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).
Engine modifications for chassis 1644 and the agreement to sell it.
| Identifier | ExFiles\Box 58\1\ Scan156 | |
| Date | 23th July 1926 | |
| To Sg.{Arthur F. Sidgreaves - MD} from Hs.{Lord Ernest Hives - Chair} c.c. to DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} c.c. to Wor.{Arthur Wormald - General Works Manager} X5900 Hsl/LG23.7.26. CHASSIS 1644. ------------------ The engine in this chassis is fitted with the following new parts :- (1) Connecting rods with detachable bushes. These have been standardised and will be fitted to the next series of 20 HP. cars. There is no reason therefore that these rods should be changed. A note has been made on the records for this chassis that these rods are fitted. (2) Pistons with 5 narrow rings instead of the present standard 3 narrow and one wide ring. These pistons have been standardised and will shortly be fitted to production cars. There is no reason therefore that these should be changed. (3) The crankshaft in this engine was lapped before fitting. This is an improved method of production and is being used on all crankshafts. We agree with the scheme that 1644 chassis should be sold and that a new 20 HP. chassis should be built when required to replace it. Hs.{Lord Ernest Hives - Chair} | ||