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DIY How To AIM Projector Headlights

Posted by Koneko Kumamoto On October - 4 - 2009

All projector headlights are aimed using aiming screws.  When you turn the screw, it changes direction of the bulb (or projector housing) so you can aim the headlights.  There should be 2 screws per projector (2 for high beam, 2 for low beam, on the back of each headlight housing).  One screw changes horizontal aim, one vertical aim, for each projector.  They should be somewhere near the vicinity of where the bulb is installed. Look around, you should find it.  Many aftermarket projector headlights come with no instructions, so do not freak out when you didn’t receive any.   Manufacturers really want the consumer to get the products professionally installed so if anything is installed incorrectly the installer would be at fault.  But not all installers even know how to aim or adjust headlight beams so if you’re not going to do this yourself make sure you go to the right place.

STEPS ON HOW TO AIM YOUR PROJECTOR HEADLIGHTS

1. Align your vehicle dead center in your driveway.  The front and back of your vehicle has to be perfectly aligned in the center.

2. Pull your vehicle up to the garage door, as close as you can get to the door.  Remember keeping it dead center in the middle of the garage door.

3. Put a piece of tape where the headlight beams hit the garage door. This should only be smal dot of light.

4. Pull you vehicle back 25”. Your projector lens should be 25” away from the garage door, not your tires or your bumper.

DASH Z RACING AIM PROJECTOR HEADLIGHTS DIY How To AIM Projector Headlights

5. With tape place a VERTICAL line that intersects each piece of tape that you put on the garage where your headlight beams hit. Use a yardstick or a straight edge t make it perpendicular to the driveway. This is important for aiming your lights right to left, this is just as important as up and down because if your lights are aimed to far left you will still be shining oncoming traffic in the eyes and if they are aimed too far right your not getting the most out of your light.

6. With tape place a horizontal line along the garage that intersects each piece of tape that you put on the garage where your headlight beams hit. They should oth be the same height off the driveway.

7. With tape place a horizontal line along the garage that is 2.1″ lower than the tape you placed on the garage in instruction #6. This line should be parallel with the line in #6…just 2.1″ lower.

8. Cover up the passenger side headlight with a thick towel.

9. Turn on your lights

10. Drivers Side UP/Down: Bring the lower step of the cutoff to or below the tape line that is 2.1″ lower than your headlights…Dot Spec is 2.1″ to 2.5″ drop over 25”

11. Drivers Side Right / Left: The Vertical line on the drivers side of the garage should intersect the middle of the slant on the cutoff. Move the beam pattern until this is the case.

Moving the projectors from right to left may effect the height of the beam pattern. If this is the case..just go back and fine tune.

12. Cover the Drivers side headlight with a thick towel.

13. Repeat the UP/Down Left/Right procedure that you did on the drivers side with the passenger side. The vertical line on the passenger side of the garage is to be used for instersecting the slant in the cutoff on the passenger side headlight beam.

DASH Z RACING AIM PROJECTOR HEADLIGHTS LINE DIY How To AIM Projector Headlights

This picture gives you an idea of how the screw looks like.

DASH Z RACING AIM PROJECTOR HEADLIGHTS SCREW DIY How To AIM Projector Headlights

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