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).
Engine running-in procedures and full load power tests.
| Identifier | ExFiles\Box 69\4\ scan0275 | |
| Date | 25th September 1924 | |
| R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. -2- EXPERIMENTAL REPORT. Expl. No. REF: Hs{Lord Ernest Hives - Chair}/ACL/LG6.2.25. The jet could be so proportioned that the cylinders would be getting a steady supply & and this would be the same for each engine. An arrangement of this type would prevent fouling of the carburetter which results when the usual method of injection by a syringe through the carburetter is employed. After each hours' run during the 'running in' process the engine should be stopped down and tested for freeness by pulling over with the starting handle. POWER TESTS. The following full load tests should be taken :- 10 mins. at 500 r.p.m. 10 " " 750 " 10 " " 1000 " 10 " " 1250 " 15 " " 1500 " 10 " " 1750 " 10 " " 2000 " 5 " " 2250 " 5 " " 2500 " During these tests no auxiliary oil should be fed to the cylinders. The cylinder bores should be inspected for lubrication and reported upon. The engine should turn quite freely by means of the starting handle. The weakest maintained position of carburation should not vary more than ± 2 notches from centre of control. For carburetter setting see report on EAC. Carburetter which has already been sent. (Average power and consumption curves are attached). contd :- | ||