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).
Recommendation to standardise the short connecting rods for the 40/50 chassis.
| Identifier | ExFiles\Box 35\2\ scan 061 | |
| Date | 7th April 1919 | |
| R.R. 235a (500 T) (S.D. 40s. 28-4-17.) Bm. 2/156/13. To R.{Sir Henry Royce} from EH. c. to CJ. c. to E.{Mr Elliott - Chief Engineer} c. to By.{R.W. Bailey - Chief Engineer} c. to Ba. X 3400 EH4/LG/7.4.19. RE SHORT CONNECTING RODS FOR 40/50 CHASSIS X.3400D. X.3429. We recommend that the Short Connecting Rods for the chassis should be standardised. We are satisfied now that these rods do not make any difference as regards the feel of the engine. 49-GB fitted with these rods is running very very nicely and remarkably smoothly. Capt. Hallam and Mr. Haldenby have had this car out and agree that the engine is very nice. We do not claim that we have removed all traces of piston knocks but we have every confidence that we can satisfy all but the fastidious customers. This is the class of customer we have complaints from even with the cast-iron pistons as regards knocks. EH. | ||