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 a pilot jet to replace the primer, operated from the instrument board.
| Identifier | ExFiles\Box 171\3\ img113 | |
| Date | 26th June 1922 | |
| R R 748 (6 H) IS H 268. 10-9-20) G 2944 ORIGINAL COMPLETED 29.7.22. STANDARDISATION of CHASSIS PARTS. Date 26.6.22. X No.4387/B Description of Parts. Pilot Jet to replace primer - to be operated from instrument board. Origin. To improve starting. Experimental Test Report. We have had pilot jets fitted to cars for twelve months. The advantages with the pilot jet are - (1) No pumping required. (2) Engine can be kept running when started up cold. Road Test Report. Fitted to 1.EX 6000 miles. " " 6.EX 3000 " Fitted to Riveria trials cars 1922. Fitted as standard to all R-R cars produced at Springfield U.S.A. 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. Cost of Parts in Works which will be scrapped if commenced on :- Series......... £......... Series......... £......... Series......... £......... See My Jul/2/1/29A/17/7/22 Storekeeper advised re above: Storekeeper's Signature. Signature of Exp. Dept. that above is correct. E.{Mr Elliott - Chief Engineer} Hives. Weight of Old Part. Cost of Old Part Fitted to chassis £3. 1. 10 Weight of New Part. Cost of New Part Fitted to chassis £4. 17. 10 Difference per Car. Difference per Car Fitted to chassis £1. 16. 0 Increase. Signature of Mr. De LOOZE that above is correct. My. 7.7.22. SIGNATURES, DATE, REMARKS Mr. JOHNSON, 24.7.22, ditto - CJ. Mr. E.{Mr Elliott - Chief Engineer} Johnson, 24.7.22, Agreed, if priming device parts in stock are used up first. BJ. Mr. ROYCE, 25.7.22, Agreed. FHR cannot see that this should cost more. Mr. WORMALD, 21.7.22, Agreed. Wor.{Arthur Wormald - General Works Manager} Mr. BARRINGTON, 26.6.22, Agreed. Rs.{Sir Henry Royce's Secretary} Mr. Rowledge., 28.6.22, Agreed. Da.{Bernard Day - Chassis Design} Mr. DAY, 28.6.22, Agreed. BY.{R.W. Bailey - Chief Engineer} Mr. BAILEY, 28.6.22, Agreed. EP.{G. Eric Platford - Chief Quality Engineer} Mr. PLATFORD, 25.5.22, Agreed. EP.{G. Eric Platford - Chief Quality Engineer} Mr. NORTHEY, 28.6.22, Agreed. PN.{Mr Northey} EWT for R.R. Inc. | ||