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

early c4 headlight motor

Thread Tools
 
Search this Thread
 
Old May 16, 2017 | 03:40 PM
  #1  
dms0309's Avatar
dms0309
Thread Starter
Advanced
 
Joined: Feb 2014
Posts: 50
Likes: 0
Default early c4 headlight motor

Hi,
Has anyone had a problem with finding the replacement gear for the early C4, the gear thats offered on the online stores does not fit my motor.
Could this possibly be a different motor that was replaced by the previous owner.
Thanks for your help.
Reply
Old May 16, 2017 | 04:47 PM
  #2  
s carter's Avatar
s carter
Melting Slicks
10 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2014
Posts: 2,894
Likes: 592
From: New Port Richey FL
Default

Originally Posted by dms0309
Hi,
Has anyone had a problem with finding the replacement gear for the early C4, the gear thats offered on the online stores does not fit my motor.
Could this possibly be a different motor that was replaced by the previous owner.
Thanks for your help.
Do you have a Pre88 with the "T" shaft here is a listing that I will help Solve your problem
https://corvetteparts.com/catalog?q=headlight+motor
Reply
Old May 16, 2017 | 06:57 PM
  #3  
WVZR-1's Avatar
WVZR-1
Team Owner
20 Year Member
Veteran: Army
Active Streak: 30 Days
Liked
 
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
Default

Originally Posted by dms0309
Hi,
Has anyone had a problem with finding the replacement gear for the early C4, the gear thats offered on the online stores does not fit my motor.
Could this possibly be a different motor that was replaced by the previous owner.
Thanks for your help.
Mention the Vendor and the part# of what you've purchased. What year is the car? EARLY doesn't necessarily work -

Post a snapshot of your actual motor

Is there any information on the motor that you have now?

Here's an early '84 - '87 RH that you can ZOOM etc to ID from appearance if it's like yours.

http://www.ebay.com/itm/1984-1987-Co...5XhTBb&vxp=mtr

At some point GM quit servicing the early motors and offered a package that would have been a pair of later motors, the control and required wiring. It's not as unusual as some would expect to find this newer "conversion"!!

If early motors I believe you'd find 16500363 on LH AND 16500364 ON RH.
Reply
Old May 16, 2017 | 10:04 PM
  #4  
dms0309's Avatar
dms0309
Thread Starter
Advanced
 
Joined: Feb 2014
Posts: 50
Likes: 0
Default C4 headlight motor

Originally Posted by WVZR-1
Mention the Vendor and the part# of what you've purchased. What year is the car? EARLY doesn't necessarily work -

Post a snapshot of your actual motor

Is there any information on the motor that you have now?

Here's an early '84 - '87 RH that you can ZOOM etc to ID from appearance if it's like yours.

http://www.ebay.com/itm/1984-1987-Co...5XhTBb&vxp=mtr

At some point GM quit servicing the early motors and offered a package that would have been a pair of later motors, the control and required wiring. It's not as unusual as some would expect to find this newer "conversion"!!

If early motors I believe you'd find 16500363 on LH AND 16500364 ON RH.
Thanks WVZR-1. It's an 85 and I purchased the gear set from Midwest Corvette thru Amazon, I don't have the car with me right now it's getting the seats recovered and the parts are in the car.
As soon as I get it back I'll give you more info, should be a couple of days. The motor didn't look like the ones that are shown in an older thread on this forum on how to replace the gear.
Reply
Old May 17, 2017 | 01:30 AM
  #5  
Hot Rod Roy's Avatar
Hot Rod Roy
Safety Car
15 Year Member
 
Joined: Sep 2004
Posts: 3,953
Likes: 550
From: Mission Viejo CA
Default

It's easy to identify the "early" ('84-'87) from the "late" ('88-'96) headlight motors. The "early" have the manual actuation ***** on the bottom of the motors, while the "late" have the manual actuation ***** on the top of the motors.

Reply
Old May 17, 2017 | 03:23 PM
  #6  
dms0309's Avatar
dms0309
Thread Starter
Advanced
 
Joined: Feb 2014
Posts: 50
Likes: 0
Default C4 headlight motor info

I managed to get the number off the motor it is 16510063LH
I looked at the motor from the link you sent and it is not that motor, I think mine looks like it has a single gear. Any info or help you can give me would be appreciated. I would like to repair that motor.
Reply
Old May 17, 2017 | 04:53 PM
  #7  
WVZR-1's Avatar
WVZR-1
Team Owner
20 Year Member
Veteran: Army
Active Streak: 30 Days
Liked
 
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
Default

Originally Posted by dms0309
I managed to get the number off the motor it is 16510063LH
I looked at the motor from the link you sent and it is not that motor, I think mine looks like it has a single gear. Any info or help you can give me would be appreciated. I would like to repair that motor.
The number that you mention I'd expect on an '88+ motor. Yours has apparently had the later package adapted in some fashion. Your motor should have a black ****, "on top" and easily accessible.

Take a look at this one

http://www.ebay.com/itm/Chevrolet-Co...ZWuhYz&vxp=mtr

It would be very important that the RH matches the left on your car.

Last edited by WVZR-1; May 17, 2017 at 04:54 PM.
Reply
Old May 17, 2017 | 06:01 PM
  #8  
dms0309's Avatar
dms0309
Thread Starter
Advanced
 
Joined: Feb 2014
Posts: 50
Likes: 0
Default C4 headlight motor info

Originally Posted by WVZR-1
The number that you mention I'd expect on an '88+ motor. Yours has apparently had the later package adapted in some fashion. Your motor should have a black ****, "on top" and easily accessible.

Take a look at this one

http://www.ebay.com/itm/Chevrolet-Co...ZWuhYz&vxp=mtr

It would be very important that the RH matches the left on your car.
Yes, thats the motor that I have. Can anything be done with it? aside from replacing the motor.
it stutters when I open and close it.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old May 17, 2017 | 08:00 PM
  #9  
WVZR-1's Avatar
WVZR-1
Team Owner
20 Year Member
Veteran: Army
Active Streak: 30 Days
Liked
 
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
Default

Originally Posted by dms0309
Yes, thats the motor that I have. Can anything be done with it? aside from replacing the motor.
it stutters when I open and close it.
It appears that the Vendor you bought from offers only a package for the "newer" that generally is thought to be "overkill". You didn't mention the specific product you bought so maybe the best thing for you to do is "resell" what you bought for the earlier motors and buy the typical parts used for the later/newer motors.

Maybe contact Midwest Corvette @ Amazon and work with them for what's needed.

You should NOT need motors! I'll let you do your own research for '88+ headlamp motor repair. There's hundreds of threads and likely a few hundred videos as well.
Reply
Old Sep 19, 2017 | 01:20 PM
  #10  
86project's Avatar
86project
Advanced
 
Joined: Feb 2017
Posts: 86
Likes: 4
From: San Antonio, Fl Florida
Default Headlight gears

Originally Posted by WVZR-1
Mention the Vendor and the part# of what you've purchased. What year is the car? EARLY doesn't necessarily work -

Post a snapshot of your actual motor

Is there any information on the motor that you have now?

Here's an early '84 - '87 RH that you can ZOOM etc to ID from appearance if it's like yours.

http://www.ebay.com/itm/1984-1987-Co...5XhTBb&vxp=mtr

At some point GM quit servicing the early motors and offered a package that would have been a pair of later motors, the control and required wiring. It's not as unusual as some would expect to find this newer "conversion"!!

If early motors I believe you'd find 16500363 on LH AND 16500364 ON RH.
Hello WVZR-1, was wondering if you have made the gear change in your vette, my right lite is lazy it goes up half way & down half way, I can push it all the way up & all the way down, it acts to me like the gears are stripped & not a bad motor, do u know if its common just to replace the gears & not the whole motor? Any response would be appreciated. Thanks, Mark 86 project. FYI the drivers side works fine.
Reply
Old Sep 19, 2017 | 03:15 PM
  #11  
Hot Rod Roy's Avatar
Hot Rod Roy
Safety Car
15 Year Member
 
Joined: Sep 2004
Posts: 3,953
Likes: 550
From: Mission Viejo CA
Default

Originally Posted by 86project
Hello WVZR-1, was wondering if you have made the gear change in your vette, my right lite is lazy it goes up half way & down half way, I can push it all the way up & all the way down, it acts to me like the gears are stripped & not a bad motor, do u know if its common just to replace the gears & not the whole motor?
Mark, if you've read this whole thread, you should know there's two styles of headlight motors in the C4's. WVZR-1 is good, but he isn't psychic! Are the manual actuation ***** of your headlight motors on the bottom (as should be expected on an '86) or are they on the top? Previous posts here explain the difference! If you don't have "bottom ****" motors, the problem may be different!

If you do have the "bottom ****" motors, I'd say you probably have stripped gears which can be replaced, without replacing the whole motor. Here's a photo of the "bottom ****" motors in my '84:

Reply
Old Sep 19, 2017 | 06:00 PM
  #12  
86project's Avatar
86project
Advanced
 
Joined: Feb 2017
Posts: 86
Likes: 4
From: San Antonio, Fl Florida
Default

Originally Posted by Hot Rod Roy
Mark, if you've read this whole thread, you should know there's two styles of headlight motors in the C4's. WVZR-1 is good, but he isn't psychic! Are the manual actuation ***** of your headlight motors on the bottom (as should be expected on an '86) or are they on the top? Previous posts here explain the difference! If you don't have "bottom ****" motors, the problem may be different!

If you do have the "bottom ****" motors, I'd say you probably have stripped gears which can be replaced, without replacing the whole motor. Here's a photo of the "bottom ****" motors in my '84:

Thanks for your reply and the photo Roy, yes I do have the bottom ****, will more than likely order those gears. From the research I have done the bottom **** is on vette's, years 84 thru 87, WVZR-1 would know that so why would I have to think he was physic?
Reply
Old Sep 19, 2017 | 07:14 PM
  #13  
Hot Rod Roy's Avatar
Hot Rod Roy
Safety Car
15 Year Member
 
Joined: Sep 2004
Posts: 3,953
Likes: 550
From: Mission Viejo CA
Default

Originally Posted by 86project
WVZR-1 would know that so why would I have to think he was physic?
Originally Posted by 86project
Hello WVZR-1, was wondering if you have made the gear change in your vette,
Did you read the entire story in that old thread that you added your problem to? How would he know whether you still have the original headlight motors in your car, since you were adding to the confusing story of those who posted before you, and there was confusion about the early (bottom ****) vs. the late (top ****) differences? Why do you care whether WVZR-1 has changed his gears?

You would have been better to start a new post, or better yet, there's already a ton of info on this subject in this forum. An "Advanced Search" in the C4 section might be informative. There's also posts with pictures on how to change the gears in the early C4 headlight motors. Search for Cliff Harris posts. At this time, there's also current posts on cleaning and lubricating the motors in your '86.

Reply

Get notified of new replies

To early c4 headlight motor





All times are GMT -4. The time now is 09:13 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE