[AT] Strange Magneto event today.

[Mark Johnson]

Is there anything in or around the shop that could have abruptly 
demagnetized the magnets...some of the older 'permanent magnet' metal 
recipes weren't all that permanent, although I never heard of one 
getting de-magged so abruptly!

Mark J

On 5/21/2020 12:55 AM, Dean VP wrote:
> Was helping a friend today testing out some carburetors and Magneto's 
> on his 1936 JD B. A very strange thing occurred. I was in charge of 
> clean ing Magneto's up and getting them to the point that they would 
> deliver spark manually on the bench. Then we would install them on a 
> tractor and get the tractor running. I went though one Magenta pretty 
> thoroughly and was getting really good spark out of both ports on the 
> bench. Install it on the tractor absolutely no spark.   Could hear a 
> really good impulse. We tried tightening it up tighter and also 
> loosening it up. No change ...no spark.  Blew me away I was getting 
> really GOOD SPARK MANUALLY NOT MORE THAN A FEW MINUTES BEFORE. W hat 
> in the sawmill would cause something like that.  The only thing we 
> didn't check was to see if the Magneto was getting grounded properly 
> to the governor.  That is the only thing I can think of right now. 
> What other reasons would cause this strange event???  Really weird.
>
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