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).
Treating engine crankcases and sumps, comparing cellulose paint to linseed oil.
| Identifier | ExFiles\Box 142\4\ scan0114 | |
| Date | 18th October 1938 | |
| 1202 also 1260 To RHC.{R. H. Coverley - Production Engineer} from Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} c. By.{R.W. Bailey - Chief Engineer} c. Hs.{Lord Ernest Hives - Chair} Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}7/MH.{M. Huckerby}18.10.38. Regarding the suggestion in RHC{R. H. Coverley - Production Engineer}/SB.{Mr Bull/Mr Bannister}1/MC.6.10.38 of spraying with cellulose, one coat against the present two coats of linseed oil purely for economy we would pass the following comments. (1) We have no experience of cellulosing of alum as to whether it would adhere or peel off. Consider that long service would be necessary to prove point. (2) On the experience of Leylands, we have started off our B.60 engine by coating with cellulose base paint as per RHC{R. H. Coverley - Production Engineer}'s suggestion. They say that it is far more necessary to treat iron than alum. (3) Leylands do not treat the internal of their alum crankcase as they find it is not necessary, therefore in order to obtain the maximum saving why not try a batch of crankcases untreated ? Our Aero people do not treat the inside of their crankcases, on the other hand we realise that they pay a lot of attention to fettling etc. (4) Leylands paint the sump with a grey primer paint as a guard against porosity. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||