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

Headlights wont lock

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Old Apr 26, 2006 | 12:48 AM
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Default Headlights wont lock

I replaced the gears in the driver side motor of my headlight about 2 months ago. Since then the nut holding the headlight and motor together has fallen off twice causing them to not work again. Its getting quite annoying and it doesnt help that I lost the original nut. So does anyone know what the size of the original nut is and where I can find it? Anything special about it? Certain torque it needs to be at?
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Old Apr 26, 2006 | 12:52 AM
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use red thread lock.
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Old Apr 26, 2006 | 01:06 AM
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If you look at the instructions on Mid-America's website for the installation of the gears...

http://content.madirect.com/pdf/601707.pdf

You'll see where it says in Step #3 to "remove the nut that secures the motor shaft to the pivot unit". I'm missing that nut.

Last edited by Demonic85; Apr 26, 2006 at 02:09 AM.
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Old Apr 26, 2006 | 10:36 AM
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Call a Corvette salvage yard. They can sell you a burned-out headlight motor assembly you can use to scavenge parts from.
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Old Apr 26, 2006 | 11:27 AM
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I'm pretty sure I can buy it at a hardware store if I knew what size it was.
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Old Apr 26, 2006 | 03:21 PM
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I nobody comes up with the answer I'd suggest taking the one off the other side to determine size, then buy a locking nut (nylon insert) for less than a dollar at any hardware / home supply store. Good luck.
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Old Apr 26, 2006 | 11:42 PM
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Thanks swifty, I really dont want to pull the other one, but looks like I may have no other choice at this point. And i'm definitely getting some thread lock.
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Old Apr 27, 2006 | 12:07 AM
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Try an M8 x 1.25 nut. It's what's listed in my Parts and Illustration Manual. I noticed when the stock nuts go on, they self lock. I probably have some in my stash.

Art

Last edited by MrRenoman; Apr 27, 2006 at 12:11 AM.
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