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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 The Ethyl Export Corporation regarding misfiring issues with K.L.G. 850 plugs and Ethyl fuel.

Identifier  ExFiles\Box 162\4\  img157
Date  28th July 1936
  
COPY.
[Handwritten:] 86001b

Hs{Lord Ernest Hives - Chair}/Wst.1/JH.
28th July, 1936.

- 2 -
[Handwritten:] 8128

F.R.Banks, Esq.,
The Ethyl Export Corporation,
Thames House,
Millbank,
London, S.W.1.

Dear Banks,

Have just returned from holiday and have noted the correspondence between Rm.{William Robotham - Chief Engineer} and yourself regarding misfiring on K.L.G. 850 plugs when used with Ethyl.
I have been thinking hard about the whole business a lot lately and wondered whether you could give me any information in response to the following questionnaire :-

(a) Is a short blunt nosed insulator less prone to lead deposit, of a nature such as to cause misfiring, than a long insulator nose like the 850 K.L.G.?

(b) Is there any test to which we can submit, plugs to detect leakage?

(c) Is there a critical temperature at which lead deposits form of a conductive nature and which when subjected to higher temperatures become non-conductive.
  
  


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