I have an Aldon Ignitor fitted, this is probably more tolerant of worn bearings but the downside is that the shaft does not have the 'sidetways preload' of the contact breaker so possibly flops around a bit more.
I presume that excessive free play will make the ignition timing erratic, or at least add some random scatter to the ignition pulses, the question is, how much wear is acceptable before it affects the engine performance?
- Third Gear
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In comparision my spare Bosch points distributor that I now use has 0.0008 inch lateral play at the same location.
I would think 10 thou lateral movement would be excessive and probably not great if using points, how it will work with the modern magnetic trigger systems I dont know.
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