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).
Standardisation document for modified connecting rod bearings.
| Identifier | ExFiles\Box 65\4\ scan0284 | |
| Date | 10th December 1925 | |
| Hs{Lord Ernest Hives - Chair} RR 755 (10H) (SL391 2-11-23) MP 281297 X. 8030. COMPLETED 22.12.25 STANDARDISATION of CHASSIS PARTS. Date 10.12.25 Description of Parts. MODIFIED CONNECTING ROD BEARINGS. Origin. To increase reliability. Experimental Test Report. The present Phantom rods have the whitemetal direct to the rods. The proposed rods make use of loose M.S. shell white-metal bearings. Test bench results show these to be a definite improvement. BJ Road Test Report. Run 10,000 miles on 8-EX. Examined and found in excellent condition. Previous tests we have always had trouble with connecting rod bearings. Fitted to 11-EX and 98-NK. Run total of 7500 miles. No troubles. Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part. £ 22. 1. 6d. Cost of New Part. £ 24. 1. 9d. Difference per Car. £ 2. 0. 3d. increase. Signature of Mr. De LOOZE that above is correct. My/Rns. 16.12.25 Box Section: X No. 8030 Drawing No. Part List 22 D.S. A Scrap and replace at all costs, including Chassis already delivered to customers. [Stamped CANCELLED] B Scrap and replace on Chassis in works. C Scrap present stock and replace on all Chassis not yet handed to test. D Use existing stock Alteration effective on future Chassis Cost of Parts in Works which will be scrapped if commenced on:- Series..........£.......... Series..........£.......... Series..........£.......... SIGNATURES | DATE | REMARKS MR. JOHNSON | 22.XII | agreed J MR. B. JOHNSON | 22.12 | agreed J MR. ROYCE | 18.12.25 | Agreed. | FHR. MR. WORMALD | 10.12.25 | Agreed. | Wor.{Arthur Wormald - General Works Manager} MR. ROWLEDGE | 11.12.25 | Agreed. | Rg.{Mr Rowledge} MR. DAY | 12.12.25 | Agreed. | Da.{Bernard Day - Chassis Design} MR. BAILEY | 10.12.25 | Agreed. | BY.{R.W. Bailey - Chief Engineer} MR. PLATFORD | 10.12.25 | Agreed. | EP.{G. Eric Platford - Chief Quality Engineer} MR. ELLIOTT | 14.12.25 | Agreed. | E.{Mr Elliott - Chief Engineer} MR. NORTHEY | 11.12.25 | Agreed. | PN.{Mr Northey} MR. HIVES | 21.12.25 | Agreed. | E Hives. | ||