Early Days of my Model A – Part 3 The Project Begins Headlamps and Wiring

Upon inspection I found that the majority of the front wiring look was either missing or not in great shape and the headlamps were empty!

So I started with the headlamps and wiring from scratch

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Stop Lamp Wiring

Whilst the brake work recently we fitted a new brake light switch. The wiring done by the previous owner was pretty untidy, so with some loom covering, cloth tape etc it all looks a bit better!

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A Day in Harness

Spent the day trying to put the wiring loom into some kind of working order as far as the lighting is concerned. The wiring is mostly original bit has been cut around quite a bit…

Broke a rear lens because the previous owner had cross threaded the lens screws, blew a few fuses but getting there slowly!!

Mrs F kindly went to get fuses 🙂

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Triumph Herald Alternator Conversion Progress(2) (originally published in 2008)

Alternator now in place with home made fan belt adjusting arm extension. not pretty but it works.

I also need to find a slightly longer fan belt, no luck as yet however.


All well after a test start and run without the wiring connected.

The wiring was interesting to say the least!

Most of the instructions and wiring colours on the net and various other sources do not apply to our car.

The brown and various brown variants were all to be found at the regulator box as expected.

Additionally our car had a thick yellow and a thin yellow and green coming from the alternator.

The thick yellow is to be joined to all the browns as per the usual instructions, the thin yellow and green is to be joined to the thin yellow at the regulator for the warning light.

A lot of instructions suggest either soldering the various wires or adapting the regulator as a junction box.(all good ideas BTW)

I have taken a different approach, I got an earth bar from Screwfix and joined all the wires up that way.

Something like this:

http://www.screwfix.com/prods/11385/Electrical-Supplies/Earthing/8-Way-Earth-Block

This will then be insulated by placing in a project box from Maplin:

http://www.maplin.co.uk/Module.aspx?ModuleNo=1677

This will then be mounted in the space where the regulator used to live 🙂

WARNING !!!

If you want to try this be very careful that the earth bar does not earth out at any point.

If it does you will be needing a fire extinguisher on the non fused Herald, be very careful!

I’m also considering the fitting of some inline fuses or maybe a small fuse box.