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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).
Report from France regarding Phantom III engine trouble with hydraulic tappets and valve clearances.

Identifier  ExFiles\Box 96\2\  scan0199
Date  5th January 1936
  
Handwritten: To Lee
Handwritten: Swell - Please see production & then discuss with me
Handwritten Initials: Rm{William Robotham - Chief Engineer}
Handwritten Number: 354.

HOTEL DE FRANCE.
CHATEAUROUX. Indre.
France.

5th January 1936.

PHANTOM III.

They are having trouble over here with the hydraulic tappets. Valves are remaining open during runs. They have found that the clearance of the plungers in the hydraulic cylinder have not the required clearance called for on the drawings. In some cases the clearance is less than .001" on the diameter. The drawing calls for .0012.
There are also symptoms of valves sticking. Sr. had this trouble during his return journey from the South this week-end.

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Signature: GWHancock
Typed: G.W.H.
  
  


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