How to change the headlight motor gear in a C4 Corvette
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Date: 2021-02-01
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Comments and reviews: 10
Dan
I did one light today. Not as quick as you. Some swearing. I will say that whoever designed and built this assembly for GM was not a real good engineer. So many bolts to remove to get at 3 bushings. And hidden bolts behind brackets at that. It was a bit different on an '88 C4 to take the assembly out of the car. My bushings were ground to dust also. I will say to anyone else out there, ditch the pin and replace with a cotter pin. I got the pin out with a nail set punch. I will say I did break a drill bit first and had to then drive that back out. Also did anybody encounter the passenger side motor being different from the driver's side?
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I did one light today. Not as quick as you. Some swearing. I will say that whoever designed and built this assembly for GM was not a real good engineer. So many bolts to remove to get at 3 bushings. And hidden bolts behind brackets at that. It was a bit different on an '88 C4 to take the assembly out of the car. My bushings were ground to dust also. I will say to anyone else out there, ditch the pin and replace with a cotter pin. I got the pin out with a nail set punch. I will say I did break a drill bit first and had to then drive that back out. Also did anybody encounter the passenger side motor being different from the driver's side?
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Peter
For the passenger side on my '91 I had to remove the motor. Tip for getting the armature back in: pull back the brushes and use thread to hold them in place.
I used a ziptie through the hole where the tension pin goes, tied the thread through it, and pulled on the ziptie to create. well, tension. On the other side I did the same with the thread and held it while dropping in the armature.
Dunno if there was a better way to change the gear, but that should be helpful to anyone replacing the brushes!
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For the passenger side on my '91 I had to remove the motor. Tip for getting the armature back in: pull back the brushes and use thread to hold them in place.
I used a ziptie through the hole where the tension pin goes, tied the thread through it, and pulled on the ziptie to create. well, tension. On the other side I did the same with the thread and held it while dropping in the armature.
Dunno if there was a better way to change the gear, but that should be helpful to anyone replacing the brushes!
reply
Todd
I know this is several years old now, but I smiled the whole way though watching a young guy fix this with the tools he had. Loved the carpenters hammer, towel on the ground and just doing it. Well done Sir. Loved the vid
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I know this is several years old now, but I smiled the whole way though watching a young guy fix this with the tools he had. Loved the carpenters hammer, towel on the ground and just doing it. Well done Sir. Loved the vid
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Steve
Just finished my 1996 Black C4 both sides. Your video encouraged me to do it myself. Thank you. Seems the gear was okay tho. It was the bushings that disintegrated. With Id bought the plastic gear as original.
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Just finished my 1996 Black C4 both sides. Your video encouraged me to do it myself. Thank you. Seems the gear was okay tho. It was the bushings that disintegrated. With Id bought the plastic gear as original.
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Todd
Great video. Just wanted to clarify that my 1986 was different in many ways. But you showing that the gear was changeable was all I needed. You saved me some bucks by posting that video. Thanks!
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Great video. Just wanted to clarify that my 1986 was different in many ways. But you showing that the gear was changeable was all I needed. You saved me some bucks by posting that video. Thanks!
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Kraut-Performance
Do you understand that the problem wasn't the gear?
You see the yunk inside the gear, but there aren't any bushings.
I'm pretty sure you only have to replace the bushings.
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Do you understand that the problem wasn't the gear?
You see the yunk inside the gear, but there aren't any bushings.
I'm pretty sure you only have to replace the bushings.
reply
Steve
Steve Michelson
You are a GREAT teacher. Even I, who is totally non-mechanical, can fix my headlight and save tons of money. Thank you so much! Your video is so clear as well!
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Steve Michelson
You are a GREAT teacher. Even I, who is totally non-mechanical, can fix my headlight and save tons of money. Thank you so much! Your video is so clear as well!
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Inebrious
Man. I had to do this job back in the late 90's. Luckily I found a nice tutorial online (this was before YouTube.
Great job on this video. It'll help a lot of people.
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Man. I had to do this job back in the late 90's. Luckily I found a nice tutorial online (this was before YouTube.
Great job on this video. It'll help a lot of people.
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Doc
Hey Chris, couldn't you just take the 3 screws holding the motor cover on and knock the pin out to replace the gear?
I have to repair mine I will let you know how it goes.
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Hey Chris, couldn't you just take the 3 screws holding the motor cover on and knock the pin out to replace the gear?
I have to repair mine I will let you know how it goes.
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Sylvain
Hi Chris, just changed both headlight gear on my 1993. following your directions. all good. works perfectly. and no need for soopy wooder. thank you. great job!
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Hi Chris, just changed both headlight gear on my 1993. following your directions. all good. works perfectly. and no need for soopy wooder. thank you. great job!
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