Headlight wiring

[Random]

On my 2b the headlights seem to have side, dipped, and main beam but only three wires. Any idea how these are wired up? 

When I test them with a battery the wires are black, green, red. Connect black and green is dipped, black and red is full beam, and green and red is sides.

 

[Jez Morton]

Sounds like green and red is both filaments on in series so will be a duller light. Doesn't sound like you have sides in there that would need a fourth wire.

[Random]

I assume sides have to be in the same unit? It is a sealed unit inside the headlight housing, so have been looking for a replacement unit that does include sides.

[Bob Tucker]

https://www.speeding.co.uk/7-inch-pair-sealed-beam-headlights-halogen-conversion-848-p.asp

[Random]

Awesome. Thanks.

 

[sylvia.fry2]

Chassis earth the 4th wire ?

[Random]

Good thinking, but it is three pins in the back of the glass sealed unit.

[Sparepart]

On my sealed beam units there is a clear circle on the reflector below the main fillaments. The big connector that plugs on to the three pins (for the main and dip and earth connection) has a a small bulb mounting attached so that the 12 wat side light, with it's own small reflector is held right against the clear window in the reflector. Thus there are four wires involved. It seems to me that you do not have the small reflector etc.

 

https://www.autoelectricalspares.co.uk/bulb-holder--wiring-loom-angled-with-pilot-light-window-for-sealed-beam-headlamps-2613-p.asp

[Random]

It does seem like I am missing that. I wonder if the lights originally came with the kit.

[sylvia.fry2]

Our 2B kit was short of the side light pods --- think CBS or similar company were able to supply correct parts.  But they are still just glow-worms --- maybe better to fit LED angel eyes if up grading from the sealed beam units which in themselves are not bright.

[Random]

Interesting. I ordered the conversion kit which I am fitting at the weekend.

[fry61]

Hope it works out for you, we added 55 watt spots to boost the head beam.

[Random]

Great idea. Will have to do that if I ever get it on the road.

[Random]

Conversion kit worked great.