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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).
Chart showing the dimensions of a Chromium Plated Cylinder Liner bore when new and after 53 hours of running.

Identifier  ExFiles\Box 133\1\  scan0070
Date  15th April 1936
  
KES. S/CYL. UNIT (Nº XT BLOCK) ①
E.40738. C.I. LINER
CHROMIUM PLATED IN BORE.
CHART SHOWING DIMENSIONS OF C.I. BORE
WHEN NEW AND AFTER 53 Hrs. RUNNING
FORMATION OF LIP AT TOP OF 1ST COMP. RING STROKE. (EXTENT .00325 ON DIA)
DIMENSIONS ALONG BORE
RADIAL POSITIONS: WHEN MEASURED.
1, 2, 3, 4
A: NEW: 4.9998, 4.9987, 4.998, 4.9994
A: AFTER 53 HRS RUNNING: 5.0015, 5.0027, 5.0003, 5.001
A: VARIATION: +.0017, +.004, +.0023, +.0016
B: NEW: 4.998, 4.9987, 4.9986, 4.9994
B: AFTER 53 HRS RUNNING: 5.0005, 5.0005, 4.9973, 5.0013
B: VARIATION: +.0025, +.0018, -.0013, +.0019
C: NEW: 4.9947, 4.9978, 4.9985, 4.9996
C: AFTER 53 HRS RUNNING: 4.992, 4.9963, 4.997, 5.0018
C: VARIATION: -.0027, -.0015, -.0015, +.0022
D: NEW: 4.9983, 4.9985, 4.998, 4.9988
D: AFTER 53 HRS RUNNING: 4.9985, 4.998, 4.998, 5.0007
D: VARIATION: +.0002, -.0005, NIL, +.0019
DIAGRAM LABELS: CENTRE, GLAND, EXH. SIDE, INLET SIDE, A, B, C, D
NOTE!
+ = INCREASE ON ORIGINAL DIA.
- = DECREASE ON ORIGINAL DIA.
ROLLS-ROYCE, LTD.
PRINT ROOM
-1 JUL 1936
DERBY.
15/4/36
  
  


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