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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).
Engine starting procedures, primer usage, and cold weather performance.

Identifier  ExFiles\Box 31\3\  Scan046
Date  10th November 1919
  
X.1449.

To Hs.{Lord Ernest Hives - Chair} from Bn.{W.O. Bentley / Mr Barrington}
Copy to CK.{Mr Clark}

X.3082.
X.1812.
X.1449.

Bn{W.O. Bentley / Mr Barrington}7/W10.11.19.

Please see attached copy of note from PN{Mr Northey}, (PN{Mr Northey}11/WL6.11.19) and CJ's remarks. Will you please report on this point to CJ. Do we recommend that the engine be started in the way indicated by PN.{Mr Northey} I have never experienced any difficulty either with or without the electric starter providing the primer is used, and the pump strokes varied in number from 10 to 30 according to whether the weather is mild or cold. I cannot recall a single instance of failure to start, and hand starting is now extraordinarily easy. I think we should expect a certain amount of sooting up with the primer, and in fact with almost any device for starting when the engine is very cold, as we have to contend with the difficulty of petrol condensing in the combustion chamber and thus being forced to a very rish mixture at starting.

Bn.{W.O. Bentley / Mr Barrington}

Att:- Copy to PN{Mr Northey}11/WL6.11.19.
  
  


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