Rolls-Royce Archives
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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).
Instruction sheet detailing the contour specifications for an exhaust valve.

Identifier  ExFiles\Box 21\4\  Scan038
Date  25th February 1917
  
X3500
R.R. 26 10M Bks.) (SE 591 13-3-18). M.P. 189358
ROLLS-ROYCE LIMITED.
INSTRUCTIONS.
To Mr Hims
Feb. 25 1917
Order No.
Customer's No.
Delage. bar.
Contour of Valve
Exhaust.
camshaft
0° .585
5° .509
10° .595
15° .5105
20° .5105
25° .5105
30° .5105
35° .5105
40° .5105
45° .5105
50° .5115
55° .512
60° .5125
65° .5145
70° .5225
75° .5145
80° .5215
85° .533
90° .5495
95° .570
100° .596
105° .636
110° .6655
115° .703
120° .737
125° .758
130° .774
135° .7825
140° .785
145° .783
150° .777
155° .764
160° .747
165° .7225
170° .6945
175° .663
180° .627
185° .601
190° .573
195° .556
200° .541
205° .527
210° .5145
215° .515
220° .512
225° .5105
235° .5085
Signed
This Sheet must be filed on completion of the work.
  
  


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