<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">That doesn’t seem to be correct. There should be two horns, and they should be mounted further forward, toward the bonnet latch platform, one on ether side. That is also not the original type of horn.<div class=""><br class=""></div><div class="">I am sure you can find a drawing showing this in either the Bentley manual or the Moss Motors catalog.<br class=""><div class=""><br class=""></div><div class="">You can tell that the horn wire is being stretched to reach the current location.</div><div class=""><br class=""><div class="">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="margin: 0px; font-size: 13px;" class="">--</div><div style="margin: 0px; font-size: 13px; min-height: 16px;" class="">Max Heim</div><div style="margin: 0px; font-size: 13px;" class="">'66 MGB</div></div></div>
</div>
<div><br class=""><blockquote type="cite" class=""><div class="">On Aug 10, 2021, at 10:01 AM, Michael MacLean <<a href="mailto:springer.mike51@gmail.com" class="">springer.mike51@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="">Speaking of horns, my 1969 MGB GT has only one horn. Is that original? It has two wires going to it. It works OK, but it just sounds weak. What is a good alternative? Can I wire two horns here?</div><div class="">Mike MacLean<br class=""></div></div><br class=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Aug 10, 2021 at 2:49 AM PaulHunt73 <<a href="mailto:paulhunt73@virginmedia.com" class="">paulhunt73@virginmedia.com</a>> wrote:<br class=""></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u class=""></u>
<div style="overflow-wrap: break-word;" bgcolor="#ffffff" lang="EN-US" class="">
<div class="">The horn wiring changed on late model cars so that the stalk button puts
out 12v to the horns, and the horns only have one wire each as they pick up an
earth from their mountings.</div>
<div class=""> </div>
<div class="">As such the horn push should have purple (12v, fused always live) and
purple/black (to the horn) wires. First thing to check is, does the
interior light work? If not maybe the purple supply from the fusebox has failed,
bottom fuse.</div>
<div class=""> </div>
<div class="">If so, with it lit press the horn button. Does it go out? If so
then there is a bad connection back through the fusebox.</div>
<div class=""> </div>
<div class="">Next it depends on whether it is easier for you to check the wiring at the
multi-plug by the column, or at the horns. In the former case look for the
purple and purple black wires and check them (connector still plugged together)
for 12v on the purple all the time, and on the purple/black when the button is
pushed. If on the purple but not the purple/black the switch or wiring in
the stalk is faulty. Sometimes the wires are moulded into the connector
blocks so you can only test by parting the connectors just enough to expose the
pins, but they are still making contact.</div>
<div class=""> </div>
<div class="">At the horns with the button pressed you should have 12v on the
purple/black spades on the horns (wiring connected). If not and the
test at the column multi-plug was good then the circuit back to there is faulty,
most likely is a bad connection between the wiring connector and horn
spade.</div>
<div class=""> </div>
<div class="">If you see 12v on the horn spade check a clean part of the horn body
for 12v as well. If you see that then the horn earthing is bad. If you saw
12v on the purple/black spade but not on the body then the horn is bad
internally.</div>
<div class=""> </div>
<div class="">It might seem unlikely that the fault is at the horns in both cases, but
anything is possible.</div>
<div class=""> </div>
<div class="">BTW stuff the trumpets with rags to avoid getting a loud blast if you
disturb the fault and one or other should suddenly start working :o)</div>
<div class=""> </div>
<div class="">PaulH</div>
<blockquote style="border-left:2px solid rgb(0,0,0);padding-left:5px;padding-right:0px;margin-left:5px;margin-right:0px" class="">
<div style="font:10pt arial" class="">----- Original Message ----- </div>
<div class=""><br class=""></div>
<div class="gmail-m_-4576391806103799009WordSection1"><p class="MsoNormal">We’re working on a 1980 B with a maddening assortment of
electrical problems. Right now we’re trying to figure out why the horn
push won’t work—and all the wiring diagrams (Bentley & Advance
Autowire)—show the horn as having purple wiring—apparently meant for the
horn push in the steering wheel button, not the push-in-the-wiper-stalk of
this car. Any advice from the List?</p></div></blockquote></div>
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