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Querying the lack of information on adjustable tappets in a 12,000-mile report on a Cadillac.


Identifier  ExFiles\Box 125\2\  scan0221
Date  8th March 1935
  
GWH {George W. Hancock - Head Chateauroux} xinga

To Hs. {Lord Ernest Hives - Chair} from Sg. {Arthur F. Sidgreaves - MD}
Copy to Wor. {Arthur Wormald - General Works Manager} E.
BY.EP. {G. Eric Platford - Chief Quality Engineer} Mx. {John H Maddocks - Chief Proving Officer}

12,000 Miles Report on Cadillac

Sg {Arthur F. Sidgreaves - MD} 5/E8.3.35

Referring to Hs {Lord Ernest Hives - Chair} /GWH. {George W. Hancock - Head Chateauroux} 19/KW.5.3.35 I have read this through but can find practically no reference to adjustable tappets.

The only reference I can find is on Page 2 where it says that they had a period of misfiring due to the sticking of the eccentric bushes of the silent tappets holding the valves full open.

Is this really all there is to say, as I understood from Roberts that they had had a great deal of trouble with these adjustable tappets and I was particularly interested because I understood that the Cadillac type was the type that we were proposing to adopt, but I may be wrong.

Sg. {Arthur F. Sidgreaves - MD}

file
reported
Sg. {Arthur F. Sidgreaves - MD}
  
  
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).


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