List of engine components and test specifications for a Phantom III unit.
| Identifier | ExFiles\Box 155\2\ scan0059 | |
| Date | 27th February 1937 | |
| -2- (3) Midland cylinder block. (4) 45° angle timing gears. (5) L.5. material crankcase. (6) Special valves and springs. S.65 and S/SLV. (std) inlet valves. S/SLV. and KE.965 (std) Exhaust valves. 1 - 4 Rm. {William Robotham - Chief Engineer} 260 (Tempered Spring Co.) springs. 5 - 8 E.88773 (Ph.III. type close coiled made by R.R.) 9 - 12 EB.3256 (R.R. copy of Rm. {William Robotham - Chief Engineer} 260) All springs in Swedish wire. ---------- Following usual running in and power curve etc., check springs for surge by Rotorscope. 1 hour Endurance at full throttle on Ethyl. 1 " " " " 1/4 " . If O.K. on completion of above return to Shop for inspection. No.5.BED. Phantom III. No.3. This unit received on test has following special parts - Nos. 2, 4 & 6 big end Z.3. W/M. " 1,3 & 5 " " (R.R. W/M. std.) Std. W/M. mains. New cylinder liners with rubber sealing rings at top LeC.5415. Camshaft LeC.5319 for running without silent tappet action. Nos.1, 2, & 3 tappet blocks in I/C. No.4. " " plated by H.A.X. Nos. 5 & 6 " " std. Fescol. ------------ continued | ||
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).