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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).
Modifications to an oil pump and the removal of ballast from a car.

Identifier  ExFiles\Box 4\9\  09-page209
Date  17th April 1926
  
X58409

Hotel de France,
Chateauroux,
Indre,
France.

April, 17th 1926.

To " E.S.".
From G.S.H.

10 G.III.

Re oil pump with holes drilled in bottom of teeth.
As per your instructions we stopped up all holes, then refitted the pump.
After two day's running, we can now safely say that the pump is functioning O.K. We get a steadier pressure of oil these last two days than at any other time.
We shall drill one hole out in each gear wheel and note results.
We will forward results as soon as we are satisfide.

We have taken the Ballast out of the car as to your instructions.
The car is at present running exceedingly well.

G.W.Hancock.
  
  


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