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).
Testing different spark plugs to improve the slow running of a Bentley engine.
| Identifier | ExFiles\Box 3\4\ 04-page265 | |
| Date | 1st August 1933 | |
| XVRR24 Files. ----- 1.8.33. ----- SLOW RUNNING - BENTLEY. ----------------------- We have tried the following plugs :- Lodge K.335 Lodge Aero K.30G. There is no improvement in the slow running. The KLG. longest reach plug, K.734, gives the steadiest slow running, and with the engine tuned up would be very good. JWH. | ||