C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Another Speedo question..

Thread Tools
 
Search this Thread
 
Old May 30, 2018 | 08:37 AM
  #1  
ray_ray's Avatar
ray_ray
Thread Starter
Pro
 
Joined: Feb 2014
Posts: 684
Likes: 40
From: Laurel hill, nc
Default Another Speedo question..

Where the Speedo connects to the transmission,
should you be able to move the cable and can see it wiggle where it goes in the transmission or should it not move at all. Trying to trouble shoot no Speedo at the dash thanks all.. does anyone know what a kick up seloiniod for a a.c. does and where to get one.

Last edited by ray_ray; May 30, 2018 at 08:40 AM. Reason: Continuing question
Reply
Old May 30, 2018 | 01:03 PM
  #2  
Willcox Corvette's Avatar
0Willcox Corvette
Former Vendor
 
Joined: Aug 2006
Posts: 76,656
Likes: 1,850
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Default

Originally Posted by ray_ray
Where the Speedo connects to the transmission,
should you be able to move the cable and can see it wiggle where it goes in the transmission or should it not move at all. Trying to trouble shoot no Speedo at the dash thanks all.. does anyone know what a kick up seloiniod for a a.c. does and where to get one.
The cable at the tranny should be pretty tight and on a good car I'm sure if you tried hard enough you could make it move, but it should be pretty snug to the tranny. You didn't say what year the car is?

Willcox
Reply
Old May 30, 2018 | 01:53 PM
  #3  
ray_ray's Avatar
ray_ray
Thread Starter
Pro
 
Joined: Feb 2014
Posts: 684
Likes: 40
From: Laurel hill, nc
Default

It's a 82 , 4 speed manual installed
Reply
Old May 31, 2018 | 12:28 AM
  #4  
doorgunner's Avatar
doorgunner
2026 Loser of the Year
Supporting Member
10 Year Member
Veteran: Army
Photogenic
Photoriffic
 
Joined: Sep 2013
Posts: 36,557
Likes: 7,006
From: New Or-leens Loo-z-anna
Default

Originally Posted by Willcox Corvette
The cable at the tranny should be pretty tight and on a good car I'm sure if you tried hard enough you could make it move, but it should be pretty snug to the tranny. You didn't say what year the car is?

Willcox
I had a similar problem. The 4-sided core was bottoming-out inside the transmission gear/binding against the inside of the gear, and not allowing the cable housing to seat against the transmission. The housing could be wiggled with slight finger pressure. I ground 1/16" off the end of the core so the cable housing would fit firmly against the transmission....my transmission was an automatic, though.

Last edited by doorgunner; May 31, 2018 at 12:29 AM.
Reply
Old May 31, 2018 | 02:02 PM
  #5  
Willcox Corvette's Avatar
0Willcox Corvette
Former Vendor
 
Joined: Aug 2006
Posts: 76,656
Likes: 1,850
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Default

Originally Posted by doorgunner
I had a similar problem. The 4-sided core was bottoming-out inside the transmission gear/binding against the inside of the gear, and not allowing the cable housing to seat against the transmission. The housing could be wiggled with slight finger pressure. I ground 1/16" off the end of the core so the cable housing would fit firmly against the transmission....my transmission was an automatic, though.
Doorgunner is right... and I just remembered a car we had this issue with and it's the same one we have with speedometers all the time. Possibly part of an old tip is broken off in the gear. On the speedometers I have a small section of spring steel (it's the same inner cable we use to make heater control cables), and I took a set of side cutters and made little notches in the side. I heat this up with a torch and then force it into the end of the speedo heads.... then I allow it to cool down. Once it cools you just pull the broken portion out.

Now the issue is the gear in the tranny is plastic, so you may need to pull the gear and look inside of it. If you see any portion of the old end gear then you'll probably need to replace it.

Ernie
Reply
Old Jun 1, 2018 | 10:57 PM
  #6  
ray_ray's Avatar
ray_ray
Thread Starter
Pro
 
Joined: Feb 2014
Posts: 684
Likes: 40
From: Laurel hill, nc
Default

Originally Posted by Willcox Corvette
Doorgunner is right... and I just remembered a car we had this issue with and it's the same one we have with speedometers all the time. Possibly part of an old tip is broken off in the gear. On the speedometers I have a small section of spring steel (it's the same inner cable we use to make heater control cables), and I took a set of side cutters and made little notches in the side. I heat this up with a torch and then force it into the end of the speedo heads.... then I allow it to cool down. Once it cools you just pull the broken portion out.

Now the issue is the gear in the tranny is plastic, so you may need to pull the gear and look inside of it. If you see any portion of the old end gear then you'll probably need to replace it.

Ernie
if I disconnect the cable from the transmission about how much trans fluid will I lose, do I need a bucket underneath..thanks
Reply
Old Jun 2, 2018 | 05:19 PM
  #7  
tehjrow's Avatar
tehjrow
Instructor
 
Joined: Jul 2017
Posts: 217
Likes: 21
Default

Originally Posted by ray_ray
if I disconnect the cable from the transmission about how much trans fluid will I lose, do I need a bucket underneath..thanks
I'm also wondering this. I have a trans leak and I think it might be coming from the speedo cable.
Reply
Old Jun 3, 2018 | 12:39 PM
  #8  
Hayes69's Avatar
Hayes69
Racer
 
Joined: Jan 2017
Posts: 272
Likes: 23
From: McKinney TX
Default

Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

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

 Verdad Gallardo
story-2

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

 Joe Kucinski
story-3

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

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

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

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Jun 3, 2018 | 09:11 PM
  #9  
C3 4ME's Avatar
C3 4ME
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2005
Posts: 6,247
Likes: 471
From: Glen Allen, VA
Default

On a manual, you will not loose fluid if you disconnect the speedo cable, IIRC. You should definitely disconnect it though, and then chuck up the cable in a drill and run the drill in reverse and see if the speedo works. This will of course eliminate anthing beyond the trans as the problem if your speedo works this way.
Reply
Old Jun 3, 2018 | 09:34 PM
  #10  
ray_ray's Avatar
ray_ray
Thread Starter
Pro
 
Joined: Feb 2014
Posts: 684
Likes: 40
From: Laurel hill, nc
Default

Originally Posted by C3 4ME
On a manual, you will not loose fluid if you disconnect the speedo cable, IIRC. You should definitely disconnect it though, and then chuck up the cable in a drill and run the drill in reverse and see if the speedo works. This will of course eliminate anthing beyond the trans as the problem if your speedo works this way.
thank you sir I will try that
Reply

Get notified of new replies

To Another Speedo question..





All times are GMT -4. The time now is 06:22 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE