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).
Modifications to the clutch to reduce over-run rattle and an investigation into booming on the 3 1/2 Litre Bentley.
| Identifier | ExFiles\Box 88\2\ scan0007 | |
| Date | 26th October 1933 | |
| To Bn.{W.O. Bentley / Mr Barrington} From Hs.{Lord Ernest Hives - Chair} c. to G.{Mr Griffiths - Chief Accountant / Mr Gnapp} c. to Wor.{Arthur Wormald - General Works Manager} c. to Mx.{John H Maddocks - Chief Proving Officer} Hs.{Lord Ernest Hives - Chair}2/MJ.26.10.33. Re. 3 1/2 Litre Bentley. We know that several of the Trials cars you are running suffer from the over-run rattle or vibration. We believe by altering the setting of the spring drive in the clutch we can reduce this considerably. We should therefore be glad if you could arrange to let us have your worst car so that we can carry this out. If you bring it to Derby one day you should be able to take it back the next. For preference we would like you to bring the Saloon car. We are still concerned with the amount of booming on the Saloon car and we would just like to have a chance of comparing your Trials car for this feature. Hs.{Lord Ernest Hives - Chair} | ||