Trying to rebuild original air horns
10-20-2018, 11:31 PM
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Trying to rebuild original air horns
1978 Ford F-250 that has had mechanical air horns since it was new. There is Zebart over the mounting bracket. The valve assembly has bad foam gaskets. Any info about this horn would be very appreciated.
10-24-2018, 10:34 AM
#3
moved to the Classics Corner
10-24-2018, 09:36 PM
#4
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Post pics:
http://www.supermotors.net/forums/th...-and-or-videos
Does it look like this?
(phone app link)
http://www.supermotors.net/forums/th...-and-or-videos
Does it look like this?
(phone app link)
10-26-2018, 10:26 PM
#5
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That's it!
Post pics:
http://www.supermotors.net/forums/th...-and-or-videos
Does it look like this?
(phone app link)
http://www.supermotors.net/forums/th...-and-or-videos
Does it look like this?
(phone app link)
10-28-2018, 12:35 PM
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You'd be much better-off just using a modern 12V electric air compressor pump with a pressure-limiting switch.
10-28-2018, 02:06 PM
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Yes, that's an good option. The truck is "stock to the bone" and if I can't make the old one work I'll be looking for the 12v pump. The truck has a cool story history and I would like to keep as much of the original equipment the truck left the dealership with as I can.
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10-28-2018, 10:57 PM
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It won't be worth a penny more to you or anyone else with all its old, original, unreliable parts. The lower-maintenance you make it, the more you'll enjoy it. And modern parts are better. Ford only used that vacuum system because at that time, 12V air pumps were expensive, rare, & unreliable. That has changed, so there's no reason to keep the vacuum system (which is now expensive, rare, & unreliable).
BTW
Undercoating (Ziebart) can usually be removed by soaking in mineral spirits, kerosene, VarSol, Crystal Kleen, or (at worst) gasoline. Carb or brake cleaner may also remove it. If none of those works, try original Goof Off (not the newer water-based version) in a well-ventilated area, using solvent-resistant gloves.
BTW
Undercoating (Ziebart) can usually be removed by soaking in mineral spirits, kerosene, VarSol, Crystal Kleen, or (at worst) gasoline. Carb or brake cleaner may also remove it. If none of those works, try original Goof Off (not the newer water-based version) in a well-ventilated area, using solvent-resistant gloves.
Last edited by Steve83; 10-28-2018 at 11:00 PM.