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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).
Symptoms of oil cooler failure in the Phantom III engine.

Identifier  ExFiles\Box 131\5\  scan0077
Date  14th May 1938
  
N/W.
Rm{William Robotham - Chief Engineer}/Std.

(114.

Br1/W.14.5.38.

re Oil Coolers - Phantom III.
--------------------------

With reference to your Rm{William Robotham - Chief Engineer}/Std.11/JH.12.5.38, invariably an oil cooler failure is discovered through very bad overheating which, of course, is shown by the thermometer, and as a rule engines become very noisy: investigation for cause of this then shows that the radiator is full of an oil emulsion.

This was the case with regard to 3-BU-26 (Cook).

Br.{T. E. Bellringer - Repair Manager}
  
  


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