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).
Issues with porcelain cracking and a soft brass nut on a component.
| Identifier | ExFiles\Box 50\2\ Scan057 | |
| Date | 11th May 1921 guessed | |
| -2- There is also a tendency for ~~the~~ slight leakage to take place. 2. We have had two cases of the porcelain being cracked, i.e. the part of the porcelain which projects into the combustion chamber. In neither case, however, has this caused plug failure. 3. The brass nut for detaching the porcelain for cleaning purposes is very soft and is easily damaged unless the correct size box key is used. We find however that a box key which suits this nut is supplied in the spares (E.11904). EF. | ||