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).
Letter from K.L.G. Sparking Plugs regarding the effect of modifying a spark plug's gap capacity and heat resistance.
| Identifier | ExFiles\Box 162\4\ img045 | |
| Date | 5th April 1934 | |
| K.L.G. Sparking Plugs Limited CONTINUATION NO. 1. DATE 5.4.34. Messrs. Rolls-Royce, Ltd. You will appreciate that this cutting away increases the gap capacity of the plug and will, therefore, tend to lower its heat resistance. This may show up on a bench test, but we think it is very unlikely that any adverse effect will be noted on the road. We are also returning the cleaned 765-A plug to which we have already referred. Yours faithfully, p.p. K.L.G. SPARKING PLUGS LIMITED. Director. | ||