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).
Drawing detailing modifications to S.S. type valve guides, including the use of asbestos packings.
| Identifier | ExFiles\Box 17\6\ Scan104 | |
| Date | 21th August 1929 | |
| File counter valve guides MODIFICATIONS TO VALVE GUIDES — S.S. Fg 23 ASBESTOS PACKINGS SUPPLIED. ALLOW .078" HERE INLET. 1.200" .075 .050 20° EXHAUST. 3 INLET + 3 EXHAUST OFF. STAMP: RR AUG 1929 JESSE F V.m. 21/8/29. | ||