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).
Recommending the supply of a special cleaner with K.L.G. M4 type spark plugs.
| Identifier | ExFiles\Box 58\3\ Scan008 | |
| Date | 23th September 1919 | |
| To EP.{G. Eric Platford - Chief Quality Engineer} from EH. c. to EH c. to EY c. to Da.{Bernard Day - Chassis Design} X1918 l. EH9/LG23.9.19. RE SPARKING PLUGS. We do not think we are taking full advantage of the K.L.G. M4 type of plug. One of the advantages of that type of plug is that they can supply for it a little sheet metal cleaner. We have found that out of a dozen plugs, which were returned to us by the Repair Dept. as being faulty, 11 of them were made equal to new plugs by using the special cleaner. We believe K.L.G. people charge sixpence for this cleaner. We recommend that with every car we send away with M4 type plugs fitted, should have supplied with it one of these cleaners. EH. | ||