All this talk about the cam lobes . . . .

From my experience after having disassembled many Saito's, There is a high incidence of lifter or cam follower pitting and wear.

In my tear down and reassembly of a Saito I always plan on replacing the cam followers. (Or at least checking them) I have refaced them when I didn't have new ones. On a high time engine the face of the rocker arm where it contacts the valve stem will also have a wear indention and make it impossible to adjust the valves accurately.

The cams themselves seem to hold up well. There are areas that do show wear first are where there has been excessive valve lash and at the point on the cam where this lash is taken up, there will be a wear point. This is on the sides of the lobes, not the peaks.

There was a person on here that had a picture of a badly pitted cam lobe. I cannot remember the details but I do not remember the cause being excessive use. It was more of an improper storage situation.