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).
List of tested but non-standardized parts with notes on their performance.
| Identifier | ExFiles\Box 83\2\ scan0075 | |
| Date | 12th June 1937 | |
| 6.B.IV. -3- 12.6.37. The following parts were run, but not standardised and have given results available for future reference. Reference. Description. Notes. EB.2704. Connecting Rods with big end Satisfactory on this car bearings in A.C.S.S. & A.C.G.S. but material found to be inconsistent in silicon coming to the surface. Ex.23305. Inlet Valves in S.65. Satisfactory. Further mileage required before standardising. EB.2970. Exhaust Valves in S/SLV. Test spoiled by faulty cylinder head. EB.175. Valve Springs produced in Samples for trial and American low carbon wire in comparison. U.S.A. No trouble. E.87984 Tecalemit pressure oil filter. Standardisation sheet Lec.4692. rejected. GB.2100. Ventilation scheme for Clutch. Run to gain experience. Additional cost does not justify standardisation. GB.2100. Extra bearing area for lugs Satisfactory. Will be in clutch. available for use in case of serious trouble in service. Up to the present trouble has only occurred on endurance running on test beds. GB.2100. Modified cross cushion plate Has not shown itself to for clutch. be superior to present standard plate, hence no further action will be taken. | ||