Stop Light Wire

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Original Smith
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Stop Light Wire

Post by Original Smith » Mon Dec 21, 2020 8:57 pm

Here is a setup I used on my 1925, to convert it to a stoplight. I'm using a factory taillight and license plate bracket. The bulb is used for Model A cowl lights to convert them to turn signals. I have to file one tab off the bulb to do this. I don't know why Snyder had to put an offset tab on this bulb, but that's Snyder for you! The license plate bracket is a Ford product, but must have been made after Model T production. It has a socket just like the headlights. If you hold it up to a light, you can see through it. I use a double filament pronged plug, which is spring loaded and old stock too. A single wire plug is available too. I've seen these at swap meets for years, especially at Chickasha. It works, but is not authentic, but looks like it. He is what I did with the extra wire going to the stop light. A '26-7 could be done the same way. It keeps the two wires together, and is old fashioned looking too. I used friction tape in a half dozen places, and used a piece of sheet metal, probably 20 or 22 gauge, 1/4" wide. Of course the wire in the example is not the correct color code, but you get the idea.
Attachments
1925 T Pick-up, 1-04-09 001.jpg
1925 T Pick-up, 1-04-09 001.jpg (54.38 KiB) Viewed 3020 times
Taillight 1.JPG

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Steve Jelf
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Re: Stop Light Wire

Post by Steve Jelf » Mon Dec 21, 2020 10:11 pm

I don't know why Snyder had to put an offset tab on this bulb...

I bet they didn't. More likely they bought bulbs of the right size and voltage and didn't think about the tabs.
The inevitable often happens.
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TRDxB2
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Re: Stop Light Wire

Post by TRDxB2 » Tue Dec 22, 2020 1:38 am

If these were the bulb you ordered from Snyders they specified for use with the socket they sell having offset pins. Model T sockets are designed for straight pins and dual filament bulbs have offset pins - done to prevent putting the wrong bulb in the wrong socket.
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bb 1.jpg
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Mark Nunn
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Re: Stop Light Wire

Post by Mark Nunn » Tue Dec 22, 2020 8:40 am

Don't bother with filing off the offset pin, just install it. I've had two bulbs ruined because the bayonet is thin and soft. When installing the bulbs, one pin crushed until flush with the body and cannot be repaired without excessive effort. The taillight on my '26 didn't have a socket when I got it. I installed a to 2-pin socket and it works great. But, the bulbs are junk and it took me three to get one to work.


sweet23
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Re: Stop Light Wire

Post by sweet23 » Tue Dec 22, 2020 9:20 am

This is not original, and should not be installed on a Model T for any reason. If Henry thought you needed a stop light he would have provided it.


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Original Smith
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Re: Stop Light Wire

Post by Original Smith » Tue Dec 22, 2020 10:47 am

Henry did provide an accessory taillight in 26-7, and that is the set up I used, except as you can see, I didn't use the taillight.


sweet23
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Re: Stop Light Wire

Post by sweet23 » Tue Dec 22, 2020 11:32 am

I was just giving you a hard time anyway.

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Dual Filament bulbs use straight and off set pins.

Post by Novice » Tue Dec 22, 2020 1:04 pm

Many dual filament bulbs have straight/parallel pins. such as the model T headlight bulbs. I have what appears to be a original 1926 tail light / stop light. It has a clear window for license plate lighting. it uses two single base contact bulbs with parallel pins. one high wattage bulb for stop and a lower wattage bulb for tail light. two straight through sockets that use headlight type single pin connector. I understand Stop lights were available on 26 /27 model Ts with the brake switch that mounts on the starter Bendix. The 1157 type bulb has off set pins and the 1156/1158 have parallel pins. dual filament automotive bulbs weren't introduced until the forties ?


big2bird
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Re: Stop Light Wire

Post by big2bird » Tue Dec 22, 2020 6:22 pm

The offset pins insure that the lower wattage running light and the higher wattage stop light align with the designated contact when the lamp is installed.


Mark Osterman
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Re: Stop Light Wire

Post by Mark Osterman » Tue Dec 22, 2020 8:32 pm

That’s quite a distance way under the pickup box. Have you thought of bringing it to a place where it might be more easily seen?


big2bird
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Re: Stop Light Wire

Post by big2bird » Tue Dec 22, 2020 9:27 pm

Mark Osterman wrote:
Tue Dec 22, 2020 8:32 pm
That’s quite a distance way under the pickup box. Have you thought of bringing it to a place where it might be more easily seen?
I have to agree. Isn't there a 26-27 rear fender bracket?


Topic author
Original Smith
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Re: Stop Light Wire

Post by Original Smith » Wed Dec 23, 2020 10:15 am

I took some pictures yesterday of the components I used for this project. Will try to post them soon, but I'm painting fenders today.


Topic author
Original Smith
Posts: 3284
Joined: Tue Jan 08, 2019 10:43 am
First Name: Larry
Last Name: Smith
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Location: Lomita, California
MTFCA Number: 121
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Re: Stop Light Wire

Post by Original Smith » Thu Dec 24, 2020 10:13 am

Here are the photos of the parts I used to convert my stock 1925 taillight to a stop light. As I mentioned I can't see any difference between the original, and the one I used, except for the straight through socket. The one in the picture is not the one on the car, but is a spare that I have.
Attachments
Socket.JPG
Rear View.JPG
Plug 2.JPG
Plug 1.JPG
Front.JPG


Topic author
Original Smith
Posts: 3284
Joined: Tue Jan 08, 2019 10:43 am
First Name: Larry
Last Name: Smith
* REQUIRED* Type and Year of Model Ts owned: 13 Touring, 13 Roadster, 17 Coupelet, 25 Roadster P/U
Location: Lomita, California
MTFCA Number: 121
MTFCA Life Member: YES
MTFCI Number: 16310

Re: Stop Light Wire

Post by Original Smith » Thu Dec 24, 2020 12:51 pm

Here is the genuine Ford stoplight switch I used.
Attachments
switch 1.JPG
Switch 2.JPG

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