Stag: indicators no longer flash

franksm

Hi folks

The indicators on my '73 Stag no longer flash - they just come on and stay on. The system is wired (by standard) such that there is one 2-pin flasher in between the power supply and the flash switch, and then the flasher switch activates either left or right. The problem occurs both on left/right. The emergency flasher is a separate circuit and that works fine.

I've checked all the bulbs and they are fine & fairly new; the connections look good. The fuses (shared with side-lamps) are fine and connections are good there.

I have replaced the flasher unit, and the symptoms persist. In fact, I hooked the flasher unit up to a pair of 21w bulbs and connected to a 12v supply - worked fine, so it's not the flasher unit itself at fault.

Any ideas ? Has to be something in common with both left and right circuits, but all looks fine although I haven't taken the switch apart.

The only other problem with the car is that the alternator dash-light has been lighting up recently when the engine is running (and not lighting up before cranking) - I have a new alternator on the way, just haven't received it yet. If the alternator is only partially charging the battery, and the battery is therefore weak does that manifest itself in a non-flashing flasher (amongst other things) ?

Cheers

Frank

PS. car seems to run fine despite the red light, have been driving it all week like that (I know, I know). The voltmeter says it's not healthy of course. Gonna charge the battery up tonight so that I can go to Terenure - was hoping to receive the alternator today but no sign of Mr. Postman

kyote00

I had something similar (lights staying on) and it turned out to the a bad earth connection where the indicator bulbs on the dash are.

I cleaned every earth I could find and replaced the engine to body earth strap which fixed my problem

Alfasudcrazy

MY TR6 used to be at that too for a while and I found it was the flasher unit - some of them are not as good quality as they seem - even though they were new - I eventually got a 'good' flasher unit and have never had any problems since.

franksm

Finally solved my nonflashing flashers - it was the alternator not providing enough juice for the battery.

I replaced the flasher box, checked all the wiring for the bulbs and switches and everything in between; tightened up the earth-strap on the engine (it wasn't too tight), and cleaned up earths on the indicator units. Also replaced a few bulbs here and there for good measure.

During this time, the alternator-lamp had been glowing ever so slightly while the engine was running (not just during idle) so, since parts are cheap for these old cars, I put a new alternator in (£35 STG) and hey presto job done !

Thanks fir the suggestions above anyhoo