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Oil leaks from the gearbox and No.7 bearing on a 25 HP model, with proposals for modification.


Identifier  ExFiles\Box 103\2\  scan0214
Date  23th March 1930
  
-2-
Hs {Lord Ernest Hives - Chair} /GML.2/ML.23.3.30.Contd.

The results of the tests with the 25 HP. show
that with the flywheel acting as a pump the least leak of
oil occurs but the gear-box leaks are increased. We find
that the leak only occurs when the car is driven hard for
some distance. At a touring speed of not more than 40 M. {Mr Moon / Mr Moore}
P.H. there are no oil leaks.

In view of the fact that the Test Dept. are now
complaining of oil leaks from No.7 bearing on the 25 HP. we
propose that the scheme of making the clutch case air tight,
without the balancing scheme, be brought into production.
It will be necessary to leave a hole in the undershield to
get at the drain plug fitted into the clutch case, for
periodical draining. This should not be necessary more
than once every 2,000 miles.

Hs {Lord Ernest Hives - Chair} /GML.
  
  
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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