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).
Proposal to revert to the original method of fixing the spring in the air valve to improve reliability.
| Identifier | ExFiles\Box 5\4\ 04-page157 | |
| Date | 11th January 1926 | |
| STANDARDISATION of CHASSIS PARTS. COMPLETED 22.2.26. Date 11.1.26. X No. 5080 No. 3080 Description of Parts: FIXING OF SPRING IN AIR VALVE. Origin: To improve reliability. Experimental Test Report: It is propose to revert to the original fixing of the spring in the air valve to the top cover by means of a screw. The present arrangement of pushing the top coils into a recess is not reliable. Road Test Report: Fitted to 10-G-111 - run 1200 miles. Fitted to 10-EX - run 800 miles. A similar scheme was fitted to all Silver Ghost cars. Weight of Old Part: Weight of New Part: Difference per Car: Cost of Old Part: £ 1. 4d. 20 HP. £ 1. 10d. 40/50 HP. Cost of New Part: £ 2. 0d. 20 HP. £ 2. 5d. 40/50 HP. Difference per Car: £ 8d. 20 HP. increase. £ 7d. 40/50. Signature of Mr. De LOOZE that above is correct. Hy{Tom Haldenby - Plant Engineer}/Bms. 14.1.26. SIGNATURES, DATE, REMARKS MR. JOHNSON, 22.2.26, Agreed. G.Johnson. MR. B. JOHNSON, 22.2.26, Agreed. B.J. MR. ROYCE, 15.1.26, Agreed. FHR. MR. WORMALD, 11.1.26, Agreed. Wor.{Arthur Wormald - General Works Manager} MR. ROWLEDGE, 11.1.26, Agreed. Rg.{Mr Rowledge} MR. DAY, 13.1.26, Agreed. Da.{Bernard Day - Chassis Design} MR. BAILEY, 12.1.26, Agreed. BY.{R.W. Bailey - Chief Engineer} MR. PLATFORD, 13.1.26, Agreed, as spring clearance does not remain constant, carb. unreliable, advise retrospective action. EP.{G. Eric Platford - Chief Quality Engineer} MR. ELLIOTT, 17/1/26, Agreed OE MR. NORTHEY, 13.1.26, Agreed. PN.{Mr Northey} MR. HIVES, 19.2.26, Agreed. E.Hives. | ||