C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

86 Headlight Motor Gears

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Old Jan 10, 2010 | 11:05 PM
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Default 86 Headlight Motor Gears

I took apart the motors on my 86 Corvette to take a look at the condition of the Gears, as my Headlights wont pop up.

The Motors work and the Gears dont look that worn, sometimes playing with the manual adjustment **** will make them work.

Does the 86 use bushings or are there just really tight tolerances for the Gears that possibly I visually cant see?

Any Ideas ??????????????
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Old Jan 11, 2010 | 02:46 AM
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The 86 uses magnets inside the headlight motors.Are any of them broken off,worn or etc?I had the same problem you did and the problem was the magnets inside were coming apart.
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Old Jan 11, 2010 | 07:22 AM
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Originally Posted by Aggravated4life
The 86 uses magnets inside the headlight motors.Are any of them broken off,worn or etc?I had the same problem you did and the problem was the magnets inside were coming apart.
Not to highjack this thread, but mine is doing the same thing. The pass side works fine but the drivers side motor runs but the headlight doesn't move............
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Old Jan 11, 2010 | 08:14 AM
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The fact that you can sometimes make them work while playing with the manual ****, leaves me to believe it's a problem with a limit switch in motor housing. You may be able to do some electrical testing to prove this, or rule it out.
http://members.shaw.ca/dankai/Headlight%20Doors.pdf
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Old Jan 11, 2010 | 07:39 PM
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I had the magnet problem. One was broken in half and loose jamming the motor from spinning. I used super glue to glue the magnet back together and then epoxied it back in place. Replaced the gears while it was apart. Two years and they work fine. Mine is an 87.
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