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 of water flow by deleting water holes between the cylinder block and head for a more even temperature rise.
| Identifier | ExFiles\Box 103\4\ scan0174 | |
| Date | 23th June 1936 | |
| AR 755A (SH) (63912. 17-6-34) BM. 3/1319/3. COMPLETED 14.7.36. 20/25 STANDARDISATION OF PARTS. Date 23.6.36. X No. 519 Drawing No. EB 2929 Part List Description of Parts. MODIFIED WATER FLOW OBTAINED BY DELETING WATER HOLES BETWEEN BLOCK & HEAD ON NOS. 1, 2 & 3 CYLINDERS. Origin. To give more even temperature rise across engine. Report of Experimental Test. 22-G-V has run 15,000 miles in France with these water holes deleted by tapping and plugging cylinder head. This method should be used on existing engines, and the modified block to EB.2929 with holes omitted should be introduced at the earliest possible moment. Weight of Old Part. Cost of Old Part. £ Weight of New Part. Cost of New Part. £ Difference per Car. Difference per Car. £ Negligible. Signature from Cost Dept. that above is correct. C/HB.{C. E. Harcombe} 22.6.36. Cost of Parts in Works which will be scrapped if commenced on:- Series..........£....... Series..........£....... Series..........£....... INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 10-7-36 | Agreedly WOR.{Arthur Wormald - General Works Manager} | | Wor{Arthur Wormald - General Works Manager} ill. C. | | Agreed C. RG.{Mr Rowledge} | | DA.{Bernard Day - Chassis Design} | 8.7.36. | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 30.6.36. | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 30.6.36. | Agreed EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 7.7.36. | Agreed E.{Mr Elliott - Chief Engineer} EN. | | SFT.{Mr Swift} | 30.6.36. | Agreed Sft.{Mr Swift} MX.{John H Maddocks - Chief Proving Officer} | 7.7.36. | Agreed Mx.{John H Maddocks - Chief Proving Officer} HS.{Lord Ernest Hives - Chair} | 23.6.36. | Agreed HS.{Lord Ernest Hives - Chair} [Stamp: 10 JUL 1936] | ||