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| Antique Engine Archives All archived posts from 1999 to 2004 when SmokStak was on EnginAds. This is a read-only board. |
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Webster magsOn Webster mags is there a right way on which the north field side of magnet goes on mag body...this thread has 6 replies and has been viewed 490 times
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#1
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On Webster mags is there a right way on which the north field side of magnet goes on mag body Thanks Steve
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#2
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I don't think so Steve. As long as all the north's are sandwiched together. If you've removed the magnets from their mounting w/o a shorting bar installed you will probably need to get them recharged. I believe guru Doc Shuster recommended not only NOT removing the magnets, but he didn't even like the idea of removing the armature...but I do.
Hopefully Ted will add to this. Good Luck RickinMt. |
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#3
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Sorry it's Fred "Doc" Schuster. His book to my knowledge is out of print now with no plans on re-print.
later, RickinMt. |
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#4
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Rick,I don't know about the way the magnets go on the mag body. But I can say this as far as magnets looseing their charge when removed is concerned. I had this experience with a one bar horseshoe from a Webster. I had it tied to a piece of wire and used it to fish parts out of a tub filled with lyewater for one or two years. I would use it, pitch it down on the concrete. which,by the way I had heard that jarring would take the magnetism out, It apparently had never heard either one of these things because there came a time when I had a Webster which needed a magnet. The fish bait magnet was too big to fit the case that I had ,soo,I took it to the grindstone and ground it down until it would fit down over the magneto housing and It was still strong enough to start the engine whch was a 1 3/4 Economy.
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#5
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All I can say Joe is that you got lucky.
Magnetos require what is called “Saturation” to perform at their peak voltage. This is achieved by placing the assembled Magneto on a Magneto Charger which exposes the magneto to an overpowering magnetic field. The result is that the assembly of a magnet, core and inductor will hold something on the order of 40% more magnetic strength than the magnet alone. Removing the magnet or the inductor from the magneto core will result in the loss of the “Saturation” and cause a similar loss of voltage. This does not mean, as your experience proves that the magneto will not work after the loss of saturation, but it will not work up to it’s full potential and most times will not work at all. When replacing magnets on the core it makes no difference which side of the core the North polls are on as long as they are all on the same side. Magnets can be charged while off the magneto by the use of a “Keeper” which is a soft iron or steel bar that goes from one poll to the other of the magnet while it is still in contact with the charger. With the keeper in place, the magnet can be transferred from the charger to the magneto without loss of the saturation providing that the inductor is in place. Most magneto companies, in their charging instructions however said to charge the magneto as an assembled unit. It is important to remember to only place magnetos on the charger with the north poll of the magneto on the south poll of the charger, this should be check each time with a “Compass” make certain that the polarity is correct. Here is a handy page on magnet charging http://www.oldengine.org/members/brookover/Magneto |
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#6
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Thanks to all for information Steve
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#7
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TED, THANKS FOR THE INFO AND GOOD PICS. LEARN SOMETHING EVERYDAY ON THE STAK. DICK STAATS VICTOR, MT.
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