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 chassis part, proposing a pilot jet to replace the primer for improved engine starting.
| Identifier | ExFiles\Box 74\2\ scan0080 | |
| Date | 26th June 1922 | |
| R R 755 (5 H) (S H 268, 29-9-20) G 2954 X4387 STANDARDISATION OF CHASSIS PARTS. 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. Fitted to 6.EX 3000 " Fitted to Riveria trials cars 1922. Fitted as standard to all R-R cars produced at SPRINGFIELD U.S.A. [Box on right] X No.4387B 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.........£......... 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. Storekeeper advised re above: Storekeeper's Signature. Signature of Mr. De LOOZE that above is correct. My. 7.7.22. SIGNATURES | DATE | REMARKS Mr. JOHNSON Mr. B. Johnson. | 24.7.22 | Agreed, if Priming Device parts in stock are used up first. B.J. Mr. ROYCE | | ditto C Mr. WORMALD | 21.7.22 | Agreed. Wor.{Arthur Wormald - General Works Manager} | R's remarks :- Mr. BARRINGTON (struck through) Mr. Rowledge. | 26.6.22 | Agreed. Rg.{Mr Rowledge} | Agreed, adopt at once. FHR. Cannot see that this should cost more than primer and its fittings. FHR. Mr. DAY | 28.6.22 | Agreed. Da.{Bernard Day - Chassis Design} Mr. BAILEY | 28.6.22 | Agreed. BY.{R.W. Bailey - Chief Engineer} Mr. PLATFORD | 25.6.22 | Agreed. EP.{G. Eric Platford - Chief Quality Engineer} Mr. NORTHEY EWT. for R.R. Inc. | 28.6.22 | Agreed. PN.{Mr Northey} [Stamped Number in Center] 1804 | ||