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I found the original horns in a box but they did not work. I might give the H=
ellas a try
> On Sep 25, 2023, at 4:48 PM, Joe Brown <jbbrown1980@gmail.com> wrote:
>=20
> =EF=BB=BF
> I attempted to repair my original horns but the wiring inside was crumblin=
g. I saved them for a future project. What I installed in my car was a pai=
r of Hella dual trumpet horns. You can see them at https://www.summitracing=
.com/parts/hla-007424801. They come with a relay and they mount up in the o=
riginal locations with the original wiring. I didn't use the relay but I mi=
ght go back and add it. I tested them before I installed them and they were=
really loud but they didn't seem to be as loud after I installed them. So I=
'm guessing that if I rewire them and use the relay I can get more current t=
o them and have a louder sound.
>=20
> Have Fun,
> Joe Brown
>=20
>> On Mon, Sep 25, 2023 at 3:21=E2=80=AFPM GARY WINBLAD <garywinblad@comcast=
.net> wrote:
>> Most all aftermarket horns have only one terminal or have 2 terminals tha=
t are both 12V.
>> There was only one brand that Paul Reisentz found to use.. I wish I could=
remember.
>> I think it was SPAL (the fan guys) but googling I can't find them.
>> =20
>> I remember because I dissected a defective original horn for him. Unlike=
Theo, I couldn't
>> see any way to fix that one.
>> =20
>> Bob, you will probably need to look for some original horns (that still w=
ork) or add a relay for the
>> fans you already have.
>> Gary W.
>> =20
>> =20
>>> On 09/24/2023 8:08 PM PDT Bob Wanty <bobwanty@gmail.com> wrote:
>>> =20
>>> =20
>>> =20
>>> My horns have a single terminal so I will get two terminal horns. The re=
lay idea sounds good.
>>> Thanks for the help.
>>> Bob
>>>=20
>>>> On Sep 24, 2023, at 9:45 PM, Theo Smit <tsmit@shaw.ca> wrote:=20
>>>>=20
>>>> Hi Bob,
>>>> =20
>>>> The wiring diagram here: http://tigersunited.com/resources/wsm/tt-image=
s/MKIABIGwiring.jpg shows two solid purple wires to the horns feeding 12 vol=
ts, and two purple with black stripe wires that are the horn ring connection=
s. There is no separate jumper wire from one horn to the other; if your car h=
as that then it was added by a previous owner.
>>>> <Screenshot 2023-09-24 at 7.34.26 PM.png>
>>>> =20
>>>> But, if the horns already start to sound when you connect just the hot s=
ide, then there is an internal short in at least one horn, which is not how i=
t's intended to be. if you have an ohm-meter that can measure very low resis=
tances then you can take measurements across the two horn terminals and from=
each terminal to the horn body (or the frame mount). That would help you is=
olate where the wiring problem is.
>>>> <Screenshot 2023-09-24 at 7.38.18 PM.png>
>>>> This is a sketch of the high-tone horn. The low-tone horn has an L cast=
into the bell. The two terminals connect (through the wire coil and the poi=
nts) to each other, but there should be no connection to the horn body itsel=
f. The way you're describing the operation of your horns, connecting one of t=
he terminals to hot causes the horn to go, even if the other wire is not con=
nected (or, without pushing the horn ring on the steering wheel).=20
>>>> =20
>>>> Do both horns work the same way (i.e. they go off when only the hot is c=
onnected) or does only one horn do that? If one horn works properly (connect=
the purple wire to one terminal, connect the purple-with-black-stripe wire t=
o the other) then that horn is fine and it's the other one that has an inter=
nal short. It can probably be fixed by opening the horn up and figuring out w=
here the short is.
>>>> =20
>>>> Theo
>>>> =20
>>>> From: "Bob Wanty" <bobwanty@gmail.com>=20
>>>> To: "Theo Smit" <tsmit@shaw.ca>=20
>>>> Cc: "Tom Witt" <atwittsend@verizon.net>, "tigers" <tigers@autox.team.ne=
t>=20
>>>> Sent: Sunday, September 24, 2023 6:41:37 PM=20
>>>> Subject: Re: [Tigers] Horn Wiring
>>>> =20
>>>> Thanks for the responses.
>>>> Everything is wired to the horns, they look original. There are 2 purpl=
e wires to each horn, one is hot from the fuse box the other wire goes to gr=
ound when the horn ring is pressed. When I plug the hot wire to the horn it=
works fine, even honks. So the horns must not be original since they are gr=
ounded to the frame. I still have 4 purple wires when I only have connectio=
ns for two and the wiring diagram only shows two wires, one to each horn.
>>>> So should I isolate the horn frame ground, plug the hot wire to the hor=
n, use the existing jumper between the horns and connect the horn ring wire t=
o the other horn?
>>>>=20
>>>> On Sun, Sep 24, 2023 at 1:50=E2=80=AFPM Theo Smit <tsmit@shaw.ca> wrote=
:
>>>> =20
>>>> Correct except that Rootes (or Lucas) would never use a relay where the=
y could instead pass all the current through a finicky sliding contact.=20
>>>> =20
>>>> Bob, the horns, when properly adjusted, draw about three amps each. It w=
ould be a good idea to wire in a cube type relay so that the ring contact do=
es not have to pass that much current.=20
>>>> If you like I can draw up a wiring diagram for that.=20
>>>> =20
>>>> Theo=20
>>>> On Sep 23, 2023, at 10:52 PM, Tom Witt via Tigers <tigers@autox.team.ne=
t> wrote:=20
>>>>=20
>>>> I believe most horns have a relay and the 12v+ is already at said relay=
. When the horn ring makes contact it GROUNDS the relay (completing the circ=
uit) and the relay contact points connect. That passes through the 12V+ to t=
he horns. So, typically the horn ring simply grounds the relay to activate i=
t. Sorry too late for me to check the manual for Tiger specifics but MOST ca=
rs function that way.
>>>>=20
>>>> Think of yourself standing at a light switch in the house. When someon=
e presses you on the shoulder (connecting to ground) you and the switch act l=
ike the relay moving the switch to the on position. This then send power to t=
he light (horn). When the person pressing on your shoulder releases you turn=
the switch off. Hope that helps.
>>>>=20
>>>> =20
>>>> On 9/23/2023 5:59 PM, Robert Wanty wrote:
>>>> I am working on wiring the horns for the first time since my 15 year re=
store. I am working with the original wiring harness and horns. Starting at t=
he horns there is one on each side with a jumper wire between the two horns=
, there are 2 purple wires leading to each horn, one wire on each side is ho=
t and wired to the fuse box the second wire is not hot or grounded. I insta=
lled a new horn ring from SS and have one wire from the contact on the horn r=
ing and a second wire for the circle contact off the signal switch, I think t=
he wire for the circle contact should be hot but I don't seem to have a con=
nector for it in the harness under the dash and nothing for the wire to the h=
orn ring.
>>>> It would seem to me that I should have a hot wire to the ring contact t=
hen a hot to the horns when the horn ring is pressed. but the wiring harness=
does not seem to follow that way of thinking.=20
>>>> The wiring diagram is some help but as usual my limited knowledge on th=
is will probably start a fire.
>>>> Any help would be appreciated, I would rather not rewire the circuits s=
o hopefully I can restore the Lucas system.to its original splendor.
>>>> =20
>>>> =20
>>>> Bob=20
>>>> =20
>>>>=20
>>>> =20
>>>>=20
>>>> _______________________________________________
>>>>=20
>>>> tigers@autox.team.net
>>>>=20
>>>> Donate: http://www.team.net/donate.html
>>>> Archive: http://www.team.net/pipermail/tigers http://autox.team.net/arc=
hive
>>>>=20
>>>> Unsubscribe: http://autox.team.net/mailman/options/tigers/atwittsend@ve=
rizon.net
>>>>=20
>>>>=20
>>>> _______________________________________________=20
>>>>=20
>>>> tigers@autox.team.net=20
>>>>=20
>>>> Donate: http://www.team.net/donate.html=20
>>>> Archive: http://www.team.net/pipermail/tigers http://autox.team.net/arc=
hive=20
>>>>=20
>>>> Unsubscribe: http://autox.team.net/mailman/options/tigers/bobwanty@gmai=
l.com=20
>>>>=20
>>>>=20
>>> _______________________________________________=20
>>>=20
>>> tigers@autox.team.net=20
>>>=20
>>> Donate: http://www.team.net/donate.html=20
>>> Archive: http://www.team.net/pipermail/tigers http://autox.team.net/arch=
ive=20
>>>=20
>>> Unsubscribe: http://autox.team.net/mailman/options/tigers/garywinblad@co=
mcast.net=20
>>>=20
>>>=20
>> _______________________________________________
>>=20
>> tigers@autox.team.net
>>=20
>> Donate: http://www.team.net/donate.html
>> Archive: http://www.team.net/pipermail/tigers http://autox.team.net/archi=
ve
>>=20
>> Unsubscribe: http://autox.team.net/mailman/options/tigers/jbbrown1980@gma=
il.com
>>=20
>>=20
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div dir=3D"ltr"></div><div dir=3D"ltr">I f=
ound the original horns in a box but they did not work. I might give the Hel=
las a try</div><div dir=3D"ltr"><br><blockquote type=3D"cite">On Sep 25, 202=
3, at 4:48 PM, Joe Brown <jbbrown1980@gmail.com> wrote:<br><br></block=
quote></div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF<div dir=3D"=
ltr">I attempted to repair my original horns but the wiring inside was crumb=
ling. I saved them for a future project. What I installed in my c=
ar was a pair of Hella dual trumpet horns. You can see them at <a=
href=3D"https://www.summitracing.com/parts/hla-007424801";>https://www.summi=
tracing.com/parts/hla-007424801</a>. They come with a relay and they m=
ount up in the original locations with the original wiring. I didn't u=
se the relay but I might go back and add it. I tested them before I in=
stalled them and they were really loud but they didn't seem to be as loud af=
ter I installed them. So I'm guessing that if I rewire them and use th=
e relay I can get more current to them and have a louder sound.<div><br></di=
v><div>Have Fun,</div><div>Joe Brown</div></div><br><div class=3D"gmail_quot=
e"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, Sep 25, 2023 at 3:21=E2=80=AF=
PM GARY WINBLAD <<a href=3D"mailto:garywinblad@comcast.net";>garywinblad@c=
omcast.net</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D=
"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-lef=
t:1ex"><u></u>
=20
=20
=20
<div>
<div>
Most all aftermarket horns have only one terminal or have 2 terminals tha=
t are both 12V.
</div>=20
<div>
There was only one brand that Paul Reisentz found to use.. I wish I could=
remember.
</div>=20
<div>
I think it was SPAL (the fan guys) but googling I can't find them.
</div>=20
<div>
</div>=20
<div>
I remember because I dissected a defective original horn for him. U=
nlike Theo, I couldn't
</div>=20
<div>
see any way to fix that one.
</div>=20
<div>
</div>=20
<div>
Bob, you will probably need to look for some original horns (that still w=
ork) or add a relay for the
</div>=20
<div>
fans you already have.
</div>=20
<div>
Gary W.
</div>=20
<div>
</div>=20
<div>
</div>=20
<blockquote type=3D"cite">=20
<div>
On 09/24/2023 8:08 PM PDT Bob Wanty <<a href=3D"mailto:bobwanty@gmail=
.com" target=3D"_blank">bobwanty@gmail.com</a>> wrote:
</div>=20
<div>
</div>=20
<div>
</div>=20
<div dir=3D"ltr">
</div>=20
<div dir=3D"ltr">
My horns have a single terminal so I will get two terminal horns. The re=
lay idea sounds good.
</div>=20
<div dir=3D"ltr">
Thanks for the help.
</div>=20
<div dir=3D"ltr">
Bob
</div>=20
<div dir=3D"ltr">
<br>=20
<blockquote type=3D"cite">
On Sep 24, 2023, at 9:45 PM, Theo Smit <<a href=3D"mailto:tsmit@shaw=
.ca" target=3D"_blank">tsmit@shaw.ca</a>> wrote:
<br>
<br>
</blockquote>=20
</div>=20
<blockquote type=3D"cite">=20
<div dir=3D"ltr">=20
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt;col=
or:rgb(0,0,0)">=20
<div>
Hi Bob,
</div>=20
<div>
</div>=20
<div>
The wiring diagram here: <a href=3D"http://tigersunited.com/resources=
/wsm/tt-images/MKIABIGwiring.jpg" target=3D"_blank">http://tigersunited.com/=
resources/wsm/tt-images/MKIABIGwiring.jpg</a> shows two solid purple wires t=
o the horns feeding 12 volts, and two purple with black stripe wires that ar=
e the horn ring connections. There is no separate jumper wire from one horn t=
o the other; if your car has that then it was added by a previous owner.
</div>=20
<div>=20
<div>
<Screenshot 2023-09-24 at 7.34.26 PM.png>
</div>=20
</div>=20
<div>
</div>=20
<div>
But, if the horns already start to sound when you connect just the ho=
t side, then there is an internal short in at least one horn, which is not h=
ow it's intended to be. if you have an ohm-meter that can measure very low r=
esistances then you can take measurements across the two horn terminals and f=
rom each terminal to the horn body (or the frame mount). That would help you=
isolate where the wiring problem is.
</div>=20
<div>=20
<div>
<Screenshot 2023-09-24 at 7.38.18 PM.png>
</div>=20
</div>=20
<div>
This is a sketch of the high-tone horn. The low-tone horn has an L ca=
st into the bell. The two terminals connect (through the wire coil and the p=
oints) to each other, but there should be no connection to the horn body its=
elf. The way you're describing the operation of your horns, connecting one o=
f the terminals to hot causes the horn to go, even if the other wire is not c=
onnected (or, without pushing the horn ring on the steering wheel).
</div>=20
<div>
</div>=20
<div>
Do both horns work the same way (i.e. they go off when only the hot i=
s connected) or does only one horn do that? If one horn works properly (conn=
ect the purple wire to one terminal, connect the purple-with-black-stripe wi=
re to the other) then that horn is fine and it's the other one that has an i=
nternal short. It can probably be fixed by opening the horn up and figuring o=
ut where the short is.
</div>=20
<div>
</div>=20
<div>
Theo
</div>=20
<div>
</div>=20
<hr id=3D"m_-7690374029801399408zwchr">=20
<div>
<strong>From: </strong>"Bob Wanty" <<a href=3D"mailto:bobwanty@gma=
il.com" target=3D"_blank">bobwanty@gmail.com</a>>
<br><strong>To: </strong>"Theo Smit" <<a href=3D"mailto:tsmit@shaw=
.ca" target=3D"_blank">tsmit@shaw.ca</a>>
<br><strong>Cc: </strong>"Tom Witt" <<a href=3D"mailto:atwittsend@=
verizon.net" target=3D"_blank">atwittsend@verizon.net</a>>, "tigers" <=
<a href=3D"mailto:tigers@autox.team.net"; target=3D"_blank">tigers@autox.team=
.net</a>>
<br><strong>Sent: </strong>Sunday, September 24, 2023 6:41:37 PM
<br><strong>Subject: </strong>Re: [Tigers] Horn Wiring
</div>=20
<div>
</div>=20
<div>=20
<div dir=3D"ltr">
Thanks for the responses.=20
<div>=20
<div>
Everything is wired to the horns, they look original. There are 2 p=
urple wires to each horn, one is hot from the fuse box the other wire goes t=
o ground when the horn ring is pressed. When I plug the hot wire to the =
; horn it works fine, even honks. So the horns must not be original since th=
ey are grounded to the frame. I still have 4 purple wires when I only h=
ave connections for two and the wiring diagram only shows two wires, one to e=
ach horn.
</div>=20
</div>=20
<div>
So should I isolate the horn frame ground, plug the hot wire to the=
horn, use the existing jumper between the horns and connect the horn ring w=
ire to the other horn?
</div>=20
</div>=20
<br>=20
<div class=3D"gmail_quote">=20
<div class=3D"gmail_attr" dir=3D"ltr">
On Sun, Sep 24, 2023 at 1:50=E2=80=AFPM Theo Smit <<a href=3D"ma=
ilto:tsmit@shaw.ca" rel=3D"noopener" target=3D"_blank">tsmit@shaw.ca</a>>=
wrote:
</div>=20
<blockquote>=20
<div dir=3D"auto">=20
<div dir=3D"ltr">
</div>=20
<div dir=3D"ltr">
Correct except that Rootes (or Lucas) would never use a relay whe=
re they could instead pass all the current through a finicky sliding contact=
.
</div>=20
<div dir=3D"ltr">
</div>=20
<div dir=3D"ltr">
Bob, the horns, when properly adjusted, draw about three amps eac=
h. It would be a good idea to wire in a cube type relay so that the ring con=
tact does not have to pass that much current.
</div>=20
<div dir=3D"ltr">
If you like I can draw up a wiring diagram for that.
</div>=20
<div dir=3D"ltr">
</div>=20
<div dir=3D"ltr">
Theo
<br>=20
<blockquote>
On Sep 23, 2023, at 10:52 PM, Tom Witt via Tigers <<a href=3D=
"mailto:tigers@autox.team.net"; rel=3D"noopener" target=3D"_blank">tigers@aut=
ox.team.net</a>> wrote:
<br>
<br>
</blockquote>=20
</div>=20
<blockquote>=20
<div dir=3D"ltr">=20
<p>I believe most horns have a relay and the 12v+ is already at s=
aid relay. When the horn ring makes contact it GROUNDS the relay (completing=
the circuit) and the relay contact points connect. That passes through the 1=
2V+ to the horns. So, typically the horn ring simply grounds the relay to ac=
tivate it. Sorry too late for me to check the manual for Tiger specifics but=
MOST cars function that way.</p>=20
<p> Think of yourself standing at a light switch in the hou=
se. When someone presses you on the shoulder (connecting to ground) you and t=
he switch act like the relay moving the switch to the on position. This then=
send power to the light (horn). When the person pressing on your shoulder r=
eleases you turn the switch off. Hope that helps.</p>=20
<div>
</div>=20
<div>
On 9/23/2023 5:59 PM, Robert Wanty wrote:
</div>=20
<blockquote>=20
<div dir=3D"ltr">
I am working on wiring the horns for the first time since my 1=
5 year restore. I am working with the original wiring harness and horns. Sta=
rting at the horns there is one on each side with a jumper wire betwee=
n the two horns, there are 2 purple wires leading to each horn, one wire on e=
ach side is hot and wired to the fuse box the second wire is not hot o=
r grounded. I installed a new horn ring from SS and have one wire from the c=
ontact on the horn ring and a second wire for the circle contact off the sig=
nal switch, I think the wire for the circle contact should be hot but I=
don't seem to have a connector for it in the harness under the dash and not=
hing for the wire to the horn ring.=20
<div>
It would seem to me that I should have a hot wire to the ring=
contact then a hot to the horns when the horn ring is pressed. but the wiri=
ng harness does not seem to follow that way of thinking.
<br>=20
<div>
The wiring diagram is some help but as usual my limited know=
ledge on this will probably start a fire.
</div>=20
<div>
Any help would be appreciated, I would rather not rewir=
e the circuits so hopefully I can restore the Lucas <a href=3D"http://system=
.to" rel=3D"noopener" target=3D"_blank">system.to</a> its original splendor.=
</div>=20
<div>
</div>=20
<div>
</div>=20
<div>
Bob
</div>=20
<div>
</div>=20
<div>
<br>=20
<div>
</div>=20
</div>=20
</div>=20
</div>=20
<br>=20
<pre>_______________________________________________
<a href=3D"mailto:tigers@autox.team.net"; rel=3D"noopener" target=3D"_blank">=
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"_blank">http://www.team.net/donate.html</a>
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ilman/options/tigers/atwittsend@verizon.net</a>
</pre>=20
</blockquote>=20
</div>=20
</blockquote>=20
</div> _______________________________________________
<br>
<br><a href=3D"mailto:tigers@autox.team.net"; rel=3D"noopener" targe=
t=3D"_blank">tigers@autox.team.net</a>
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<br>
<br>
<br>
</blockquote>=20
</div>=20
</div>=20
</div>=20
</div>=20
</blockquote> _______________________________________________
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</div></blockquote></body></html>=
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