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).
Transmission knock, radiator water loss, and fan belt performance, concluding with a trip to Paris for exhaust repairs.
| Identifier | ExFiles\Box 11\3\ 03-page181 | |
| Date | 10th July 1930 guessed | |
| -2- to see whether this effects any improvement. The other feature is that a bad knock has developed in the transmission at low speeds when pulling hard, which we believe is coming from the gear box. It is felt very distinctly on the change speed mechanism and the hand brake lever. It is also audible. [handwritten] bad front spring squeaks have also developed. Water lost from the radiator: We have proved that the water lost from the radiator is being thrown out at medium speeds, with the radiator cap off, at 40 M.P.H. there is a constant stream of water from the filler cap until .750 gall. has been lost. The water then is not visible on the top of the radiator tubes. Re water temperatures. We have not been able to distinguish any reduction in the cooling of the water system with a correct setting of the fan belt, and with it choc-a-bloc. It is obvious that if the belt is definitely slack, high temperatures would be reached, but we do not find that in a 500 mile run the fan belt has stretched sufficiently to cause any slip. We agree that a positive rubber drive similar to what was run on 23EX is a better proposition. That belt was kept practically choc-a-bloc the whole of the time, as we found that if too much spring movement was allowed chattering ensued. I am now proceeding to Paris to effect repairs to the exhaust system, and to await your decision. G.W.H. | ||