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MG TD TF 1500 - Signal Lights

Hello everyone. I find myself in need of the brain trust again. I have a 1953 TD, that has been on the road for a number of years and has always functioned well. Last year the signal lights stopped working. For a short time the lights, either left or right, would come on but not flash. Simple right, flasher gone. I have three, and none work. I have changed the Moss motors electronic relay for the old original one, no joy. I have check wires, bulbs, and everything else I can think of. When I move the switch to left or right, I can hear the relay click, but no signalling takes place. The brake lights, that are also controlled by the relay do work fine.

I will welcome any suggestions. I may be waving my arm around this summer instead of flashing.

Cheers

Joe
Joseph D Hine

Guys, I just had a senior moment. I searched the archives and may have found the answer to my signal light problem. The answer may have come from me. I apparently had this problem in 2008 and the problem was the flasher being wired wrong. I am going to go out and try it now to see if I have repeated history.

Joe
Joseph D Hine

Seems odd that apropos of nothing it would require itself (incorrectly I might add) I get that an initial wiring setup can be done incorrectly (don’t ask me how I know) but to go from working fine to not working when you have not touched anything and it is an incorrectly routed wire??
Not sure I see that, but it is late and I may have misread the post.
Regards, Tom
tm peterson

From what you have said. I would invest in a new flasher unit and try that before swapping any wiring If it worked before - nuff said.
Won't cost you much and at worst you will have a spare
:)
Rod Jones

I had a similar experience and it was a blown fuse. Days of agony and it came down to me expecting the worst case instead of something simple.
Peter Dahlquist

To clear up some confusion, I have two wire diagrams, one off ebay in colour, and the one from the workshop manual. They differ in how the flasher unit is wired. I can confirm that this morning I went and change to wires to what the shop manual says and the flashers work. This is what I've had since the car was put on the road. The flashers stopped working while the car lived at my sons for two years when I was having storage issues. He was driving the car. I can only assume for some reason he changed the flasher. In any case, they seem to be working well now.
Joseph D Hine

Good news
Regards, Tom
tm peterson

Hello to you all who children who drives the car.
Do not let them mess whith the car. I know.

Thoralf NORWAY TD 4490
Thoralf Sorensen (TD4490)

Joe,

I had a similar issue with the flasher relay, It would
work on the test bench but not in the car. I found the problem, it is in the construction of the relay.
The relay contact, the spring body and the external wire terminal, are ONE single piece. This is fixed to relay base board by only ONE rivet. What was happening was when I wired the unit in the car, when tightening the terminal screws, the terminal,spring and contact was rotating on this sole rivet, thereby causing a misalignment between the fixed and moving contact of the relay. The cure was not to over tighten the terminal screws.

John

J Scragg

This thread was discussed between 29/03/2023 and 30/03/2023

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