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).
Inquiry into potential exhaust valve issues with the Bentley 4-Litre 6-Cylinder engine, referencing Leyland's prior experience.
| Identifier | ExFiles\Box 131\2\ scan0218 | |
| Date | 5th July 1938 | |
| W/K.{Mr Kilner} Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} from Rm.{William Robotham - Chief Engineer} 1113 Rm{William Robotham - Chief Engineer}5/R.5.7.38. BENTLEY 4-LITRE 6-CYL. ENGINE. In view of the fact that we are taking an interest in the overhead inlet exhaust valve engine, we should be very interested to know whether any particular snags have cropped up on the 4-litre Bentley engine of this type, of which we understand about 60 were sold to the public. Leylands made a number of this type of engine experimentally, but abandoned it because of exhaust valve trouble. Has there been any particular exhaust valve trouble on the Bentley unit ? Rm.{William Robotham - Chief Engineer} | ||