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MG MGA - Wiring loom routing - 1500 single cam

I am slowly doing some major work on my 1500 RHD single cam roadster. Currently working on replacing the wiring loom behind the dash and in the engine bay across the firewall/heater shelf.
Why? It is a long story, suffice to say 10 years ago I nipped the numberplate lamp hot wire when replacing the lamp cover and it melted a lot of the red wire coverings all the way back to the ignition switch before I realised where the smell was coming from when I turned the lights on (an unfused circuit). Temporary repairs back then (burnt wires wrapped in masking tape) have lasted until now so while doing the Vitesse MX5(Miata) 5-speed conversion, overhauling the engine, converting the brakes to DOT 5 and repainting the parcel shelf, I thought now would be a good time to replace the loom!

What I am after are photos of the wiring loom layout across the firewall from the engine side on similar cars that members think are fairly original showing the routing and clamping along the firewall, under the master cylinder and across to the wiper motor and to the dipper switch.

Todd Clarke's MGA Owner's Info and Tech Guide gives a lot of useful info but it is for LHD cars (see attached) but would like to see photos of an original RHD car.

Cheers
Mike






Mike Ellsmore

Hi Mike
I replaced my loom when rebuilding a few years ago. I also made carefull note of the grommets and colour(not for concours)my own choice.
I will try to add some more photos, for you.
Hope it helps
Cheers Brian (UK)





Brian Paddon

Hi Mike
I realised that you have a 1500. Mine is a 1600, but still might be useful
Cheers Brian (UK)
Coming to Canberra in April





Brian Paddon

Thank Brian,
Yes your pics are helpful. Enjoy Canberra, a very unique city, about 420 miles north of Melbourne where I live.
Cheers
Mike
Mike Ellsmore

I found the photo I was after, from Modern Motor 1956 Road Test "As Good asst Looks" republished by Brookland Books in MGA and Twin Gold Portfolio.


Mike Ellsmore

This thread was discussed between 02/02/2025 and 03/02/2025

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