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Old 07-09-2021, 10:29 AM   #1
Russell Reay
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Default Horn repair

No sound from my aoogah horn, so will disassemble, clean, and reassemble per Les Andrews. His sketch shows two felt oil washers on the motor--one at each end. Mine had only one, and I lost the other during disassembly. Is there a common household product which could be used to create new ones--old felt hat, Sorel boot liner, etc?
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Old 07-09-2021, 10:42 AM   #2
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Default Re: Horn repair

One more question--instructions say to clean field windings with compressed air. Any reason why I can't use solvent?
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Old 07-09-2021, 11:01 AM   #3
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Default Re: Horn repair

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No sound from my aoogah horn, so will disassemble, clean, and reassemble per Les Andrews. His sketch shows two felt oil washers on the motor--one at each end. Mine had only one, and I lost the other during disassembly. Is there a common household product which could be used to create new ones--old felt hat, Sorel boot liner, etc?
Plain old felt. Just to retain light oil against the shaft.
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Old 07-09-2021, 11:02 AM   #4
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Default Re: Horn repair

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One more question--instructions say to clean field windings with compressed air. Any reason why I can't use solvent?
Solvent may eat through the lacquer insulation, causing short.
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Old 07-09-2021, 11:02 AM   #5
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Default Re: Horn repair

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One more question--instructions say to clean field windings with compressed air. Any reason why I can't use solvent?
Yes, depending on the solvent you use it might loosen or remove the installation on the windings. If so then you are SOL, and the windings will need to be replaced.
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Old 07-09-2021, 11:10 AM   #6
Russell Reay
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Default Re: Horn repair

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Thanks for the warning
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Old 07-09-2021, 03:03 PM   #7
Kurt in NJ
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Default Re: Horn repair

Mass airflow sensor cleaner so far hasn't eaten any parts I have tried it on, use it to clean contaminated transmission computers
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Old 07-09-2021, 03:05 PM   #8
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Default Re: Horn repair

And please follow the advice Andrews gives about being gentle with the armature. I wasn't, and one of the wires broke. I was lucky to find a rusty but working horn on an auction site, so I put its armature in my horn and I'm back in business.
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Old 07-09-2021, 03:15 PM   #9
Russell Reay
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Default Re: Horn repair

I am being very careful. The wires appear very fragile, and I don't wish to break any of them
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Old 07-10-2021, 02:39 PM   #10
Ivan in southeast va.
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Default Re: Horn repair

This is what a bad horn looks like. I bought a new one from A&L before the pandemic.
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Old 07-12-2021, 08:51 AM   #11
Russell Reay
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Default Re: Horn repair

Update- Followed all procedures, reassembled horn, and it works, but it is not nearly as loud as it should be. Maybe it just needs adjustment, but Is wire size a culprit? I tested it with ~14 ga jumper wires
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Old 07-12-2021, 11:59 AM   #12
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Default Re: Horn repair

Any voltage drop is a problem for the horn motor.
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Old 07-12-2021, 12:12 PM   #13
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Default Re: Horn repair

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Update- Followed all procedures, reassembled horn, and it works, but it is not nearly as loud as it should be. Maybe it just needs adjustment, but Is wire size a culprit? I tested it with ~14 ga jumper wires
Probably adjustment. Maybe worn ratchet. #14 is plenty.
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