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).
Radiator performance, potential failures, and the effects of anti-freeze.
| Identifier | ExFiles\Box 66a\4\ scan0285 | |
| Date | 9th September 1929 guessed | |
| -2- sulphuric acid in the radiator one might have expected this sort of damage, although this set would not produce the blocking up of the top row of tubes, where apparently the deposit takes place quickest owing to the heat being greatest at this point. Oddly enough the trouble in this case does not appear to be contributed to by oil from the pump. I am sure you will feel as greatly concerned as we are over the matter, and the question arises as to :- 1. Whether we are justified in allowing so small a water-space in the radiator. 2. Whether it is of first importance that the water should never be allowed to boil, by having automatic thermostatic control of shutters. 3. Whether the metal now used for the drawn tubes is an alloy sufficiently capable of withstanding the inevitable corrosion influence which from time to time will find its way into the radiators. With regard to the possible bad influence which certain types of anti-freezing mixtures may have, surely we need not go further than to ask America what has been found best with the conditions which are more or less normal requiring some form of anti-freezing mixtures in all cars most of the time during the winter. FH. | ||