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Q & A: Bent Distributor CB Plate

I was just wondering, after acidentally breaking the low tension lead on a 25d distributor I pulled the unit and noticed that the points only touch the cam when on the corner of it (the place that the points open). I am under the impression that the points should contact the cam at all times. Am I correct in this assumption? In the event that I am correct, would you suggest that I have a bad set of points, or otherwise.

As a bit of bacground I have previously dissasembled the distributor and cleaned and lubed it. This was done while I overhauled the engine. I am a competent mechanic, and have British car experience (via english motors), but could very well have made a mistake.

I was also wondering if you might be able to sell me a set of advance springs, as the originals have seen better days, and one shows obvious signs of fatigue. I have 1 3/4 su carbs, and a mild performance reground cam, and use the car mostly for track days. I hate to bother you for a relativley inexpensive set of springs, as I am sure you are rather busy. However I would enjoy hearing back from you to know whether I am headed in the right direction or not.

There is the base plate and there is the CB (contact breaker) plate. As the CB plate rotates on he base plate (when the vacuum advance works), it eventually wears a slot in the base plate and the little cylindrical "T" on the CB plate ... read more