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FMJ magneto

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gregPA

02-12-2004 13:23:14




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hello all. i have a question. how does the impulse coupling come off of the rotor shaft? i need to strip the mag to weld up a crack in the housing. i have everything else removed but those 2 items. i don't have a parts drawing. thanks, greg




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Rod (NH)

02-12-2004 14:19:41




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 Re: FMJ magneto in reply to gregPA, 02-12-2004 13:23:14  
Hi Greg,

Here's a cross section of that impulse coupling.
third party image
As I recall the retaining nut is left hand threaded. Use an impact wrench to remove the nut. I have also had to use a wheel puller with narrow jaws to then remove the coupling from the tapered and keyed shaft.

third party image Rod

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gregPA

02-13-2004 04:20:36




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 Re: Re: FMJ magneto in reply to Rod (NH), 02-12-2004 14:19:41  
thanks, put the puller on it and it popped right off. the drawing really helped. especially with being able to see the retainers. now it's off to the wash tank and welder. greg



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gregPA

02-13-2004 03:11:48




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 Re: Re: FMJ magneto in reply to Rod (NH), 02-12-2004 14:19:41  
thanks Rod. that's what i needed to see. greg



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