In a message dated 9/9/2009 8:56:09 AM Central Daylight Time,
tr3driver@ca.rr.com writes:
> With points, only a mechanical flaw in the distributor
>(like the advance mechanism bent, disconnected or broken)
> would change the phasing.
Dave Massey replied:
> Or the rotor index boss is damaged and the rotor can be
> installed improperly. (Ask me how I know)
Or as was pointed out before, the detection of the open/closed transition was
being done at the timing when the points were closing again instead of opening.
This could be caused by the user either turning the engine the wrong way or by
looking for a test lightbulb to do the wrong thing.
If the bulb was wired across the points or between the ignition + and ground
(which is the same as across the points), the bulb will turn on when the points
open. If the bulb was wired between + from the battery (or any other "on"
voltage source) and the ignition +, the bulb will go out when the points open.
Jim Muller
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