|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
08-21-2013, 09:50 AM | #1 |
Senior Member
Join Date: May 2010
Posts: 138
|
1940 horn relay
Building a 1940 Ford pickup. I ordered a horn relay on line several months ago (don't remember the company now). It has a sticker on it that says 6V, but when I examined it closely there was a 12v stamped into the metal cover. Any chance that it will work correctly on 6v?
Also, the terminals are stamped H, B, and S. I assume they stand for Horn, Battery and Switch? Thanks Barners. |
08-21-2013, 10:21 AM | #2 |
Senior Member
Join Date: May 2010
Location: Coral Springs FL
Posts: 10,950
|
Re: 1940 horn relay
I am not 100% sure re: your electrical questions, but here's a wiring diagram to help.
|
Sponsored Links (Register now to hide all advertisements) |
|
08-21-2013, 10:39 AM | #3 |
Senior Member
Join Date: Oct 2011
Location: Shelton, WA
Posts: 3,800
|
Re: 1940 horn relay
Since a relay is simply an electrically activated switch, and 6v wires and connectors are heavier then 12v, I would be concerned that the internal contacts and parts in the relay you have might be too light. It would probably work, but for how long?
|
08-21-2013, 11:16 AM | #4 |
Senior Member
Join Date: Oct 2010
Location: Orem, Utah
Posts: 5,762
|
Re: 1940 horn relay
I have used 12 volt relays with 6 volts and they worked fine.
__________________
Prof. Henry (The Roaming Gnome) "It is good to have an end to journey toward; but it is the journey that matters, in the end.” *Ursula K. Le Guin in The Left Hand of Darkness |
08-21-2013, 12:05 PM | #5 |
Senior Member
Join Date: May 2010
Location: Wisconsin, USA
Posts: 9,010
|
Re: 1940 horn relay
Authentic relays are readily available... I have to ask why chance an incorrect relay?
__________________
"I can explain it for you. However, I can't understand it for you". |
08-21-2013, 12:35 PM | #6 |
Member Emeritus
Join Date: May 2010
Location: Madison, NJ
Posts: 5,230
|
Re: 1940 horn relay
Sponsored Links (Register now to hide all advertisements)
|
08-21-2013, 02:40 PM | #7 |
Senior Member
Join Date: May 2010
Location: Canada
Posts: 571
|
Re: 1940 horn relay
Where is it supposed to be mounted on 40-41 pickups?
|
08-21-2013, 02:44 PM | #8 |
Senior Member
Join Date: Oct 2010
Location: Orem, Utah
Posts: 5,762
|
Re: 1940 horn relay
You can easily test the relay with 6 volts by hooking up the B (battery) terminal to one battery post, the H (horn) terminal to a test light, and touch the S (switch) side to the other battery post. If it clicks and the test light comes on it works.
__________________
Prof. Henry (The Roaming Gnome) "It is good to have an end to journey toward; but it is the journey that matters, in the end.” *Ursula K. Le Guin in The Left Hand of Darkness |
08-21-2013, 05:37 PM | #9 |
Senior Member
Join Date: May 2013
Location: Coos Bay, OR
Posts: 640
|
Re: 1940 horn relay
I used a similar relay to get mine working. I ran heavier gauge wire to BAT and HORN terminals (#10 I think) and lighter to switch (#12) It seems to work fine so far.
|
08-21-2013, 06:13 PM | #10 |
Senior Member
Join Date: May 2010
Posts: 138
|
Re: 1940 horn relay
I took the relay apart to look inside. The coil wire is very small gauge, but I believe most windings are fine wire. The only thing left is heavy connection terminals. The wiring going to it is same size as original.
Yes, I would gladly clean up an original used 6V horn relay but haven't located one. (The NOS ones on ebay are over priced.) |
08-21-2013, 10:42 PM | #11 |
Senior Member
Join Date: May 2010
Posts: 138
|
Re: 1940 horn relay
Had to eat my words. Just purchased an NOS one on ebay at a reasonable price. It is for an early 6v Ford. Nice to see that Made in the USA stamp.
|
|
|
Sponsored Links (Register now to hide all advertisements) |
|