I am replacing my current sealed beam headlights but I don't
have a nice flat surface with a wall at one end.
The high beam of one lamp is burned out. So I am thinking of
the following.
Place a panel about 5' to 6' in front of the car (far enough
out?)
Mark the position of the focal point of the good light.
Measure the distance between the lamps and mark the panel
that distance across from the focal point.
Remove the old lamps.
Install the new lamps and align to the two focus points.
Comments please.
TIA
RF
Roland Franzius - 23 Feb 2008 09:41 GMT
RF schrieb:
> I am replacing my current sealed beam headlights but I don't have a nice
> flat surface with a wall at one end.
[quoted text clipped - 7 lines]
> Remove the old lamps.
> Install the new lamps and align to the two focus points.
The low beam dark/light edge should reach the floor at about 30m. This
makes a gradient of 60cm /30m assumig your lamp sits at hight 0.5 m.
Take a white stick and mark the edge directly at the lamp. Adjust the
lamps so that the egde is 2 cm lower at 1m. I used to do it with a peg
in the pants.
Its a bit more difficult to get the beam centers both parallel to the car.
Test the results slowly approaching a white car in front of you at a
traffic light.

Signature
Roland Franzius
Tiger - 23 Feb 2008 15:26 GMT
I do it my garage... 5' exact from wall. Measure the center of your
headlight from the ground... and measure it on the wall of same measurement.
Then measure about 0.4" down from that center line and draw a straight line.
I do this on a letter size paper so I just stick it on the wall.
That 0.4" line is the highest your low beam light should hit.
I would also do a vertical line too on that paper. Your center of headlight
should also align vertically straight ahead. You eyeball this part in
relation to the position of the car.
trader4@optonline.net - 23 Feb 2008 16:13 GMT
> I do it my garage... 5' exact from wall. Measure the center of your
> headlight from the ground... and measure it on the wall of same measurement.
[quoted text clipped - 6 lines]
> should also align vertically straight ahead. You eyeball this part in
> relation to the position of the car.
If you google you can find websites with details on how exactly to do
it. From a practical standpoint, it's probably easier to just pay a
shop to do it. With the right eqpt it's easy, accurate and takes 30
mins.
Tiger - 23 Feb 2008 16:30 GMT
Very few shop if any has that equipment. If you can see them working on your
car... you might catching them doing the crude way.
RF - 23 Feb 2008 19:48 GMT
> Very few shop if any has that equipment. If you can see them working on your
> car... you might catching them doing the crude way.
Thank you Roland and Tiger.
Just what I wanted.
Have a great weekend :-)
RF
trader4@optonline.net - 23 Feb 2008 21:59 GMT
> Very few shop if any has that equipment. If you can see them working on your
> car... you might catching them doing the crude way.
Don't know where your experience is based on, but here in NJ, I've
seen shops routinely using alignment equipment.