"This project has been a long-running labour of love for the whole team and such has been their passion that many have dedicated hours of their own time to get the job done. There is huge satisfaction in seeing it finally completed,'' Doug Hill, the museum's chief engineer said.

"However, there is more that we still want to do and our next objective is to research the design of the original gearbox – all original drawings and records were lost when the Sunbeam factory was bombed during World War II - so that we can restore the car to the full 1920s specification, as driven to two world land speed records by Sir Malcolm Campbell at Pendine Sands in 1924 and 1925."

The Sunbeam will be fired up again at the Retromobile classic car show in Paris next month before returning to the museum to take its place in a new display, For Britain & For The Hell Of It – the story of British land speed records, opening for Easter 2014.

- Stuff

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