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).
Modification to dispense with the oil cooler on Phantom III cars fitted with aluminium/tin big end bearings.
| Identifier | ExFiles\Box 171\5\ img045 | |
| Date | 1st June 1938 | |
| RR 755 (10M) (49968) 19/10/37 C.E.Co. COMPLETED 22.9.38. PHANTOM III STANDARDISATION OF PARTS Description: MODIFICATION TO DISPENSE WITH OIL COOLER ON PHANTOM III CARS FITTED WITH ALUMINIUM/TIN BIG END BEARINGS. Purpose: To avoid possibility of oil cooler failure and because cooler is no longer necessitated. Date Issued: 1.6.38. Sheet No.: P.31. Drg. No.: NEW COVER E.89263 L.O.P.: New Type E.89264. Brief Report and Remarks Effect of oil cooler on oil temperatures has been tested and reported on in Rm{William Robotham - Chief Engineer}/Std.2/MH.{M. Huckerby}25.5.38. Test bed endurance has been successfully completed with oil inlet to bearings at 130°C temperature. When recommended for Introduction: IMMEDIATELY. Report References: Rm{William Robotham - Chief Engineer}/Std.2/MH.{M. Huckerby}25.5.38. By Rm{William Robotham - Chief Engineer} Da{Bernard Day - Chassis Design} Mx{John H Maddocks - Chief Proving Officer} By.{R.W. Bailey - Chief Engineer} Rm.{William Robotham - Chief Engineer} Da.{Bernard Day - Chassis Design} Mx.{John H Maddocks - Chief Proving Officer} Old Parts Material: £1.9.6. Labour: £0.4.9. Burden: £0.8.4. Total: £2.2.7. New Parts Material: £0.0.9. Labour: £0.1.3. Burden: £0.2.2. Total: £0.4.2. Increase/Decrease in Cost £ 1.18. 5d. GRL 29/6/38 Cost of Tools £ Production Position and Comments Oil cooler has been omitted from chassis subsequent to 80 in 'D' series, thus effecting a saving of £1.18.5d. per chassis without additional tool charges. It is understood that coolers are also to be removed from all chassis fitted with Hall's metal Con.rod Brgs. (2nd. in 'D' to 81 in 'D' inclusive) and the charge for such retrospective action will be £2.8.8d. ea. on the 80 cars involved or a total of £195.0.0d. In accordance with memo. Rm{William Robotham - Chief Engineer}/Std.4/MH.{M. Huckerby}12.8.38. coolers removed will be absorbed as replacements on 'C' series chassis, but the 80 surplus sets of oil pipes value £36.0.0d. will, however, be rendered scrap. In addition works stock of unions etc. surplus to 81 in 'D' value £28.0.0d. will also be rendered scrap. The total cost of the above scrap material and retrospective action is £259.0.0d which will be recovered after producing 135 chassis. Authorisation to Proceed: In PTO. Signature Date Sg.{Arthur F. Sidgreaves - MD} 20/9/38 Hs.{Lord Ernest Hives - Chair} 21/9/38 Introduce on the 2nd Chassis in D Series. | ||