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).
High water temperatures due to altered radiator shutter or thermostat settings and considering a more efficient radiator.
| Identifier | ExFiles\Box 107\1\ scan0351 | |
| Date | 19th December 1935 | |
| To Sg.{Arthur F. Sidgreaves - MD} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} C. TO Wor.{Arthur Wormald - General Works Manager} E.{Mr Elliott - Chief Engineer} X500 Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}26/KW.19.12.35. GLG-5. Replying to Sg.{Arthur F. Sidgreaves - MD}4/E.17.12.35. I think that the higher water temperatures which you are recording on this car must be due to the fact that we have altered the radiator shutter or thermostat setting when we carried out work on the engine unit. Actually, if the radiator shutters are opened fully, you will find that the water temperature is something below 60° in the present cold weather. We have considered the cooling question on the big bore 20/25, and I do not anticipate any trouble with the present standard radiator. We have, however, a more efficient radiator which ran the last 15,000 miles on 21-G-IV, of the Harrison Mark V type, and we propose to bring this in as soon as we can without any scrap. I doubt, however, if this is really necessary, except that it saves a little weight. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||