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).
Troubleshooting guide table for vehicle complaints, detailing potential causes related to front and rear suspension.
| Identifier | ExFiles\Box 178\1\ img200 | |
| Date | 28th August 1926 guessed | |
| - 27 - Complaint. | Front suspension. | Rear suspension. Snatchy steering. Bumping in front. | Front springs or shock dampers weak. (Probably the latter) | Harsh riding in front only. | Shock dampers too tight. Springs rusty. | Harsh riding generally. | Rusty springs. Shock dampers too tight. Hard tyres. | Rusty springs. Reduce shock damper setting. Hard tyres. Bonnet rattle in passing over car tracks or 'setts'. | Front shock dampers tight. Hard tyres. | Chunking and dancing of rear axle. | | Too weak rear springs. Not enough weight over rear axle. Shock dampers set too light or disconnected. Hard tyres. Rear rides well when sitting forward but throws when leaning back. | | Examine cushions and seat backs. Steering selectiveness poor. Rolling on corners. Bad high speed control. | | Too weak rear springs. Insufficient rear damping. Tyre pressure too low. Sea sickness. Large amplitude slow oscillations at the rear. | | Too weak rear springs. Insufficient rear damping. Transmission knock when letting 20 HP. clutch in. | | Spring clips loose. Knocks from rear on bad roads. 40/50 HP. | | Wearing pad or Spring rollers worn. | ||