speedo / odometer

[PDW HOTRODS]

I have a 56 truck that the speedometer works but the odometer does not. Any ideas on how to fix? I thought they were tied togather and both would or would not work. Thanks.

[Old Crow]

The speedo is driven by a cable that spins a magnet, while the odo is gear driven off the same cable. Since the speedo works, you know the cable is good.
My guess would be a stripped gear on the odometer.

[Russell Ashley]

I have the same problem, my odometer has stopped too. Mine stopped when it got to a place where several of the digits should have rolled up. Unfortunately the only way to fix it is to remove the cluster, remove the speedometer, and repair or replace it.

[_Ogre]

unfortunately i've had my speedo cluster apart many times over the past year
no magic in there, other than the speedo itself
the odometer is a couple of gears and the numbered head

there are a couple of ways the odometer could stop working without any damage to the gears
there is a clip that holds the long brass gear in that is most likely your problem
take it apart and look at what has slipped out of place



i reset the odometer to the actual miles on my truk since the rebuild



there is also a member on here TBONE1964 that does speedo repair
i sent a speedo head to him for calibration
he lives in juntion city oregon and may be close to you

but... other than calibration the speedo/odometer is pretty simple
i thought i was being smart when i bought a new one when i rebuilt truk
cheap offshore junk is all there is available, i went thru 4 different new speedos before a member sent me an old head and i had it calibrated

[SCHRUMGMC]

Heck my speedometer doesn't work at all and the odometer doesn't either

[Old Crow]

Originally Posted by SCHRUMGMC

Heck my speedometer doesn't work at all and the odometer doesn't either

In that case I'd be checking out the cable.

[SCHRUMGMC]

I have a brand new one in there