Aligning driving lights
Submitted: Wednesday, Jul 27, 2005 at 04:35
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Member - Blue (VIC)
OK, what's the secret??? For years I've done it the old fashioned way... Dark isolated road, adjust, turn on, turn off(so as not to blind myself), adjust, turn on...etc. 4 blokes from work recently bought new vehicles with
driving lights fitted, now I can't see Nissan paying a bloke overtime to run these vehicles out to a dark road in the middle of the night and spend hours trying to line it all up. All 4 blokes reckon the lights are aligned perfectly so how do they do it???
Mine are out of alignment(thanks to some local punk who thinks himself to be bloody hilarious) and I'm not looking forward to that evening on the dark road in the cold...
Reply By: Stew53 - Wednesday, Jul 27, 2005 at 06:38
Wednesday, Jul 27, 2005 at 06:38
Method 1.
(a.)With a straight edge or piece of timber hold it horizontally against the centre of the two
driving lights; they should be straightened until they are square in every direction. I.e. the outer rims are at equal distances from the straight edge.
(b.) using a spirit level vertically held against the centre of each light straighten the light up so that the top and bottom of the light rim are in a vertical position.
(c.) re-
check the horizontal with the straight edge or timber to ensure the lights have not turned whilst you were doing the vertical
Method 2.
(a.)With the vehicle parked straight on level ground facing a wall and about three meters back i.e. the rear of your garage, measure from the ground to the centre of the driving light. Place a horizontal line on the wall at the same height, I use black electrical tape.
(b.) Measure the distance between the two
driving lights centers and place lines on the wall at the same spacing.
(c.) turn on the
driving lights and focus them onto the centre of the crosses on the wall.
Works for me
Stew
AnswerID:
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Follow Up By: Member - Blue (VIC) - Wednesday, Jul 27, 2005 at 13:56
Wednesday, Jul 27, 2005 at 13:56
It's funny how you can rack your brain for oh lets say about 13 years and then one day someone spells it out this easily...
Thanks Stew
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Reply By: Member - John C (QLD) - Wednesday, Jul 27, 2005 at 08:11
Wednesday, Jul 27, 2005 at 08:11
I don't have level ground at the front of our carport, so as soon as I back the car out, it ain't level :-). Problem with living on the side of a
hill.
So I go down to the local shops after they have closed and use thier car park, and a wall about 10m from the car, where it is level. Same method, line the car up and make a mark with a bit of chalk for the centre of the car and height of the lights.
Usually put one light a bit high and one a little low, han't found a level bit of road yet when driving, or the car being exactly the same level with the same load on board. Also cross the light beams at about 30m out for the same reason, help with corners and looking into the bush for roos. (A pair of super oscars, both
driving lights, 130w h1 bulbs) Use rags to cover all of the lights except for the one being adjusted.
The standard headlights I adjust to get low beam where I want and let high beam fall where ever it does. Usually a bit high, but with low beam not blinding anyone.
(90/100w bulbs, standard wiring isn't up to much more)
What does every one else do?
AnswerID:
122244
Follow Up By: Exploder - Wednesday, Jul 27, 2005 at 18:24
Wednesday, Jul 27, 2005 at 18:24
Stew and
John both have it right, but I understand the correct distance from wall to car is 26feet or 7.8 meter’s
FollowupID:
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Reply By: Bonz (Vic) - Wednesday, Jul 27, 2005 at 18:29
Wednesday, Jul 27, 2005 at 18:29
Blue, I just take
mine out the road, with a couple of towels and a jumper or two, cover all the lights bar the one you're adjusting, then do the other one, works every time, perfect.
Sticks and horizontal....pshaw, often you need the light a tad higher so you dont throw all the light right in front of the car.
Oh and get a air rifle for that pesky kid
AnswerID:
122342
Follow Up By: Member - Blue (VIC) - Wednesday, Jul 27, 2005 at 19:29
Wednesday, Jul 27, 2005 at 19:29
Thanks Bonz, love to take to the brat with more than an air rifle but then he could've lifted them completely... (of course I only assume it's a "he")
I used to do it on a back road in the manner you suggest but, everytime without fail I'd blind myself at least once... Blue spots everywhere makes it hard to know exactly what you're looking at... I might start with the wall method and then go and put the final adjustments in on a back road.
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377536
Reply By: Toy_Hilux - Wednesday, Jul 27, 2005 at 21:34
Wednesday, Jul 27, 2005 at 21:34
Hi,
There was talk in an earlier post of lights, and my pet hate is vehicles with incorrectly adjusted lights. I just wish that when they (the cops) do random inspections for defects, that they would also
check these aswell.
Sorry about whinging but that is the truth.
Any-way, getting back to the subject, if you haven't already got a good workshop manual, go and get one. It actually gives a very good description on how to adjust lights properly. I don't know on other vehicles, but on my two Toyotas, the correct distance to true up the lights is 7.6mts from the front of the vehicle to the aiming wall, with centering lines both horizontally and vertically marked on the wall in correspondance with the height of the lights.
I am not going to go into detail but to inform you to get a decent workshop manual like a "
Gregory's". For those that have one on the 80series LC in the
gregory's range, the details are on page 243 under the Body Electrical heading. It gives an accurate and very easy to follow directions.
As for truing up the lights out on a dark road, forget it. No wonder there are so many people on the road that tend to get flashed even though they are on low beam just due to poorly aligned lights.
AnswerID:
122406
Follow Up By: Member - Blue (VIC) - Wednesday, Jul 27, 2005 at 22:03
Wednesday, Jul 27, 2005 at 22:03
Be nice if I could get a manual... even tried to order one from the Technical Bookstore, no joy... I refuse to pay what Mitsu are asking for the CD. Also it's only the
driving lights being trued, I'd let the dealer true the main lights under warranty.
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