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 Oil Pump Gears, specifically showing oil holes, for Super-Sports models.
| Identifier | ExFiles\Box 149\2\ scan0029 | |
| Date | 12th November 1928 | |
| DRIVING GEAR. 3.100 -25 .540 CTR. ±10 .098 DIA (RIGHT THRO'). .100 +.20 .500 DIA. +3 +0 .062 DIA. .200 CTR. ±10 .375 CTR. ±10 .062 DIA. SWEAT MILD STEEL DISC (.075 THICK) IN POSITION V486. DRIVEN GEAR. .098 DIA. (RIGHT THRO'). .540 CTR. ±10 MODIFICATION TO OIL PUMP GEARS (OIL HOLES). (SUPER - SPORTS). Stamp Text: JWR 12-11-28 | ||