Ignition light

[Aginley]

First start up and ignition light stays on?
Thoughts guys?

https://youtu.be/-pnSSizT6qk

[Dr S]

Wire knocked off the dynamo.

[Andrew1967]

Regulator not working ...

[woodypup59]

Repolarise the dynamo.

[Aginley]

I’ll try polarising Dynamo first then look at regulator.
Thanks

[iain1967s]

It looks bright. Did you by chance use an LED instead of a regular incandescent (filament) light bulb?

If so, you need to wire a resistor in parallel to the LED, else there's not enough current to drive the F of the dynamo.

[Aginley]

It looks bright. Did you by chance use an LED instead of a regular incandescent (filament) light bulb?

If so, you need to wire a resistor in parallel to the LED, else there's not enough current to drive the F of the dynamo.

No just normal Lucas bulbs

[AndyPen]

Perhaps too obvious but have you checked that the Dynamo is actually charging the battery?

I still suspect a flash over to polarise it might be required?

[Daz1968]

I had same with my mk1 and it was the points in regulator box, I took the box off and filed them clean, all was fine then, but if Dynamo been left standing will need Polarising as well.

[NickD]

The control box is a good place to start as, if the dynamo and wiring are healthy and correctly connected, and the dynamo is correctly polarised, then just about the only remaining possible reason for the warning light staying on is the regulator points in the control box not making contact. These are between items 6 & 7 in the diagram below and can be cleaned with some fine wet & dry paper:

RB106 Diagram.jpg

[Fanfaniracing]

Just have the same issue on my 62 Traveler. The car was standing for a year and now if i start it the red
Light stays on. Worked fine when i parked it up last autumn...

[Aginley]

Polarised Dynamo. Ignition light now goes off.
Superb thanks

[rogerotto66s]

Just had the same problems on my positive earth 1966 Cooper S :
- Red Ignition light stays on
- car shuts off when battery ground cable disconnected.

Performed these tasks :
- Polarized the dynamo
- cleaned regulator points
- adjusted regulator gap

With these results :
- red ignition light goes off after startup
- car still shuts off when battery ground cable disconnected

The above results were performed when the engine was idling.
When I increased the RPMs and disconnected the battery ground cable the engine DID NOT shut off.

So ... I believe my dynamo and voltage regulator are now functioning properly.