Motorized battery horn repair

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Model T Ford Forum: Forum 2017: Motorized battery horn repair
Top of pagePrevious messageNext messageBottom of page Link to this message  By Chad Marchees _____Tax Capital, NY on Monday, August 07, 2017 - 07:00 pm:

I have a couple of "ahoga" motorized horns in need of repair. Both are 6 volt, one used to work several years ago, one has really nice internals but doesn't work at all.

I am very mechanically inclined, but for the life of me, I can not figure out how to get these to work again. Is there someone that can help or guide me to possibly get these working again?

The one that used to work, I can not get it the motor to work on a 6v battery any more, but it will motor under a 12v battery. It is definitely a 6v horn as the tag says. I used some fine sand paper to clean the brush ends and commutator, but the most I can get it to turn under six volts is a little nudge in a certain spot.

Can anyone help?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Lenney Glenn on Tuesday, August 08, 2017 - 10:01 am:

Bad bushings? Motor should spin easily with your fingers.Corroded connections between armature windings and commutator bars? Check with amp meter in series with the armature. Current draw should be same as the armature is rotated with your fingers,assuming a 6v battery and good brush/commutator contact. If no meter you can wire a 6v bulb instead. Brilliance should be uniform.


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