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).
The causes and remedies for excessive wear on right front tires, focusing on steering adjustments.
| Identifier | ExFiles\Box 42\5\ Scan044 | |
| Date | 25th May 1927 guessed | |
| Oy2-E-101023 -2- 2. Wear of right front tires. This also has been a very general complaint and is especially prevalent just now on certain of the cheaper cars. Where dealers adjust the slack and toe-in of the front wheels before selling the cars, the complaints are less prevalent than when cars are sold as received from the factory. Apparently therefore the complaint has something to do with adjustment of toe-in and slack in steering, but why the wear should concentrate on the right front tire is unknown, unless it is due to the road camber throwing more load onto the right hand side. When once this tire starts wearing however and becomes smaller than the other, the steering begins to "pull" to the right and further use will accentuate the wear by reason of the pull. Mr. Moore pointed out that the pronounced scalloping which occurs with slack steering when non-skid treads are used in front, is a combination of the wear on the edges of the tread which occurs on a smooth tire used under these circumstances and the "scalloping" which occurs on any non-skid tread used under any conditions. The cure for this defect appears to be - (a) Adjust slack in cross-steering tube every six months as called for on page 43 of instruction book. If this slack is regularly taken up very little wear will develop, and the alteration in the toe-in of the wheels due to wear will be negligible. (b) Oil the cross steering tube joints regularly. (c) If wear is noted on either front tire change it to the other side of the car at once. Do not let it go on till a distinct "pull" is felt on the steering wheel. (d) If after a collision, or under any other conditions, a "pull" is felt on the steering in either direction, check up on the inflation of the tires and, if equal, check up the toe-in of the front wheels and the line-up of the front and rear wheels. The correct toe-in is .380" measured on the edge of the tire or .250" on the Duby tracking gage which our service branches should use, since it measures slack as well as toe-in. Oy. MD/E | ||