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 of chassis parts for connecting rods with loose big end bearings.
| Identifier | ExFiles\Box 103\2\ scan0160 | |
| Date | 18th May 1926 | |
| RR 788 (10H) (DB{Donald Bastow - Suspensions}130 12-9-24) MS 301225 STANDARDISATION of CHASSIS PARTS. Handwritten at top: X5030 Completed 19.5.26 Description of Parts: CONNECTING RODS WITH LOOSE BIG END BEARINGS. Origin: To improve reliability. Experimental Test Report. We have a fair amount of trouble with connecting rod bearings on 20 HP. Test bench tests and road tests have proved that the loose bushes are more reliable. Road Test Report. Run 10,000 miles in France on 10-G-111. This car was run at very high speeds. Fitted to 9-G-111 - run 1500 miles. Weight of Old Part. Cost of Old Part. £ 8. 10. 0 Weight of New Part. Cost of New Part. £ 9. 12. 0 Difference per Car. Difference per Car. £ 1. 2. 0 increase. Signature of Mr. De LOOZE that above is correct. My/Rb.{R. Bowen} 21.5.26. APPROVALS TABLE: SIGNATURES, DATE, REMARKS [illegible signature] C.W.B., 19.5.26, Agreed. CWB. MR. B. JOHNSON, 27.5.26, Agreed. MR. ROYCE, 21.5.26, Agreed. FHR! But not good title - "Bushed big ends". MR. WORMALD, 19.5.26, Agreed. Wor.{Arthur Wormald - General Works Manager} MR. ROWLEDGE, 18.5.26, Agreed. Rg.{Mr Rowledge} MR. DAY, 20.5.26, Agreed. Da.{Bernard Day - Chassis Design} MR. BAILEY, 19.5.26, Agreed. BY.{R.W. Bailey - Chief Engineer} MR. PLATFORD, 19.5.26, Agreed. EP.{G. Eric Platford - Chief Quality Engineer} MR. ELLIOTT, 21.5.26, Agreed. W. MR. NORTHEY, 20.5.26, Agreed. PN.{Mr Northey} MR. HIVES, 26.5.26, Agreed. E.{Mr Elliott - Chief Engineer} Hives. RIGHT HAND BOX: X No. X5030 Drawing No. Part List. A Scrap and replace at all costs, including Chassis already delivered to customers. 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. [Option D is ticked] Cost of Parts in Works which will be scrapped if commenced on:- Series.........£....... Series.........£....... Series.........£....... STAMPS: F.R. 20. H.P. CHASSIS RECD 27 MAY 1926 | ||