24-04-2024, 02:44 PM
(This post was last modified: 24-04-2024, 02:57 PM by Tony Griffiths.)
Presumably, you are running a 6-volt system and on many cars, these can be a nightmare to get working properly. In a previous comment, I wrote that one of my Sevens works perfectly with 6-volt LED bulbs and an electronic flasher unit but another does not - and nothing would persuade it to work with the dynamo charging. Hence, I'd recommend what I and others have done, change to a separate 12-volt system powered by a small 12-volt motorcycle or similar type of battery. You might find that this works perfectly with your existing electronic flasher unit and LED bulbs (your 6-volt bulbs might even be a "dual-voltage" type and still work) - but, if interference from the ignition circuit or dynamo is still having a detrimental effect (as it was on my 'problem' car) just change to ordinary 21-Watt bulbs and a mechanical flasher unit. It will then work perfectly with very bright flashers. I've summed up the whole saga as far as possible here: http://www.lathes.co.uk/austin-7-indicators
BTW I now have David's car with the stairlift battery. Goodness knows how old that battery is - probably 25 years at a guess - but it still works perfectly and the other day, having left the indicator on all night, they were still flashing in the morning. Another note: our Ruby runs a 12-volt system with LED bulbs - but powered not by a separate battery, but a 6-volt-to-12-volt step-up transformer. This too has proved reliable and the flashers very bright.
BTW I now have David's car with the stairlift battery. Goodness knows how old that battery is - probably 25 years at a guess - but it still works perfectly and the other day, having left the indicator on all night, they were still flashing in the morning. Another note: our Ruby runs a 12-volt system with LED bulbs - but powered not by a separate battery, but a 6-volt-to-12-volt step-up transformer. This too has proved reliable and the flashers very bright.