Speedo does not work - Team Camaro Tech
Team Camaro Tech join team camaro
Camaro Parts at SS396.com     
GROUND UP & SS396.com         
Official Sponsor of Team Camaro

Auto Insurance

Registered users (free) do not see these large ads

Transmission & Driveline Transmissions and Differentials

Thread Tools Display Modes
Old Jan 7th, 13, 08:16 PM
69&76's Avatar
69&76 69&76 is offline
Team Member

Join Date: Dec 2012
Location: CORONA, CA
Posts: 1,440
Default Speedo does not work

I replaced the speedo cable. I pulled the worm gear and checked to see if the teeth were broken, etc. The worm gear was fine. I turned the speedo by hand and the speedometer moved and worked.

Is there anything else you guys can think of that might be causing the speedometer not to work.

There are two things I can stand as a pet peeve. One are leaks and two is a speedometer that does not work.
Reply With Quote Quick reply to this message
Sponsored Links
Old Jan 7th, 13, 10:08 PM
larryh56 larryh56 is offline
Gold Lifetime Member

Join Date: Oct 2008
Location: So Cal desert
Posts: 1,232
Default Re: Speedo does not work

Is the gear on the output shaft of the tranny meshing correctly with the drive gear? The clip holding on the driven gear can break or fall out. Is the driven gear (what you called the worm gear) moving when you spin the rear tires with the cable disconnected and the rear wheels off the ground? Here is a cutaway picture http://www.transmissioncenter.net/sp...n_______va.htm
68 RS Coupe 327/350 TH, Detroit Speed, Hotchkis, Vintage Air, 8.5" 3.42 posi 10-bolt, MagnaFlow 2 1/2" exhaust, etc.

"The public cannot be too curious concerning the characters of public men."
Samuel Adams
Reply With Quote Quick reply to this message
Old Jan 7th, 13, 10:08 PM
Luwi67 Luwi67 is offline
Senior Tech

Join Date: Oct 2010
Location: Long Island, NY
Posts: 1,287
Default Re: Speedo does not work

By worm gear do you mean the driven gear inside the trans? You should pull that gear again and check the status of the drive gear in there as well.
67 Camaro 350
M20 4spd console,
8.5, 30 spline Eaton posi 373
Cowl Plenum
Custom 180 Headers
no radio
Reply With Quote Quick reply to this message
Old Jan 8th, 13, 05:06 PM
keithl1967 keithl1967 is offline
Gold Lifetime Member

Join Date: Jun 2005
Location: Harrisburg, PA
Posts: 1,307
Default Re: Speedo does not work

you may have the cable routed with too much "bend" in it (if you just replaced it)...could cause the speedo not to turn...make sure the cable is routed properly.
1967 Camaro
406, 10:1, comp xr282HR, Dart Iron Eagle 200cc, Holley Contender dual plane, Holley 750 DP
Muncie M-20
GM 8.5, 3.73 posi
Reply With Quote Quick reply to this message
Old Jan 8th, 13, 05:16 PM
69-Pace's Avatar
69-Pace 69-Pace is offline

Join Date: Jun 2010
Location: Hartford Connecticut USA
Posts: 9,126
Default Re: Speedo does not work

Also make sure the sheath of the cable is lubed and not dry.

1969 Z11 Pace Car - L48 350cid/300hp - 4 Speed Muncie 12 bolt rear.

Finally back on the road after being stranded in the garage for over 20 years. Follow her progress back to the road http://69pace.blogspot.com
Reply With Quote Quick reply to this message
Old Jan 8th, 13, 06:05 PM
jcfcamaro jcfcamaro is offline
Gold Lifetime Member

Join Date: Sep 2008
Location: Fairfax, Mo
Posts: 1,010
Default Re: Speedo does not work

Mine just started messing up too. sometimes it would work and other times it would go to 20mph and stop when I was going 60mph. Then one day it was stuck at 20 when the car was stopped . I took mine out then the needle went back to 0mph. What I found out was when the speedo was out it seemed to work when I spun it,but when I spun it and held it with some pressure on the side it would stick and not go back to 0mph. Long story short,I sent it to Denver Co to have it fixed,and just got it back the other day. But have not reinstalled it yet. It cost 139.00 plus shipping and tax 156.oo should be good for a long time .. Also I was running a new cable when it went bad. But this car had sat for 26 yrs ,but was in great shape. They told me at the speedo shop that 9 times out of 10 its something with the barrel and magnet out of adj.
Reply With Quote Quick reply to this message
Sponsored Links
Gear in this thread - Powered by O'Reilly Auto Parts
Team Camaro Tech > First Generation Camaro Info and Tech - 1967- 1969 "Where it all started" > Transmission & Driveline      Current Topic: Speedo does not work
Quick Reply

Register Now

In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.

Email Address:
First Name
Rather than just Hot69, gotta real name?
One last thing to do to slow down the spammers
Enter the first letter of this word: Camaro


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -7. The time now is 01:55 PM.

Camaros.net - 2009 AutoForums.com