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).
Troubleshooting advice regarding shock absorber pressure and high running temperatures.
| Identifier | ExFiles\Box 11\3\ 03-page164 | |
| Date | 5th July 1930 | |
| G.{Mr Griffiths - Chief Accountant / Mr Gnapp} W. Hancock, Esq., Hotel De France, Chateauroux, Indre, FRANCE. To GWH.{George W. Hancock - Head Chateauroux} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}1/MJ.5.7.30. With reference to your note re. the shock absorbers building up a pressure internally when running. We should like you to try a breather in the shape of a small hole drilled in the filler cap. We think this may relieve the gland of the compressed air load without causing leaks. With reference to the high temperatures at which you are running. We believe you have got one of the new type fan belts on your car. If you have not, we have proved that the spring loaded Wittle fan belt will not drive the fan at at high speeds and at 60 M.P.H. we can reduce the top water temperature by 4½°C. by tightening up this fan belt shoc-a-bloc. Should you have a standard fan belt fitted, we should like you to try this belt and confirm our results. We also find that if the carburation is on the weak side the top water temperature rises at once and we can get 4° difference in top water temperature between running full strong and full weak. It occurs to us that with the poor French petrol that you are running, you may be running weak with a constant rise of outlet water temperature. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||