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).
Proposal to fit heavier exhaust valves and stronger tappet springs to address issues with valve stretching.
| Identifier | ExFiles\Box 169\1\ img218 | |
| Date | 12th September 1932 | |
| x4663. RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson}2/KT.12.9.32. We are proposing to fit the heavier exhaust valves to standard cars to overcome complaints of valves stretching. We wish to try out these valves with the standard valve springs, and stronger tappet springs on 25-EX. Will you therefore, please prepare and fit to the cylinder head, one set of E.83094 exhaust valve guides, exhaust valves to LeC.2935, and tappet springs to Hs.{Lord Ernest Hives - Chair}502, as on the last 10,000 miles test on 19-EX. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||