headlights dipped and main

[rpgrainger]

Hi<br>
my headlights are ok on dipped and when i flash them all 4 come on.....but if i push the stalk forward the offside both lights stay on and the nearside only the main beam is on...which is correct and what could be the problem....<br>
Cheers<br>
Rob<br>
also just a quick one what size wheel nuts does my 1850 have, its a bit of an oddball as its on a 78 plate but has all black badges...need to know so i can get some wheel nuts to fit me sprint wheels

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[alun n]

All 1850s had 3/8" nuts.<br>
<br>
All four should be on. Try another sealed beam unit first, could be half the double filament has gone

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[Jon Tilson]

a failed main beam filament in your n/s headlight I suspect.<br>
Flash puts them all on...<br>
but main beam uses the main beam filament only..<br>
Jonners

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