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).
Factors and potential cures for wheel fight and shimmy in a vehicle.
| Identifier | ExFiles\Box 170\3\ img064 | |
| Date | 17th June 1931 guessed | |
| -8- master Chevrolet use the engine mounts in this way). the action of the rocking engine serves apparently as a harmonic balancer which stops the rocking motion of the car which is on, or the sum of, the elements of the low speed wobble. Mere wheel fight on the road is encountered which is not exactly low speed wobble but is allied with wobble; the frequency of engine mount will still be found to have a very great effect on wheel fight. (c). The factors tending to cure wheel fight are:- (a). Stiffening steering mechanism, steering gear, or steering gear mount. (However where a shimmy tendency is the dominant cause the reverse may give improvement, as noted above). (b). Increased shock absorber action. (c). Front stabiliser, or increased front spring rate. (d). Increased torsional stiffness of body frame assembly - particularly true of the shimmy tendency in cornering. (e). Avoiding lost motion in steering gear, steering linkage, or kingpins. Maurice Olley. | ||