Horn Rebuilding
06-08-2013, 07:41 AM
#1
Melting Slicks
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Horn Rebuilding
One of the horns of my '81 is not working, so I took it apart.
Did some rust removal and then clamped it back together, applied 12V and it makes noise....would not call "working"....but then again I was just holding it together with my hand.
Does anyone have any rebuild hints? I do not see sending it off to be rebuilt due to the prices involved when a plastic replacement is only $20.
Anyone?
Did some rust removal and then clamped it back together, applied 12V and it makes noise....would not call "working"....but then again I was just holding it together with my hand.
Does anyone have any rebuild hints? I do not see sending it off to be rebuilt due to the prices involved when a plastic replacement is only $20.
Anyone?
06-08-2013, 08:24 AM
#2
Race Director
There are rebuild kits with instructions available. I think it's from Corvette America but cant remember for sure. Check the sites of the usual suspects.
If you just want to go with what you have, there is a gasket (paper type) that goes between the halves. I'm sure that you could substitute a piece of wax paper without impact. If the metal diaphragm is intact and the magnet is reasonably clean, you might be fine. You could use small bolts (#8 maybe?) to hold put the horn back together instead of the correct rivets. The only thing left would be to adjust it to the best sound. There is a conical, spline headed bolt that sticks out of the half with the power hookup. This adjusts the length of the magnet throw. You'll probably have to free this up and adjust it by ear. Be aware that it'll be very loud if everything works properly.
Hope this helps.
If you just want to go with what you have, there is a gasket (paper type) that goes between the halves. I'm sure that you could substitute a piece of wax paper without impact. If the metal diaphragm is intact and the magnet is reasonably clean, you might be fine. You could use small bolts (#8 maybe?) to hold put the horn back together instead of the correct rivets. The only thing left would be to adjust it to the best sound. There is a conical, spline headed bolt that sticks out of the half with the power hookup. This adjusts the length of the magnet throw. You'll probably have to free this up and adjust it by ear. Be aware that it'll be very loud if everything works properly.
Hope this helps.
06-08-2013, 10:23 AM
#4
Safety Car
Here is an article on how to rebuild your horn and where to buy the parts
http://www.corvettemagazine.com/53_6...-horn-rebuild/
http://www.corvettemagazine.com/53_6...-horn-rebuild/
Thanks 69FASTFUN for posting the article
06-08-2013, 11:14 AM
#5
Melting Slicks
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Yep...read that article and have found a couple of the rebuild kits....problem is the year range does not cover my '81....do not know why...the horns sure look to be the same...but I assume there is some vailid reason.
The horn parts are all there and I just need to make a gasket out of something....I should be okay. No problems with using either #6 or #8 screws to hold together.
Just not sure what to make that gasket out of....poster board?....or could I use a thin bead of RTV? Guess I have nothing to loose by trying, right?
The horn parts are all there and I just need to make a gasket out of something....I should be okay. No problems with using either #6 or #8 screws to hold together.
Just not sure what to make that gasket out of....poster board?....or could I use a thin bead of RTV? Guess I have nothing to loose by trying, right?