anyone know how to aim the headlights for an 1991 LS400???

i cant seem to find any kinda of screws that can adjust the aim of the headlights

someone please help!

 

on 1st gen there are couple of screws on top of each headlight.

 

i tryed it before, the long screw dosent really do anything, it moves only a little bit and stops

something i'm doing wrong here?

 

The long screw is up and down movement. That is the worst design Lexus could have come up with. The whole mechanism is plastic so if you force it too much, the whole thing will brake and lock up. I suggest taking appart the headlight and setting it manually. Once you install it all back use the long screw to fine tune it. You will also know how much adjustability you have once you look inside the headlight assembly.