Posted by Bob on July 24, 2008 at 06:35:27 from (69.178.228.68):
In Reply to: magneto advice posted by sgt bull on July 23, 2008 at 20:17:35:
The rotor isn't causing your funky spark timing. The spark occurs when the POINTS open.
A loose rotor MIGHT cause some of the sparks to be weak, as it flops around but won't affect WHEN they occur.
Clamp the timing light over the wire from the coil nipple to the distibutor cap, which will take the rotor out of the picture, and see what the timing light shows.
(The light will flash @ 4 points, including the correct one, and you WILL be able to see the timing mark.)
You can fix the loose rotor with a little dab is silicone gasket maker. It will hold the rotor steady, and yet the rotor can be easily removed, if needed.
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