Rolls-Royce Archives
         « Prev  Box Series  Next »        

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).
Slow running issues on a Peregrine engine due to camshaft overlap, with a new timing diagram.

Identifier  ExFiles\Box 169\4\  img255
Date  24th March 1933
  
mis.
R:C. from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson}1/KT.24.3.33.

We are in trouble with the slow running on Peregrine. This is because we have too much overlap on the camshaft. Will you please make up a camshaft with the cam form to Lec.3223, the angle between the cams being 111°, which should give the timing shown below.

[Diagram showing cam timing with labels: T.D.C 2°, Ex 44°, IN 42°]

Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙