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).
Road test report on vehicle I4-EX from France, detailing performance, issues, and adjustments.
| Identifier | ExFiles\Box 72\2\ scan0267 | |
| Date | 25th February 1928 | |
| X8992 Restaurant-Octobon., Le-Canadel. Par-Le-Lavandou. (Var) France. 25.2.28 Mr.Hives. from Dodd. All going well at Le-Canadel, I4-EX continues to give every satisfaction. We have altered our ignitions to 8° BTDC. fully advance position on the quadrant, this greatly improves the engine for detonations, and is smoother for same. We have not experienced any trouble with engine feet, and our clearance at the clutch coupling remains settled, as after the first 1100 miles. Magneto(M&B) is very noisy, this has become gradually worse since leaving Derby. Brakes are very good, front squeak when first applied, no adjustment has been necessary to either foot or hand brake. We find that the most comfortable riding over these rough roads is obtained with the tyre pressures at 30.lbs sq inch Steering is very good at this, and is not in any way effected. Total-Mileage----4,587. D.{John DeLooze - Company Secretary} J.{Mr Johnson W.M.} Dodd. | ||