Jumping needle

[Cornpatch MO]

Just got my speedo working finally on my 64 Dodge. New cable, and the speedo drive looks good after clocking it in. The odometer works good , but the speedometer needle is erratic. Anyone know what is wrong, or what to do to correct that?... Thanks for any info.......................MO

 

[kiwigtx]

I would check for any kinks (or tight bends) in the cable route, also I remember someone saying lubrication of the inner drive cable is a good idea.

 

[Cornpatch MO]

I would check for any kinks (or tight bends) in the cable route, also I remember someone saying lubrication of the inner drive cable is a good idea.

New cable and I was careful not to kink it or get it to close to the exhaust. Thanks..BTW the speedo has not been in use for several years........................MO

 

[Bruzilla]

I had that problem on my Roadrunner. I shot a little bit of WD40 into the hole the cable connects to and that helped. I think the issue is lubrication of the speedo mechanism, and it really needs to be taken apart to do it properly.

 

[PurpleBeeper]

Old school way to go (works well) is to use some graphite on the inner cable. The best way would be to pull it out, spay coat it & slide it back in (that's possible, right?). Second best way is to put some of the dry powder graphite (sold in hardware stores or at a lock smith shop) on both ends and it will work its way down into the cable (at least partially). A tiny shot of WD-40 into the back of the speedometer itself might help too.