1984 Headlight motor problems.
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Burning Brakes
Joined: Aug 2002
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From: West Point Utah
1984 Headlight motor problems.
Replace old motor with a rebuilt one.Plug it in before I install it seems to work great.Now once install the headlight will open but will only close half way back.I turn the little **** and it close easy.This is right side and Idid install the left side and seems to work ok a little slow .Anyone have a problem like this? :confused: :confused: EDMGUY
[Modified by EDMGUY, 1:25 PM 12/21/2002]
[Modified by EDMGUY, 1:25 PM 12/21/2002]
Safety Car
Joined: Aug 2002
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From: SANTA CRUZ CA
Re: 1984 Headlight motor problems. (EDMGUY)
Maybe this tip from the TECH TIP forum will help: https://www.corvetteforum.com/techti...D=16&TopicID=2
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Burning Brakes
Joined: Aug 2002
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From: West Point Utah
Re: 1984 Headlight motor problems. (Oldman)
I look at the site and did and did go over everthing but it still acts like it run out of power when it closes it its not the gears it just stops. :nonod: :confused:
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Re: 1984 Headlight motor problems. (EDMGUY)
I look at the site and did and did go over everthing but it still acts like it run out of power when it closes it its not the gears it just stops. :nonod: :confused:
But I do know that there is some sort of "stop/limit" circuitry in the motor or in the power input, that senses when the motor has completed the up/down function and shuts off power to the motor. Otherwise the motor would keep trying to open or close the lights forever.
Sounds like you may have a problem where the motor is sensing a stop limit before the light is fully closed.
I would contact the "rebuilder" and explain the problem
Jack :steering: [I love that little guy]
Pro
Joined: Jul 2002
Posts: 729
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From: Yukon OK
Re: 1984 Headlight motor problems. (EDMGUY)
The way the stop limit switch works is that the headlight rubber bumper hits its stop. Then the motor tries to keep driving. Since it is a worm gear, it pushes the motor shaft away from the gear it drives. That shaft then hits the limit switch to remove power. If there is any binding in the headlight or pivots that will cause the shaft to hit the switch and shut down the motor. Make sure everything is smooth and not binding.
Another possibility is the limit switch itself. If it is not getting a good contact it can be really intermittant.
Third but least likely is the thermal switch. I think this is a safety feature. If it gets too hot it will open and remove power from the motor entirely and it will not go up or down. This can also be intermittant.
Question; When it tries to close and hangs up, can you turn on the lights and get it to open again?
Try this; with the hood open, turn the lights on then off. When it hangs half closed take the handle end of a screwdriver and tap firmly on both ends of the motor and see if it starts again. :seeya
Another possibility is the limit switch itself. If it is not getting a good contact it can be really intermittant.
Third but least likely is the thermal switch. I think this is a safety feature. If it gets too hot it will open and remove power from the motor entirely and it will not go up or down. This can also be intermittant.
Question; When it tries to close and hangs up, can you turn on the lights and get it to open again?
Try this; with the hood open, turn the lights on then off. When it hangs half closed take the handle end of a screwdriver and tap firmly on both ends of the motor and see if it starts again. :seeya
Thread Starter
Burning Brakes
Joined: Aug 2002
Posts: 779
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From: West Point Utah
Re: 1984 Headlight motor problems. (EDMGUY)
Contacted the vette shop and he said to send it back that theres a problem and they will replace it .Thanks for all your help EDMGUY :D :D :D :D
