Rolls-Royce Archives
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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 questions regarding high power engine performance, cylinder wear, and blow-by.

Identifier  ExFiles\Box 134\1\  scan0174
Date  2nd December 1939
  
-2-
Rm.{William Robotham - Chief Engineer}1/MH.{M. Huckerby}2.12.39.

(d) Are the high power engines really worse than the old type ? If so why ? Does it mean high power cyl. going out of round. We could check by running with pinned rings.

(e) Can you hear blow-by on 30.G.VII? If not, can this be cause of good idling ?

Rm.{William Robotham - Chief Engineer}
  
  


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