Talk Morgan Forums Morgan Sports Cars Classic Morgans (pre-CX) Suplex

Dave

I would suggest checking the adjustment of the springs. It may be that there is too much pressure on the lower spring and that could explain the why nodding dog syndrome still happening. I am sure that the mechanic would have adjusted mine as best he could in the workshop but after about 80 km I checked and found that one side was out quite a bit, about 4 mm. It is also possible that he did not fully understand the instructions. It is worth while reading the fitting instructions before checking.

To check them you need an absolutely level surface as any uneven surface will put more load on one wheel than the other. You then bounce the front of the car up and down and swing the steering wheel from side to side. When you are convinced that the front has completely settled check to make sure that the lower springs can be just turned by hand and that the measurement of the distance from the triangular plate to the underside of the stub axle (top of the lower spring) is 66mm or 86mm if the spacer is at the bottom (tolerance +2mm -0mm). This distance is the most important part of the adjustment of the system and once everything is settled in it should not require further adjustment for a long time.

It is possible to adjust the top rings with the car on the ground by turning the wheel fully to one side and working lying on the ground behind the wheel. There is not much room but it can be done. You need to wedge something in one of the slots at the top of the adjuster sleeve or it turns. I used the handle end of one of the C spanners provided and braced it against the support for the top of the kingpin. After you have adjusted it check the lower springs again, after bouncing the front end and swinging the wheel from side to side, to be sure they are correct.