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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).
Request to modify the clearance for silent tappets on a Phantom II model.

Identifier  ExFiles\Box 17\6\  Scan315
Date  24th October 1934
  
x7060
To RHC{R. H. Coverley - Production Engineer},
Hs{Lord Ernest Hives - Chair}/Smth.19/KW.24.10.34.

Silent Tappets - Phantom II.

We find that we shall probably require a greater clearance between the plungers and the casings when using the E.{Mr Elliott - Chief Engineer} 82448 camshaft than with E.{Mr Elliott - Chief Engineer} 80070.

Will you therefore please modify one of the sets you are making to have 1 to 1 1/2 thous. clearance.

Hs{Lord Ernest Hives - Chair}/Smth.
  
  


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