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Austinsevenfriends
What have you done today with your Austin Seven - Printable Version

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RE: What have you done today with your Austin Seven - AustinWood - 09-10-2022

I fitted LED bulbs supplied by Dynamo and regulator conversions. They work very well and there were no problems at all. It is essential that they have a good earth. There is a big range on offer on their web site.
The car is 1929 so has no main beam which simplifies things.
There has been no problem with them flickering which seems to happen to some.
I would not go back to incandescent bulbs. A big bonus is the tiny current draw they take which takes the load off the dynamo which was turned done to 4 Amps.

RE: What have you done today with your Austin Seven - Russlin - 10-10-2022

Hi AustinWood,  I also have fitted LED bulbs to my 1928 car and am happy with the conversion. My headlights do flicker at tickover which I had assigned to the bulb's sensitivity to segments in the commutator. At road speeds there is no flickering. The original 6 volt CAV dynamo is fitted.

When I fitted LED bulbs to the indicators they became erratic. This was overcome by adding a condensor next to the indicator canister. The original magneto has been replaced by coil and distributor.

Russlin

RE: What have you done today with your Austin Seven - Howard Wright - 10-10-2022

Hi All

I’m a fan of LEDs.  However I had problems with flickering at first and found the answer was to change the electronic flasher unit for a mechanical one. This did mean that I had to have two incandescent bulbs to pull sufficient current to activate the flasher.  I’ve since changed the ignition leads to silicon in order to overcome interference issues with an electronic rev counter and recently replaced the mechanical flasher back to electronic and now use LEDs all round.

EXCEPT….For my 6 volt trailer. In order to pull enough current to close the reed switch which operates the trailer warning buzzer I need incandescent indicator bulbs on the trailer  Smile.

Cheers

Howard

RE: What have you done today with your Austin Seven - Steve kay - 10-10-2022

Completely agree with the above. LED not only light up the highway in front of a Ruby speeding through the darkness, but the dynamo can easily keep up, the third brush can be set comparatively low rather than the desperate previous attempts to stop the battery from flattening overnight. Banned from the VSCC Measham of course, but for the brave amongst us, MCC scrutes will smile and let Sevens set off towards Exeter, Land End, Edinburgh and other points of the compass.

RE: What have you done today with your Austin Seven - Robin Boyce - 10-10-2022

Has anyone experience of LEDs in scuttle headlights?  I can light the surrounding countryside but not in front!   Undecided

RE: What have you done today with your Austin Seven - Howard Wright - 10-10-2022

(10-10-2022, 10:09 AM)Robin Boyce Wrote: Has anyone experience of LEDs in scuttle headlights?  I can light the surrounding countryside but not in front!   Undecided

Hi Robin

The Special has scuttle mounted lamps with quite strong LEDs and seems OK although I don’t do a lot of night driving. It probably works because I have cycle mudguards so very little light is thrown back at you.

Cheers 

Howard

RE: What have you done today with your Austin Seven - Reckless Rat - 10-10-2022

With any headlamp, the location of the bulb's main output has to be at the focal point of the reflector otherwise the beam will just be scattered. Knowing the focal length of the particular reflector will help with choosing a bulb that does the job. The centre of the incandescent bulb the LED replaces should be a good starting point.

RE: What have you done today with your Austin Seven - Dave Mann - 11-10-2022

I tried LEDs which gave loads of light at low amps but no beam because the LEDs weren't on the focal point of the reflector. Then one dark night on a country lane both LEDs failed leaving me in darkness till I switched back to sidelights, i returned the LEDs to the supplier who supplied two replacements FOC but I haven't got the bottle to fit them.

RE: What have you done today with your Austin Seven - Hugh Barnes - 11-10-2022

I think Stuart Joseph mentioned he was trialling LEDs with built in reflectors. These would presumably solve the beam 'focus' issue. It will be interesting to hear back from Stuart when he has had a chance to test them...

RE: What have you done today with your Austin Seven - Tony Griffiths - 11-10-2022

An upgrade to LEDs....only joking, Dave!
This bulb needs no reflector. I've not fitted them yet but, off the car, they give a powerful and focused beam. They are available in a number of different fittings shown here and available from: https://www.classiccarleds.co.uk/collections/classic-and-pre-war-headlight-leds