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).
Noisy dynamo coupling for a 4 1/4 litre Bentley, detailing issues with machining and component dimensions.
| Identifier | ExFiles\Box 130\2\ scan0026 | |
| Date | 6th July 1936 | |
| To Rm.{William Robotham - Chief Engineer} c. to E.{Mr Elliott - Chief Engineer} c. to By.{R.W. Bailey - Chief Engineer} X1113 Kingsbury. 6th July, 1936. Noisy Dynamo Coupling - 4 1/4 litre Bentley. B-31-GP. 980 miles. This is only the second case they have had here and as it is a new type drive, may require attention, especially in view of the short mileage (980) in this case and the few now on the road. The machining inside the aluminium boss was very rough and this added to the fact that the rubbers were loose in the first place is probably the cause. When measured up, the boss inside diameter was .892", whereas the largest average diameter of the rubber was .877" and the average smallest diameter of the rubber was .862". This gives a play of .030". There is also no chamfer on the aluminium to enable a good fitting rubber to be fitted. Hs{Lord Ernest Hives - Chair}/J.B.Dixon. | ||