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).
Modifications to the Bensport ignition system's contact breaker cam and lever.

Identifier  ExFiles\Box 61b\2\  scan0202
Date  19th May 1933
  
x6119.

To BF. from E.{Mr Elliott - Chief Engineer}

E.{Mr Elliott - Chief Engineer}/JNR.{Charles L. Jenner}1/HP.19.5.33.

c. Hs.{Lord Ernest Hives - Chair} RHC.{R. H. Coverley - Production Engineer} Hs{Lord Ernest Hives - Chair}/Wst. By/NW.{N. Walker - Patents}

re Bensport Ignition.

We send you herewith:

LeC.3498 - showing a new shape of contact breaker cam.

With the lightened contact lever DB.{Donald Bastow - Suspensions}78 the lever should follow the cam up to 5,200 engine r.p.m.

It will be noticed that the gap at the points has been reduced to .015".

There is no alteration to the contact lever except for the rubbing pad, and this has been made with a .250" radius on its face.

E/JNR.{Charles L. Jenner}
  
  


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