Flywheel runout

O

Old Gunsmith

New member
How can I correct .080" runout on my flywheel. The magnet/coil gap varies from .020" to .100". One of the brass screws broke and caused some damage when the magnet hold down went flying around. I replaced the coil ring, the brass screws, the ring gear and a couple of hold down plates. The runout was already there before I took the trans apart because I noticed it when I took the cover off the hogshead.
Will it put out enough AC or can I shim the flywheel?
 
You may need to find the procedure for setting the magnet height for all the magnets if there is a gap problem between the tips of the magnets and the magneto pick up.
 
You need to get the Ford Service manual sold by the dealers that will cover the setup and adjustment of the magnet height. There is more to this job then just putting parts together. All the magnets need to be the same height within a few thousands. When that is done, you then need to set the gap between the magnets and magneto coil ring using shims between the block and magneto coil ring.
You don't shim the flywheel.
 
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