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).
Photograph and results of a piston scuffing test.
| Identifier | ExFiles\Box 107\2\ scan0179 | |
| Date | 5th April 1938 guessed | |
| 5 PISTON SCUFFING TESTS. STANDARD E.60632 PISTON (NOT TIN-PLATED). E.60820 COMPRESSION RING. E.61123 "L" SECTION RING. E.60821 SCRAPER RING. PISTON "RUN IN" ON MOBILOIL "A" "DE LAVAL" OIL FOR TOTAL OF 7 HRS. & AFTERWARDS COMPLETING NORMAL SCUFFING TEST ON MOBILOIL ARCTIC OIL. PISTON SHOWS NO SIGNS OF SCUFFING. | ||