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).
Daily log of valve clearance measurements for a six-cylinder engine.
| Identifier | ExFiles\Box 11\3\ 03-page419 | |
| Date | 8th July 1931 | |
| 25-EX. VALVE CLEARANCE DAILY. Cylinders. Date | 1 | 2 | 3 | 4 | 5 | 6 | I | E | I | E | I | E | I | E | I | E | I | E 29/6/31 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 1/7/31 | .006 | No cl. re set .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | No cl. re set .006 | .006 | .006 2/7/31 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 3/7/31 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 4/7/31 | .006 | .004 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 | .006 5/7/31 | .006 | No cl re set .006 | .006 | .006 | .006 | .004 re set .006 | .006 | .004 re set .006 | .006 | .002 re set .004 | .006 | .006 7/7/31 | .006 | re set .006 | .004 | .006 | .006 | .006 | .006 | .004 | .004 | .006 | .004 | .006 8/7/31 | .005 | .001 re set .006 | .003 re set .006 | .005 | .006 | .005 | .006 | .003 re set .006 | .001 | .003 re set .005 | .005 | .005 Total clnce lost | .001 | .025 | .003 | .000 | .001 | .003 | .000 | .001 | .009 | .011 | .001 | .001 | ||