How difficult and expensive to fix this headlight?
 

Please go to this link to see the pic.

http://home.comcast.net/~deanderose/...ome.html-.html

Thanks

RE: How difficult and expensive to fix this headlight?
 

I assume you are referring to the missaligned headlight?

If so, there should be some adjustment screws that set the stop...

RE: How difficult and expensive to fix this headlight?
 

If your talking about the headlight assembly being flush with hood when closed, I have the same problem. If you find solution I'd like to know also. I don't see any adjustments for this.Good luck

RE: How difficult and expensive to fix this headlight?
 

Have you checked to see if the gear in the headlight motor is broke. There are metal replacement gears for the headlight motors and there is also adjustment for the stops. I doubt that this is the problem though, because doors don't just get out of adjustment unless something has happened (like something, gear, has broke).

RE: How difficult and expensive to fix this headlight?
 

Thanks,
But I dont think its a gear problem because the light assembly rotates fully through its cycle.
I'm thinking its the nylon bushing in the arm that comes off the motor. How hard is this to get out and replace, do you know? The other problem I'm having with the headlights is that when ever I turn them on or off the motor continues to run even after the assembly has come to its stops. Any ideas????? I really appreciate the helpful people on this forum.

RE: How difficult and expensive to fix this headlight?
 

You have to unbolt the assembly from the hood first, then you can perform whatever functions you need to do. I would highly recommend changeing the plastic gear to the metal one, because that is a known weakness of that assembly. I have the assemblies out of mine at the moment as I am doing a restore on it. I will check them tonight when I get home and post for you then. Parts are kinda difficult to find on C4's because GM has discontinued lots of them and not many repro's out there. Eckler's has a good selection, but they are high.

RE: How difficult and expensive to fix this headlight?
 

Any ideas about the motor running after light assembly stops moving?? Is there an ajustment for this?

RE: How difficult and expensive to fix this headlight?
 

Motor running may have something to do with the stop adjustment or gear in motor. I don't think there is a limit switch, at least the wiring diagram has none, so it must be mechanical. Again, I will check and post tonight. Also, does both motors run or just the out of align one?

RE: How difficult and expensive to fix this headlight?
 

Car is in the shop at the moment so I have to check later. Not sure when I will have it back. Hopfully soon. I think it was only the motor on the side that doesnt line up right. But I'm not sure. I let you know when I get it back. Thanks for the help.

RE: How difficult and expensive to fix this headlight?
 

There is no limit switch, just a stop adjustment screw with a rubber pad on it. If the motor runs fine, you might try to adjust the screw.

RE: How difficult and expensive to fix this headlight?
 

Typically the nylon bushings inside the rotator mechanism have disintegrated. The material used deteriorates over time and use. There are a couple of ways to fix the problem. If you're mechanically inclined, have basic hand tools and are patient, it can be fixed. I had to fix my ZR-1's headlights a few years ago. Ecklers sells a bushing kit. I'll see if I can find the part #. I used steel balls in mine. I don't recall the diameter though, as these were given to me by a friend.

Here is a great technical article on how to fix this correctly. This is the same article I referred to when I did mine.

http://www.corvettefever.com/howto/33098/

Here is what mine looked like, where the steel balls go:



[IMG]local://upfiles/1464/0727FB73EFB443B2BD70EE09F011A433.jpg[/IMG]

RE: How difficult and expensive to fix this headlight?
 

Here's the replacement bushings that I recommend. I used steel ball bearings, but if I had to do it again now, I'd use these Delrin bushings.

http://www.ecklers.com/product.asp?p...dept%5Fid=1476

Follow the instructions here to do the repair.

http://www.corvettefever.com/howto/33098/



[IMG]local://upfiles/1464/A6E7D131A3674B48A9297E04C26F4387.jpg[/IMG]

RE: How difficult and expensive to fix this headlight?
 

Thanks for info Chris.
I'm still waiting for my 92 to come back from the shop. I had to have the brain,control module,and speed sensor replaced plus some shorting problems. Not excited about getting the bill!!!!!
I'll let you know what I find when I get it back.

RE: How difficult and expensive to fix this headlight?
 

I just purchased a 85 C-4 with relatively low miles, but unfortunately it has many electrical problems. Is this a common situation? I was told that the headlight motor system had been upgraded to a later style, but it doesn't work either. The instrument cluster intermittently darkens, usually after the car has run for awhile. The readings are still operating only you can't see them at night. unless you use a flashlight. Makes for interesting driving.

RE: How difficult and expensive to fix this headlight?
 

Unfortunately, probably the only fix for your cluster is to send it in and get it rebuilt as the LED control system within the cluster has problems. Had to have mine rebuilt to the tune of around $500.00 as it had the same problems, cept mine was dim all the time. There is a place in Houston, Texas that rebuilds them for GM. Check with your local GM dealer, they might have a source that rebuilds them.

RE: How difficult and expensive to fix this headlight?
 

There is a limit switch built in to the motor assembly, it is internal to the headligh motor and does not have any adjustment, it is used to break the electrical connection to the motor once the headlight door has hit its stop.