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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).
Crankcase modification to prevent oil starvation under braking.

Identifier  ExFiles\Box 132\3\  scan0014
Date  17th November 1933
  
To BY.{R.W. Bailey - Chief Engineer} from E/JNR.{Charles L. Jenner}

c. Hs.{Lord Ernest Hives - Chair} Sft.{Mr Swift} RHC.{R. H. Coverley - Production Engineer}

X216.

E/JNR.{Charles L. Jenner}4/HP.17.11.33.

We send you herewith drawing:

LeC.3702 showing a modification to the bottom half of the crankcase which consists in making the hole through the forward cross web restricted in size so that the oil will not flow away from the oil strainer when braking the car violently.

The equivalent of this alteration is being fitted to the next 10,000 miles car by fixing a plate to the web and around the suction pipe.

E/JNR.{Charles L. Jenner}
  
  


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