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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Letter to Mr. Maddocks regarding issues with a high speedometer reading, carburettor, and water temperature.

Identifier  ExFiles\Box 29\3\  Scan072
Date  2nd June 1920
  
X.788

Expl: Dept.,
Messrs. Rolls-Royce Ltd.,
Derby.

RFC.

X.2631 - 40/50 H.P. at Brooklands

2.6.20.

To -
Mr. T. Maddocks,
"The Wey" Restaurant,
Weybridge.

Dear Maddocks,

With reference to your report, it is noticeable that the Speedometer is reading high.

As regards the trouble with the Carburetter, I rather anticipate you may have trouble owing to insufficient petrol at very high speeds - you may either have to work with 4 lbs. pressure or else, increase the lift of the needle valve to get sufficient petrol.

I am rather surprised to hear that the Water Temperature rises to 100°C.

Yours faithfully,
  
  


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