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).
Specification sheet listing engine and vehicle components and settings.
| Identifier | ExFiles\Box 155\2\ scan0132 | |
| Date | 30th June 1937 | |
| -4- Rm {William Robotham - Chief Engineer} /Swdl. {Len H. Swindell} 8/JH.30.6.37. Standard Rm. {William Robotham - Chief Engineer} 131 45° angle timing gears. Aerolite pistons (standard type) high pressure rings. Deturbulated cylinder head 6.4 : 1 - LeC.5022. Standard EB.2793 inlet valves S/SLV. - .0015 - .002 clearance. Silchrome X. EB.2794 exhaust valves (stellited) .0015" - .002". clearnace. Unchilled cylinder block 230 Brinell. Rm. {William Robotham - Chief Engineer} 260 valve springs 1 - 12. Delco Remy governor. 10" Borg & Beck clutch. LeC.4288 large capacity 22° oil pump (mod. bush). B.16. 5.B.IV. Spread centre case EX.18383 (not strengthened) Cylinder head deturbulated and recovered to std. comp. ratio 6.4 : 1 by machining .035" off face. Exhaust valves strengthened type EB.4970 (S/SLV. steel. (Rm. {William Robotham - Chief Engineer} 260 spring). Both inlet and exhaust are close clearance .0015" - .002. Delco ignition governor EX.B.22. Small carbs. and induction system. Oil grooves continuous in inter. mains. Aerolite pistons o.s. Palmetto water pump gland packing. Production B. & B. clutch. Long type of American plate, Thermoid facings. | ||