C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

1971 manual window crank

Thread Tools
 
Search this Thread
 
Old Apr 23, 2012 | 12:09 PM
  #1  
HunterPayne's Avatar
HunterPayne
Thread Starter
Advanced
10 Year Member
 
Joined: Sep 2005
Posts: 83
Likes: 0
From: Woodbridge VA
Default 1971 manual window crank

I am trying to determine the cause of a sloppy window crank. The window rollers and bushings look ok down in the tracks, but when I bring the window up or down the crank seems sloppy. I mean that I am turning the crank but the window does not move at the same time. It is hard to explain, so I am hoping that someone has had this experience.
Reply
Old Apr 23, 2012 | 12:13 PM
  #2  
MelWff's Avatar
MelWff
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 18,710
Likes: 2,574
Default

the crank always has some slop in it, 1/2 inch either way, do you have more than that?
Reply
Old Apr 23, 2012 | 12:40 PM
  #3  
HunterPayne's Avatar
HunterPayne
Thread Starter
Advanced
10 Year Member
 
Joined: Sep 2005
Posts: 83
Likes: 0
From: Woodbridge VA
Default

Yes, it seems more than that. To the point where I try to help the window up and down with my hand on the top of the glass. The slop seems to be where the handle is. The passenger side seems more like you describe.
Reply
Old Apr 23, 2012 | 01:05 PM
  #4  
Easy Mike's Avatar
Easy Mike
Team Owner
Supporting Lifetime
20 Year Member
 
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
Default

You may need a regulator after all this time. Driver's side would - naturally- wear out sooner than the passenger's side.

Reply
Old Apr 23, 2012 | 02:25 PM
  #5  
Alan 71's Avatar
Alan 71
Team Owner
15 Year Member
Active Streak: 120 Days
Community Influencer
Top Answer: 5
 
Joined: Sep 2006
Posts: 31,230
Likes: 4,323
From: Westminster Maryland
Default

Hi hp,
It sounds to me like perhaps your winder **** might be worn.
The ****, and the shaft it connects to, both have teeth cut into them that mesh when the **** is pushed on to the shaft. If they're worn, the **** handle slips as you wind it up or down.
Both the **** and the shaft are available.
Maybe?
Regards,
Alan

Last edited by Alan 71; Apr 24, 2012 at 02:52 PM.
Reply
Old Apr 24, 2012 | 08:17 AM
  #6  
HunterPayne's Avatar
HunterPayne
Thread Starter
Advanced
10 Year Member
 
Joined: Sep 2005
Posts: 83
Likes: 0
From: Woodbridge VA
Default

Thank you very much. I was trying to determine what to look for before I tear it apart.
Reply
Old Apr 24, 2012 | 07:08 PM
  #7  
spdrcr29's Avatar
spdrcr29
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2009
Posts: 912
Likes: 47
From: Kansas City MO
Default

Its also possible that the bushing is worn out. Just a thought...

Corvette Central as well as other vendors I am sure offers these servicable parts.

Hope this helps.


http://www.parts123.com/parts123/yb....Z5Z5Z50000050G
Reply
Old Apr 24, 2012 | 09:13 PM
  #8  
Ghunt's Avatar
Ghunt
Instructor
10 Year Member
 
Joined: Jun 2009
Posts: 157
Likes: 1
From: Sebring florida
Default

I just went through this, maybe not the same as yours.
I replaced my cranks to only look better but after a while they were very sloppy and wouldn't work. I thought that the regulator or something else was broken. turned out the after market cranks
splines werent as long as the originals and the depth of the hole where the shaft goes in wasn't as deep and not allowing the spring "C" clip to grab the grove in the shaft.
I put the OEM's back on and all good.
Can't trust this ChiCom junk.

George
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-2

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

 Michael S. Palmer
story-3

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

 Joe Kucinski
story-4

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

 Joe Kucinski
story-5

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

 Verdad Gallardo
story-6

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-7

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-8

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-9

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
Old Apr 25, 2012 | 08:52 AM
  #9  
jnb5101's Avatar
jnb5101
Le Mans Master
 
Joined: Jul 2006
Posts: 8,117
Likes: 104
From: charlotte north carolina
Default

ghunt has it right-it's the after market cranks.
Reply

Get notified of new replies

To 1971 manual window crank





All times are GMT -4. The time now is 09:22 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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
story-6
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-7
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-8
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-9
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE