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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 from S.U. Carburetter Co. Ltd. regarding a new needle assembly for a thermostatic carburetter.

Identifier  ExFiles\Box 149\4\  scan0214
Date  11th March 1937
  
1263
TELEPHONE: BIRMINGHAM EAST 1171.
TELEGRAMS: FLEXCARBUR, BIRMINGHAM.
THE S.U. CARBURETTER CO. LTD.
PROPRIETORS> MORRIS MOTORS LTD.
LORD NUFFIELD CHAIRMAN
T. C. SKINNER, M.I.A.E. MANAGING DIRECTOR
OLIVER BODEN, O.B.E., VICE-CHAIRMAN
BORDESLEY GREEN ROAD, ADDERLEY PARK, BIRMINGHAM, 8.
YOUR REF: Rm{William Robotham - Chief Engineer}/JBD.{John B. Dixon - Fuel Systems}9/JH.
OUR REF: RLK/NK.
Messrs. Rolls-Royce Ltd.
DERBY.
11th March 1937.
Dear Sirs,
For the attention of Mr. Dixon.
Herewith please find another needle assembly for the thermostatic carburetter. The writer was certainly rather surprised when he tested your car that it did not pile up more. We cannot see quite why it wants so much more petrol than any other car we have tried. It is of course a fairly big engine, but if this pointed needle we are sending you proved inadequate, the only thing will be to open up things generally, that is, to use a larger jet and needle and larger passages for the mixture.
Yours faithfully,
For THE S.U. CARBURETTER CO. LTD.
Enclosure
  
  


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