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).
Test averages, breakages, and a summary of dismantling conditions.
| Identifier | ExFiles\Box 43\1\ Scan056 | |
| Date | 19th August 1924 | |
| -7- EXPERIMENTAL REPORT. Expl. No. REF: Hs{Lord Ernest Hives - Chair}3/LG19.8.24. a layer of carbon which was marking the cylinder walls. We consider that the short time it took the rings to become stuck, is a point for urgent investigation. AVERAGES FOR THE TEST - ETC. Oil consumption 5.3 pts.hr. Bed test. " " 7.9 " " Hangar test. Petrol " 181 " " Bed test. " " 181 " " Hangar test. Full power before going on to Hangar - 362 B.HP. " " after 100 hrs. - 330 B.HP. Oil used - Castrol. Petrol used - Redline. Plugs used - Lodge KN.{D. G. McKechnie - Sales}9 on Hangar and 10 hrs. on bed. K.L.G. F.12 for 40 hrs. on Bed. Complete failures - nil. BREAKAGES SUMMARISED. 2 Valve springs - 1 inner and outlet - both on inlet valves. Leaves of 5 Magnetos Drives. 3 Magnetos (Watford) winding broken down. SUMMARY OF DISMANTLING. CONDITION.. Crankcases. Very good. Crankshaft. Very good. Bearings. The white metal on two of the brgs. cracked - majority of liners chipped. Connecting Rods. Very good. Cylinders. One or two scored slightly. Valves. See report on Valves and seatings. Camshaft cases, & Camshaft. Very good. Rockers and rollers. Very good - one roller scored. contd:- | ||