the problems there is a lot of slop on the top part of the distributor shaft that the reluctor slides on and that the rotor sits on.
this is side to side (radial) play, in other words with the gap set at .008" the shaft can move side to side enough so that the tooth are contacting the magnet? that side to side clearance (play) should be near zero.
Yes radial play. It's been this way ever since I got the distributor from Mancini and I think it's been contributing to the Miss firing problem I've been having. Every time I tried to describe the movement I was told it was the advance mechanism and springs, which the advance mechanism and springs do cause a movement when the distributor is installed and this radial play is completely different. So I just wasn't doing a good enough job describing the movement but I I now know that it's radial play, and it's got to be cause of a bad bushing or bearing under the top half of the distributor shaft.
