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).
Engine lubrication tests and results.

Identifier  ExFiles\Box 16\1\  Scan008
Date  1st January 1907 guessed
  
Engine Lubrication
X740 1400
714 - found insufficient oil for full power (cat & fiddle) even at 20 lbs.
Gudgeon pins made .002 slack with 1/2 groove 3/16 x .010". but too much oil running past engine - smoke stopped 1 lb pressure but big end seized (no 2).
Gudgeon bushes from .002 slack - steel at 20 lbs no appreciable smoke but engine easy & slight smoke after running light. VP
  
  


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