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 clutch splines, axle backlash, and gearbox chunking issues on a 30-EX model.
| Identifier | ExFiles\Box 136\1\ scan0162 | |
| Date | 18th October 1935 | |
| -3- Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}25/KW.18.10.35. CAR | TEST | RESULT (14) 30-EX | When clutch splines had .027 and axle pinion .210 backlash at 1.875 radius. | Bad chunking audible, also in top gear (15) 30-EX | Original box, slack everywhere; rear wheels jacked up and chunking produced by use of hand brake. Applying a brake to the 2nd speed cone. | Noticeable improvement Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||