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).
Amended engine timing instructions for F.11 & F.XII models due to issues with camshaft drive covers.
| Identifier | ExFiles\Box 33\4\ Scan110 | |
| Date | 1st May 1928 | |
| To RG.{Mr Rowledge} from Hs{Lord Ernest Hives - Chair}/VH. c.c. to BY/NW.{N. Walker - Patents} c.c. to EF. Handwritten: X1770 Hs{Lord Ernest Hives - Chair}/VH1/LG2. 5. 28. RR. F.11 & F.XII - ENGINE TIMING. Handwritten: X1770 / X4003 We have experienced some trouble on the test beds due to the telescopic covers of the camshaft drives not being properly secured. As it is anticipated that this may possibly be overlooked in service, we have amended the Timing Instructions given in Hs{Lord Ernest Hives - Chair}/VH1/LG24. 1. 23 accordingly. A further amendment has been <strikethrough>instructed</strikethrough> included, pointing out that the method instructed, is arranged to give the engine timing shewn in the timing diagrams previously issued. Hs{Lord Ernest Hives - Chair}/VH. Amended instructions attached. | ||