Headlight motor run-on
Thread Starter
Le Mans Master
Joined: Apr 2002
Posts: 5,726
Likes: 46
From: Waukesha WI
St. Jude Donor '15
Headlight motor run-on
I tried to use the search feature but it did not return any usable info so here goes.
The pass. side headlight motor on my 90 keeps running for like 10 sec after the light reaches the stop either open or closed. Everything else seems to be fine it just doesn't want to stop.
Any ideas? Gears? Bushings?
Thanks
Dale
The pass. side headlight motor on my 90 keeps running for like 10 sec after the light reaches the stop either open or closed. Everything else seems to be fine it just doesn't want to stop.
Any ideas? Gears? Bushings?
Thanks
Dale
Team Owner
Joined: Dec 2000
Posts: 90,675
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From: SE NY
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The problem is either that the headlight isn't completing it's rotation or the limit switch in the motor is defective.
Turn the manual **** atop the assembly; if it feels "mushy" replace the bushings.
Turn the manual **** atop the assembly; if it feels "mushy" replace the bushings.
Large Impressive Member
Joined: Jul 2003
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From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Are these the bushings that can be purchased from a hardware store that I've read of here on the forum? I think one of my lights is starting to do the same thing.
Team Owner
Joined: Oct 2000
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From: Fort Knox, KY
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Yes. Although there's controversey surrounding their use, I bought my bushings from Home Depot, installed them, and my lights are working fine. Other have used them and had them fail shortly after installing them.
It's a turkey shoot. I just want you to go in eyes wide open before you commit to purchase so you or no one else here can beef I sold you a bum steer.
Or you can order the bushings from MAM, Eckler's and the other big-dog retailers for the O.E.M. Delrin bushings and pay a whole lot more.
The Home Depot item number is 595609. That's all you need to tell the clerk when you go in there. You will need six (6) of these nylon spacers in order to repair both lights.
Follow the instructions below to install.
http://www.corvetteforums.net/tech/headlight.html
It's a turkey shoot. I just want you to go in eyes wide open before you commit to purchase so you or no one else here can beef I sold you a bum steer.
Or you can order the bushings from MAM, Eckler's and the other big-dog retailers for the O.E.M. Delrin bushings and pay a whole lot more.
The Home Depot item number is 595609. That's all you need to tell the clerk when you go in there. You will need six (6) of these nylon spacers in order to repair both lights.
Follow the instructions below to install.
http://www.corvetteforums.net/tech/headlight.html
Team Owner
Joined: Oct 2000
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From: Fort Knox, KY
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Originally Posted by Dale1990
Cool. Sounds like the bushings are the problem. I'll get to it this weekend and report back as to the results.
Thanks All!
Dale
Thanks All!
Dale
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Safety Car
Joined: Jul 2003
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Just got done last night replacing both sets of bushings in my headlights. (Anyone else stay up until 2:00am working on their car for fun?)
I had the same problem and new bushings fixed it. The Home Depot bushings are rather thin and I had to replace the first set. When I opened it back up they were squished. Someone suggested bushings from Lowe's which are thicker but must be trimmed. Here's my thread with part numbers from lowes. http://forums.corvetteforum.com/showthread.php?t=922225
Good luck and watch for all the small shims inside and outside the motor!
I had the same problem and new bushings fixed it. The Home Depot bushings are rather thin and I had to replace the first set. When I opened it back up they were squished. Someone suggested bushings from Lowe's which are thicker but must be trimmed. Here's my thread with part numbers from lowes. http://forums.corvetteforum.com/showthread.php?t=922225
Good luck and watch for all the small shims inside and outside the motor!
Team Owner
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From: Fort Knox, KY
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I think Scoob's going with the Lowe's bushings, too. Scoob how are you fixed for C4 headlights these days?
Safety Car
Joined: Aug 1999
Posts: 4,249
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From: Grovetown Georgia
I just did my passenger side bushings with a set I got from ebay (solid bushings). I did the other side last year and now no spinning motor 
I was stuck for a while trying to get the motor off of the headlight assembly, until I realized that the cotter pin had broken and there was still a piece inside, once I got that out it was smooth sailing
I was stuck for a while trying to get the motor off of the headlight assembly, until I realized that the cotter pin had broken and there was still a piece inside, once I got that out it was smooth sailing
Thread Starter
Le Mans Master
Joined: Apr 2002
Posts: 5,726
Likes: 46
From: Waukesha WI
St. Jude Donor '15
WooHoo! My light works again!
It only took maybe 2hrs from opening the hood to closing it thanks to all of the help here. For the bushings I used ones from lowes since that is all that is near me. 1/2 x .194 x 1/2 is the size. I think they change P/Ns or manufacturers regularly so the size is the best way to find them.
Everything went together a little tight but I guess they will do a better job than the dust that was in there (yes, nothing but dust/chips). I only did the broken one and have the extra parts set aside for when the other dies.
WooHoo! Thanks for the help everybody!!
Dale
It only took maybe 2hrs from opening the hood to closing it thanks to all of the help here. For the bushings I used ones from lowes since that is all that is near me. 1/2 x .194 x 1/2 is the size. I think they change P/Ns or manufacturers regularly so the size is the best way to find them.
Everything went together a little tight but I guess they will do a better job than the dust that was in there (yes, nothing but dust/chips). I only did the broken one and have the extra parts set aside for when the other dies.
WooHoo! Thanks for the help everybody!!
Dale
Thread Starter
Le Mans Master
Joined: Apr 2002
Posts: 5,726
Likes: 46
From: Waukesha WI
St. Jude Donor '15
Forgot to add that the Roll Pin broke down the long axis and the spring clip snapped. I found replacements at Lowes a few drawers away from the bushings. Add another $1.45 to the bill.
Dale
Dale
