Indicators issues

[Dullnote]

Hi needing some advice/ help .

I just changed indicator bulbs to LEDs , now when I start the car I can I see a flash through the lights just as the car starts, only for a split second.

Now when driving the car the indicators are playing up, sometimes not working other flashing very fast , then time work fine.

My thinking is the voltage stability unit could be the issue.

Sorry should say the car is MGB GT V8 1973

Jim

[Ian F]

Autoelectrics are not my strong point so I am happy to be corrected, but here are my thoughts.

The flasher unit may be totally confused by the low current drawn by the LEDs. I think you may need to revert to good old tungsten, or make some mods to the flasher unit.

Sound sensible?

Ian F

[Vic Butler]

You need a flasher relay for LED bulbs. I've got them on my Land Rover and with the correct relay they work properly. Try Paul Goff Lighting.

[Charles Farran]

Definitely need a flasher unit for LEDs . Another supplier , who knows his stuff, is Duncan at Classic Car LED Ltd. 0800 246 5678. (They have a very comprehensive web site).
Cheers,
Charles

[Dullnote]

Sorry should have been more clear, only changed indicator bulbs in the

My concern is the when starting the engine there is a fast flash on both indicator lights.

Regarding the relay, I change the dash lights on my own 1800 MGB with issues, changed nothing.

Thanks for the replies

Jim

[Allan T]

Hi Jim,

Could you take a spanner to your last post?

Allan

[Dullnote]

Hi Allan

Yes should read the post before submitting.

The lights were only changed in the dash, however found the person had changed the flasher unit, with cheap Chinese one. I changed this out for quality unit and everything now works fine.

Just shows how quality units worth there money

Thanks

Jim

[Allan T]

I'd highly recommend changing everything else on the car to LEDs if you've even half an inclination to - except the ignition warning light, which you can't.

[Vic Butler]

The reason you shouldn't change the ignition warning light to LED is because the bulb won't draw enough current to excite the alternator and it won't charge unless a resistor is wired across the bulb and that's pointless as it will still draw the same current as a standard bulb.