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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).
List of requested modifications for 'Sg's Car' (58.GN).

Identifier  ExFiles\Box 18\3\  Scan343
Date  18th August 1932
  
x7960.

To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}6/KT.18.8.32.

58.GN. Sg{Arthur F. Sidgreaves - MD}'s Car.

Will you please make the following modifications to this car.

(1) 5¾ : 1 High Compression Head with valves and washers as on 19-EX.
(2) W.W. 114º High lift camshaft.
(3) Valve springs to Hs.{Lord Ernest Hives - Chair}688, Hs.{Lord Ernest Hives - Chair}665.
(4) New thickened central plate to slipper wheel as on 19-EX.
(5) Stronger clutch springs to Hs.{Lord Ernest Hives - Chair}652.
(6) Clutch pedal to F.84379.
Clutch fingers to Hs.{Lord Ernest Hives - Chair}666
Clutch pedal to be set level with brake pedal.
Clutch operating lever to Hs.{Lord Ernest Hives - Chair}687.
(7) Exhaust system as per Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}2/KT.10.8.32.
(8) Friction in the column as on 20-EX.

Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
  
  


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