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tail light wiring

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tail light wiring
#1
6480 Anthony C
Prescott, AZ, USA   USA
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1951 MG TD
1951 MG TD
Working on my ''51 TD. The previous owners cobbled up most of the wiring over the years. Does anyone have a SIMPLE wiring diagram that will allow me to run new wiring to the tail light/brake light/plate light at the rear of the car. I wouldn't mind cutting the existing "harness" at the rear axle and starting fresh at that point. Also...the bulb sockets have been "worked on". I would like to replace them without braking the piggy bank. Any suggestions are appreciated. Thanks!

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Re: tail light wiring
#2
Charles94 Avatar
Charles94 Chip Long
Matthews, NC, USA   USA
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1964 Austin-Healey 3000
I collected wiring diagrams as I reassembled a TF. This is my favorite (I believe its TD).


Chip Long
Charlotte, NC


Attachments:
TD Wiring great color.pdf    105.1 KB

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Re: tail light wiring
#3
6480 Anthony C
Prescott, AZ, USA   USA
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1951 MG TD
1951 MG TD
Thanks! In addition.....the bulb sockets that someone installed [ I don't think they are original ] have what looks like a small round connection point [for a bullet connector??] which is a part of the metal frame of the socket. Is this the grounding point?

The existing sockets each have 3 white wires coming off them....my guess is that they are not original. Do you have any idea as to which wires go where? Thanks again!

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Re: tail light wiring
#4
Paul J Avatar
Paul J Silver Member
Locust Grove, OK, USA   USA
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1955 MG TF 1500
Ones for the brake and turn signal, ones for the tail light and the other is ground. The ground should be easy to identify, the brake and turn signal is the brightest filament in the bulb. PJ

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Re: tail light wiring
#5
peter14222 Avatar
peter14222 Peter Gilvarry
Buffalo, NY, USA   USA
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1955 MG TF 1500
The brake/turn signals come from pins 3 & 7 of the relay box for the brake/turn signals.

A test lamp is worth it's weight in gold times 10, allows testing.

Peter

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Re: tail light wiring
#6
6480 Anthony C
Prescott, AZ, USA   USA
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1951 MG TD
1951 MG TD
Thanks! Just uncovered the wires that I THINK are the originals. One each of white...yellow and green? Do you know which color goes to which spot on the bulb socket?

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Re: tail light wiring
#7
Ctwidle Chris Twidle
Reesville, Queensland, Australia   AUS
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1954 MG TF
Here is my prototype of a very none pc take on TF tail lights. The LED ring replaces the chrome trim ring after slicing off some of the rubber. It’s stuck on with silicone.

When you identify the earth wire poke the strands through a bullet connector and spread them back around it and they will fit quite well into the ‘grounding’ tube or you can buy a ‘plug’ to solder on. Your other two wires will be a 50/50 bet on brake/flasher and tail light.

I had to run two extra wires in my new harness so I could operate the separate amber indicator. They will also be part of a hazard light system. The tail/brake bulb is now LED and the electronic flasher relays have a built in ‘click’.

At least your wires have some colour coding, my harness came in a bucket. All the wires were yellow and all of the terminals had been cut off....


Attachments:
D06C4183-5D70-4BAA-8E87-386D91174540.jpeg    39.2 KB
D06C4183-5D70-4BAA-8E87-386D91174540.jpeg

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Re: tail light wiring
#8
MGTF1500 Ardeche France Avatar
MGTF1500 Ardeche France Thierry SUCHIER
TOURNON SUR RHONE, Rhône-Alpes Auvergne, France   FRA
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1955 MG TF 1500
Hello Chris,
Is it possible to have more detail on this new installation?
I had thought of adding two turn signals separated from the brake lights using wires 14 and 15.
I just had to add a green and purple wire for the brake lights.
But the idea of this circle led around the stop lights for the turn signals is interesting! These circles would prevent me from adding these blinking globes.
What are the parts for electronic flash relays that have a "click"?
Best regards, Thierry l'Ardéchois


Attachments:
Détail cablâge clignotants.jpg    18.2 KB
Détail cablâge clignotants.jpg

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Re: tail light wiring
#9
Declan Burns Avatar
Declan Burns
Duesseldorf, NRW, Germany   DEU
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1952 MG TD
1964 Morris Minor 1000 Tourer "Moggy"
Thierry,
Her is my drawing on how to wire up the indicators and brake light. It also shows how to add the acoustic relay on the indicator circuit.
Regards
Declan


Attachments:
TD_indicator_wiring.pdf    75.3 KB

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Re: tail light wiring
#10
Ctwidle Chris Twidle
Reesville, Queensland, Australia   AUS
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1954 MG TF
Bonjour Thierry,
In the original diagram 14 and 15 are connected to the brake lights and use the “direction indicator relay” to make them flash, I no longer use this relay. There were no separate clignotant lamps. I had to add “22” wires for the brakes.
The LED rings were found on eBay and are 70mm outside diameter and about 63 inside. The wires are drilled through the rubber mounts and the plinth then into the rubber tube. They are not + earth so had to be connected ‘backwards’.
The relays (I use a second one for the hazard lights) came from “classiccarleds.co.uk” part number CF13APL-R-C, 3P 12v LED Flasher, Positive Earth. The P lead goes to the green light on the dash (another LED), X to - ve supply and L to the switch.
Bonne chance,
Chris

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Re: tail light wiring
#11
MGTF1500 Ardeche France Avatar
MGTF1500 Ardeche France Thierry SUCHIER
TOURNON SUR RHONE, Rhône-Alpes Auvergne, France   FRA
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1955 MG TF 1500
Thank you Chris, thank you Declan,
I'll study it quietly.
Good day, Thierry

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