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wheel horse over charging


 
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eddie carik
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PostPosted: Sun Mar 03, 2013 1:28 pm    Post subject: wheel horse over charging Reply to specific post Reply with quote

I have a 1987 414-8 wheel horse with a 3 amp unregulated charing system that over charges how do i check the stator and what should i look for?
i believe it has a 14hp magnum motor
 
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El Toro
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PostPosted: Sun Mar 03, 2013 4:48 pm    Post subject: Re: wheel horse over charging Reply to specific post Reply with quote

What is the charging voltage acroos the battery terminals at 1/2 throttle or better? Should be around 14.0-14.5 volts on a 12 volt system. There's probably a stator in the flywheel that supplies ac voltage to a diode that converts the ac voltage to DC. Here's a wiring diagram that may help. I think the ac voltage should be in the 20 to 30 volt range. Hal

 
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stronics
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PostPosted: Sun Mar 03, 2013 5:07 pm    Post subject: Re: wheel horse over charging Reply to specific post Reply with quote

What tells you it"s overcharging? Voltage or current?
David
 
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joe csuti
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PostPosted: Mon Mar 04, 2013 3:13 am    Post subject: Re: wheel horse over charging Reply to specific post Reply with quote

First thing to do is either check battery with a hydrometer or remove & have load checked,most problems associated with an overcharging condition in an unregulated system are caused by weak/bad cell(s) in battery due to the fact internal resistance of battery changes with charge level & this acts as a regulator for alt output on eng,due to the low charge rate(1.5A-3A)and the fact alt is always charging battery this tends to shorten life of battery in the long run.

If battery checks out ok & you suspect system overcharging due to a constant hi current/voltage reading on dash meter(if tractor has)then problem may be a shorted inline diode on alt output or a problem in alt stator,goto link below & download service/repair manual(free download)for magnum eng in section 8 of manual it will tell you how to troubleshoot 3A charging system.
magnum

 
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eddie carik
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PostPosted: Sat Mar 09, 2013 8:51 am    Post subject: Re: wheel horse over charging Reply to specific post Reply with quote

putting out 4.5 amps and 15.5-16 volts
 
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