Operation of square eights.

highwayman149

highwayman149

New Member
Hi guys. Finally got my square eights working today almost the last in a long list of jobs. Don't understand their operation though. They only come on with the light switch in the fog lamp position, okay, but only the sidelights come on with them, with the switches in all the other positions. Is that how it's supposed to be. I would've thought that they probably would've come on with the full beam position. Confused.
 
They come on instead of full beam because full beam reflects off of fog then you can't see f all
 
Hi, If you want them as fog lights then they are connected to the right wire at the front. If you want them with main beam then connect them to the main beam connection which is the blue/white wire, but this puts more load through the fuses which are borderline at best. So use the blue/white wire to operate a relay and connect the lights to relay contacts.

Colin
 
I see the logic now. I was thinking of them more as spots. Demonstrates once again how forward thinking and safety minded Rover were before it became fashionable. I don't really think they're needed in the full beam situation as the four headlamps provide excellent light ( even though mine are all sealed beam ). I prefer the look. I'd quite like them on with dipped headlights as part of my pothole avoidance system but if I try to do that I'll get people flashing me I suppose like when I've used the extra lights on my modern car. I'm unsure about the current rules for spot lamps. Never seem to see them except on trucks. There was a time when they were more mainstream as my attached image illustrates. In fact looking at the ad my lens pattern is actually the same as the spots in the ad. Lucas Square Eights Ad 1969.JPG
 
the idea with Fog lights is that they shine under the fog, which always seems to sit a bit above the ground, so you are looking at a reflection off the road instead of off the fog. the colour is also supposed to help by not reflecting off the fog but I think it may be more a case of being yellow to get around MOT regulations with lights
 
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