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).
Note with a diagram detailing oil levels, gradients, and clearances in crank chambers for a specific test.

Identifier  ExFiles\Box 16\1\  Scan009
Date  1st January 1907 guessed
  
Y740 1400
Oil in crank chambers. (Test on 60547).
up to overflow. 7 pints.
plug projects 5/8" this crank come.
Gradient.

[Diagram with dimensions]
l"
3 1/2"
hole.
< 6 1/2" >
> 1 1/4"
> 2 3/4"

Big end projects
4 1/4" inches.
(maximum)

where big end works.
Gradient = 1 in 7.25
  
  


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