Forums General Counties Cars Discussion Stiff steering on A40 Somerset Reply To: Stiff steering on A40 Somerset


Hi there John,

In addition to the things that David has covered, if your box is constructed the same as Atlantic boxes,   if the cam follower has been tightened a little too much,  even if eased off slightly, due to overtightening, the cam follower ground face that runs on the face of the main worm may have developed worn “flat” spot, making the steering harder. Also, having rebuilt a number  Atlantic boxes over the past 50 years, the small diameter ball races that are on either end of the worm have often been found to be split literally in half, and the bearing faces where these run can also be affected by “gawling”.  Whether or not the gawling of the surface commences with wear of the balls, resulting in the splitting, or the initial breaking up of the balls resulted in the bearing surface damage, I have not established.  Fortunately, the boxes I have done have all been able to be returned to active service,  having been able to obtain new balls for the the top and bottom of the main cam, and also new cam followers. A90 cam followers are getting a bit scarce,  and if yours are similar, they may also be.

If you decide to dismantle, it would be interesting to read what you find.

All the best-Peter.