Got my car on the road finally after completely restoring brakes and brake lines but when I drive it the speedometer needle bounces around a bit is there a way to fix this or do I replace the whole thing? Also when I put the car into reverse from park it feels like the whole car drops down is that normal? Car is a 1979 late for reference thanks!
C3 speedometer
- Thread starter FarrellyT
- Start date
ddgermann
Power User
Congratulations on the new brakes.
It all sounds normal to me for a car this age.
You may need a new Speedo head or possibly some cable lube as it think they were still mechanical back then.
The rear dropping is lovely lovely torque acting on your spring. I’ve seen this with many C3s. How much it’s dropping is the key. Guessing soon you will have the exact answers from the CCF C3 gurus.
Happy holidays
XFIRE82
Power User
You could try slow the idle down which will give it less torque when you put it in reverse thus not give that feeling. As far as the jumpy speedo, like ddgermann said maybe all it needs is some cable lube. The cable will pull out either from the tranny end or speedo end , not sure which one only , but can pull it out and clean and use light oil or quality spray lube the whole thing. If you have cruise control then do them both.
FarrellyT..welcome to CCF.
An eratic speedometer could be a few things.
The two most prominent issues could be
a dry cable... spray some lube down the tube.
Or
Your plastic speedo gear in the tranny is wearing...
This can be checked easily from under the car.
Graham
An eratic speedometer could be a few things.
The two most prominent issues could be
a dry cable... spray some lube down the tube.
Or
Your plastic speedo gear in the tranny is wearing...
This can be checked easily from under the car.
Graham
Last edited:
If it has cruise control the cable is a two part assembly with the cruise mechanical over vacuum assembly in the middle. Mine bounced around even with new cables and turned out to be the cruise control assembly.