79 tach question

[maddy]

The tach in my 79 midget will not start working until I rev the engine. Is there a fix?
Thanks much

 

[Trevor Jessie]

I'd start by checking the ground. Then the remaining connections. If it still doesn't work properly then you might watch for a used replacement. They can usually be bought very cheap.

 

[SilentUnicorn]

tap the glass on the tach...after aa while it just becomes a habit.

m

 

[spritenut]

I have to do that to my gas gauge on my Bugeye, and your right, it's habit now.
The tach on my 67 just started acting up so I tap on the glass on that now too.
But that has a good ground and clean connections. I just have to tear into it but I have too many projects going on right now.
So tapping works for now :wink:

 

[Hombre]

take it apart and put a few drops of WD40 on the stem with a tooth pick and let it set and run down for a bit. Fixed mine when I had the same problem. I think they just get dry after a bunch of years.

 

[maddy]

take it apart and put a few drops of WD40 on the stem with a tooth pick and let it set and run down for a bit. Fixed mine when I had the same problem. I think they just get dry after a bunch of years.

That works for me. Thanks!

 

[tweety]

Mine does it too. One of these years I'll try the wd40 trick.