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).
Reporting on the performance of a new bakelite filler cap and radiator matrix for a 25/30 HP car's cooling system.
| Identifier | ExFiles\Box 108\1\ scan0380 | |
| Date | 21th February 1938 | |
| To. Rm.{William Robotham - Chief Engineer} o.{Mr Oldham} Rm{William Robotham - Chief Engineer}/Std. CHATEAUROUX. L/21.2.38. 600a 26.G.VI.- 25/30 HP. Cooling System. Replying to your memo Rm{William Robotham - Chief Engineer}/Std.5/MH.{M. Huckerby}18.2.38, we have fitted the new washer to the bakelite filler cap as instructed. So far, this cap has proved quite satisfactory and is notably easy to take on and off, and does not burn the hand like a metal cap. When the old matrix was removed after 3,428 miles of French running, no water had been added, and the level was just at the bottom of the filler spout. The new matrix has covered 800 miles to date and the water is 1/2" below the facing for the filler cap washer. We will not add any water unless essential, and report on the level from time to time. We have fitted the curved rubber bottom water pipe. We were able to get round the difficulty of the fouling you referred to, but noted that it requires modification. We are bearing in mind your request for the effect of the undershields on engine and gearbox oil and under bonnet air temperatures, and will carry out the necessary tests in due course. -------------- Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux} Ivan M.{Mr Moon / Mr Moore} Waller | ||