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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 misfires on plugs due to burnt points.

Identifier  ExFiles\Box 162\5\  img007
Date  11th May 1937
  
WST 6001b.

HOTEL DE FRANCE,
CHATEAUROUX, Indre.
France.
Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}/AJG/3/JAB. 11th May 1937.

To. Rm.{William Robotham - Chief Engineer}
c.c. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux}

3. B. IV.

We have experienced misfires on the plugs due to burnt points, so are sending them for your examination.

They have covered 7.100 miles since they were last set at .020" and a total mileage of 9.400. Each plug is marked with the gap and the position in the engine when removed but are now set at .018", this was done to verify misfiring. No attempt has been made to clean or otherwise alter them.

----------------

Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}/AJG.
  
  


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