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View Full Version : Anyone have problems with parabolics?



seano
12-11-2009, 07:57 PM
Every night i finish work at 11pm and drive about 100klm home on the freeway and i get high beamed at least a few times every night from truckies after i overtake them.

I am pretty sure i am not doing anything else silly or stupid that would upset em. Not speeding or anything. Just plodding along with cruise on.

The only thing i can think of is that they may think i have my high beams on. To me the lights seem pretty bright and look to reach a fair distance in front, even on low beam.

Anyone else have this problem? I'm thinking of changing to those white / blue ricer bulbs just to tone it down a bit if that's what is causing the fuss.

Cheers,
sean

doddski
12-11-2009, 08:03 PM
it could be that your lights are out of alignment and people think you are on highbeam when really you arnt.

there are some screw type fittings on the top of each light housing, that you can use to adjust - check your owners handbook or the workshop manuals avail on AMC on how to correctly adjust them.

I would think, that going the lights with the blue tinge to them, will cause more upset from drivers - esp if your lights are currently out of alignment...

have a friend drive another car at night - have them lead and you follow for a lil while, stop and then ask them what your lights look like in thier mirrors, might give you another indication on thier alignment.

SupremeMoFo
12-11-2009, 09:03 PM
What does the beam look like when you're following another car? Mine have an almost HID-like cutoff usually midway up a sedan's rear bumper.

robssei
13-11-2009, 03:18 AM
Ditto for mine on low beam. Do you carry a load in the boot that makes the car sit low in the back?

Potentfoz
13-11-2009, 04:33 AM
By trucks you mean Semi's etc? if so and your getting there mirrors with your headlights your alignment is seriously out, or you have your highbeams on.

Or the truckies are just being clowns (has been known to happen)

Also in addition to alignment, double check the bulbs are sitting in the holder correctly and the latch is secure, the bulb may have moved free and thats whats causing it to point upward etc.

Potentfoz
13-11-2009, 05:00 AM
Also a huge pain for other drivers at night are people whout aftermarket HID kits in their cars. These are usually the worse because acar that is not designed to have HID's can not direct the beam corectly and the light from an HID light is more intense therefor blinding you more.
I think its actually illegal to fit aftermarket HID's to any car any way. For memory a car with HID's in it MUST have self leveling headlights by law so that we don't get the problem of blinding people.

Dont get me started on HID kits :mad:

heres a good how method Google brought to me

http://www.coolbulbs.com/HID-VISUAL-HEADLIGHT-AIMING-PROCEDURE.pdf

And yes i know it says HID, but its a good procedure and works fine for standard halogen.

FamilyWagon
13-11-2009, 05:03 AM
Also in addition to alignment, double check the bulbs are sitting in the holder correctly and the latch is secure, the bulb may have moved free and thats whats causing it to point upward etc.

This is more common than you think and very easy to do.

Sometimes it is hard to get the bulbs to sit properly and it is hard to see if they are sitting in well.

Just try and look through the front and see if the bulb is sitting straight ahead and not on an angle and have a look to see if it looks like it is sitting flush up against the light.

Also put your car up against a wall with the lights on. You will be able to see the beam level. You wil probably just have 1 beam out of alignment. Strange to have both.

If it is hugely out then most likely bulb not sitting in right. If it is just sitting slighly higher than the other then will just need an alignment via screws.

I also drive at night and i recon atleast 80% of taxi's in Melbourne have bulbs that are not in right and blind you on low beam.

Also a huge pain for other drivers at night are people with aftermarket HID kits in their cars. These are usually the worse because acar that is not designed to have HID's can not direct the beam corectly and the light from an HID light is more intense therefor blinding you more.
For memory it is illegal to fit HID's to any car that was not built with them. For memory a car with HID's in it MUST have self leveling headlights by law so that we don't get the problem of blinding people.

Dave
13-11-2009, 05:40 AM
It may also be truckies courtesy, in the UK the truck drivers often flash to let the overtaking vehicle know it is safe to merge in front. Mostly it is with trucks but I have seen them do it for cars too.

The parabolic bulb holders are notoriously fiddly, as has been previously mentioned it may well be that the bulb is not sitting correctly. The little tab on the bulb holder itself should be pointing directly upwards when you push the holder clip over the base of the bulb holder.

seano
13-11-2009, 06:05 AM
Ditto for mine on low beam. Do you carry a load in the boot that makes the car sit low in the back?

Well i just got the car converted to LPG? And there is a 10" in the boot too.


Regarding the comments about the lights being out of alignment. I posted the original thread just before i left for home last night and on the way home i was behind a white station wagon and could clearly see the cut off that SupremeMoFo was talking about so i don't think they are out of alignment or loose or anything.

Yeah and when i'm talking about trucks im talking about semi's and what not... the big suckers!

I do notice that tucks do tend to do the courtesy high beam thing when you are alright to merge back into the left lane but this seems to be more towards other truckies and when i get high beamed its sometimes after i merge back in to the left lane.


I dunno. It's probably me just being pedantic about my driving.

andrewts
13-11-2009, 07:52 AM
A lot of the time trucks will flash their high beams when you overtake them to tell you it is safe to pull back in...

seano
13-11-2009, 08:08 AM
A lot of the time trucks will flash their high beams when you overtake them to tell you it is safe to pull back in...



I do notice that tucks do tend to do the courtesy high beam thing when you are alright to merge back into the left lane but this seems to be more towards other truckies and when i get high beamed its sometimes after i merge back in to the left lane.

nope... not that

Thought i might add as well that a week or so ago, on a local road, a guy pulled in front of me out of a T intersection, i was behind him. When the road finally opened into two lanes i overtook him and he high beamed me about 5 times so i braked an wound down the window. When he pulled up i gave him the finger and he yelled back at me "Turn down your lights you *********** ****!!"


Maybe ill come to one of these meets soon and someone can look at the lights and tell me if they reckon anything is wrong?

robssei
13-11-2009, 09:20 AM
ha ha thats funny!! yeah just do the check on a wall, i used the wall at a parking garage. i asked about the load in the back as if it is large enough to sit the back of the car down it will make the light shine higher, says in the owners manual to adjust for large load if it is frequent.

seano
13-11-2009, 10:27 AM
ha ha thats funny!! yeah just do the check on a wall, i used the wall at a parking garage. i asked about the load in the back as if it is large enough to sit the back of the car down it will make the light shine higher, says in the owners manual to adjust for large load if it is frequent.

Yeah if i can find somewhere i might have a look and see what it turns out like on a wall. Well the tank does weigh the car down a little bit at the back i think but not really enough to cause any massive difference in the height of the "light beam"

Thanks for the suggestions chaps... this place is pretty helpful!

Cheers,
Sean

Potentfoz
13-11-2009, 12:04 PM
You may be merging too early and cutting short the truckies braking space, at least 7 carlengths is a good start before you merge back in (at 100kph)

But yeah check your alignment.