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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).
The pinning of valve tappets, confirming they will be fitted to the 10,000 miles car.

Identifier  ExFiles\Box 158\4\  scan0006
Date  22th May 1919
  
R.R. 285 n (200 T) (S.F. 673, 22-5-19) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2376.
X.3733
To. [Redacted]
From Bn.{W.O. Bentley / Mr Barrington}
Copy to [Redacted]
[Redacted]
[Redacted]
Ck.{Mr Clark}
X.3733 Re Pinning of Valve Tappets. X.3644
BmH/WHC1219.
With reference to H7/CS1219, before writing Mr. Elliott on this matter I satisfied myself that the general opinion at Derby leaned rather strongly toward retaining the present design of tappet and improving the manufacture of it. It is possible, of course, that the present cam contour giving rapid lift calls for such accuracy in manufacture of tappets etc. as cannot be attained with reason, but the Production Dept are satisfied after investigation that the present standard of accuracy can be considerably improved.
We will fit pinned tappets to the 10,000 miles Car as you instruct.
Bn.{W.O. Bentley / Mr Barrington}
[Signature]
  
  


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