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).
Test report on the condition of 28-EX engine valves and hydraulic plungers after standing overnight.
| Identifier | ExFiles\Box 17\6\ Scan342 | |
| Date | 25th March 1935 | |
| Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux}6/KW.25.3.35. 28-EX. Test of condition of valves after standing all night, outside temperature moderately cold, 13°C. hydraulic plungers in operation. The engine had balanced up in the following order :- I E E I I E E I I E E I 2 4 5 6 8 10 11 12 All valves free 7 9 Free after turning eng. 1 3 " " " " Engine started up in 5 seconds, tappets quiet. Hs{Lord Ernest Hives - Chair}/G.W.Hancock. | ||