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).
Oil cooler failures, types, replacement costs, and specific vehicle instances.
| Identifier | ExFiles\Box 131\5\ scan0098 | |
| Date | 17th August 1938 | |
| Fm. to Hs.{Lord Ernest Hives - Chair} (crossed out) File 114 Hd{Mr Hayward/Mr Huddy}/SB{Mr Bull/Mr Bannister}18/HR.17.8.38. STEADMAN - W Rulging (signature) re OIL COOLERS. Replying to Rm{William Robotham - Chief Engineer}/Std.14/JH.16.8.38:- (a) There have been three dip-soldered E.{Mr Elliott - Chief Engineer} type oil cooler failures since 10.5.38 - 3.CP-6., 3.CM-33 and 3.CM-39. There was also a failure on 3.BT{Capt. J. S. Burt - Engineer}-193, but we do not know whether this was a dip-soldered cooler as it was sent direct to the makers from N. (b) There has been one further F.{Mr Friese} type failure (3.AX-95) since that which occurred on 3.BU-26 on 10.5.38. (c) The total labour cost of changing 200 oil coolers on C. series will be £80, excluding any extra expense in dealing with 30 cars which are abroad. (Duty, freight and mechanics' expenses may cost another £40 for these cars abroad). Adding the cost of 200 coolers at 28/6d each (£285) we get a total figure of £405. This, of course, may be reduced by the cost of 100 surplus coolers, depending on whether the cost of these is disposed of against a Production account or the modification account. We would also add (d) We only know of 7 failures on C. series during the last eight months, one of which was an early hand-soldered cooler. Hd{Mr Hayward/Mr Huddy}/SBSS | ||