I took mine apart too and it was and has been successful. If one is
sort of working then I'd be fairly sure of success. I think it's
mostly the result of corrosion of dissimilar metals. Once that is all
cleaned up it should be good. The rivets are an odd size and I tapped
the top piece and put in Allen head screws from the bottom. Fresh coat
of paint few if anyone will notice.
Allen
On Dec 21, 2013, at 8:26 PM, triumphs-request@autox.team.net wrote:
> Jim,
>
> They are somewhat re-buildable depending on the internals. If the
> coils are toast then so is the horn.
>
> I was able to rebuild a set by drilling out the rivets and cleaning
> the contacts. But you have to really be careful on reassembly that
> the metal disc is not damaged. There is also a gasket that will be
> toast. You will need to replace the gasket as it offers some spacing
> so the metal disc will vibrate and therefore produce the horn sound.
>
> I chose to replace the rivets with 1/4" screws just in case on
> reassembly the horn did not work.
>
> Out of 4 broken horns, I was able to get 2 working and after 5 years
> they still work. For how long who knows?
>
> I do see them on Ebay from time to time but the price tends to be a
> bit high.
>
> Bob
>
> On 12/21/2013 01:43 PM, Jim Henningsen wrote:
>> List:
>> My horns from my 62 TR4 are toast. Neither work at all. I tapped
>> the casing
>> lightly with a hammer to see if I could free up the mechanism. One
>> is now
>> working slightly, the other is not. Are these rebuildable? Does
>> anyone have
>> a pair of working horns from an early TR4 that they would be
>> willing to sell.
>> I am bringing this car back to stock and would really like to find
>> the correct
>> early horns. Unfortunately, one of mine was the orig 62 date
>> stamped horn.
>> Any help would be greatly appreciated.
>> Jim Henningsen
>> Ocala, FL
>> 62 TR4 CT5212LO
>> 62 TR4 CT6431L. The donor
>> 75 TR6
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