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).
Specification for silent tappets fitted on engine 28-EX.
| Identifier | ExFiles\Box 11\5\ 05-page147 | |
| Date | 10th August 1934 | |
| 10.8.34. SPECIFICATION OF SILENT TAPPETS AT PRESENT FITTED ON 28-EX. Cylinder head to E.84568. Central oil feed only. Exhaust) Nos. 2, 6, & 10 Stellited Ex.15162 Inserts NMC. Valves.) Nos. 3, 7, & 11 Standard E.85640. Inlet Valves Ex.15120. Lightened type with drilled stems. E.85666 Valve springs. LEC.3960 Scheme to prevent valves from dropping into cylinder head. E.84407 Rocker Shaft Copper deposited. E.84413/4. Cast iron eccentrics. Hs.{Lord Ernest Hives - Chair}1360 Spacing springs. E.85552/3/4/5 Plunger casings with metering plugs to Hs.{Lord Ernest Hives - Chair}1470. Hs.{Lord Ernest Hives - Chair}1471. Rocker bushes. LEC.3886. Poppet valve plungers. Standard Valve Spring E.81550. | ||