Talk Morgan Forums Morgan Sports Cars Maintenance & Servicing Workshop Note - Bump Stop assists

Thank you Lorne for sharing your perspective

I hope you don’t mind but I feel I should fact check the gomog comments below.




If TM is the British forum referred to I’m not aware of any recommendation to use these devices as a fix for degraded sagging leaf springs, to the contrary, one of my previous comment on the subject below a couple of years ago. Its also stressed in the assembly instructions not to be fitted with sagging springs. Unfortunately some cars suffer from bottoming even with new springs and don’t necessarily exhibit any sign of sagging.






I apologize if perhaps you have been misled by the term “bump stop” that is often used. These are not conventional bump stops. As DaveW says they are more akin to spring assists, hence the name of the thread. The conical elastomer stops function as supplementary adjustable progressive springs that under some circumstances might improve comfort and safety. If you were to drive a car with these fitted you might notice the subtle feel of the elastomer at the end of the suspension travel. The leaf springs appear to be more tolerant to body impact or the shock of the diff hitting the pad under the hoop when these are fitted.


Posted before but here is the force/deflection profile for each stop which may or may not be of interest.