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Replacing Speedometer Head- How difficult?

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Old May 10, 2006 | 03:10 PM
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Default Replacing Speedometer Head- How difficult?

Hi All
My trip Odometer cable wore out on my 73
I bought a new cable and while removing the old one I broke off the mount right at the Speedometer :o

Has anybody replaced the entire Speedo head (Guage)
If so, how difficult is this procedure?

I found a new Speedometer at Doc Rebuild for $200 but it doesnt show Kilometers per hour as the original does...
Is KMH standard on a 73?

Thanks in advance
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Old May 10, 2006 | 03:30 PM
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Speedos are relatively easy to take apart. I've done it several times. Just take your time and take pics as you go the first time so you have a reference to look back on. The hardest part was removing the needle in order to remove the faceplate. Be very careful when pulling the needle off as you can easily bend it. Do not use any kind of pliers. Use only your fingers to pull it off. The rest is fairly easy to take apart. You might want to replace the plastic gears while you have it apart and make sure the anti-tamper guide for the odometer isn't broken.

Last edited by Buzzardz_vette; May 10, 2006 at 03:32 PM.
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Old May 10, 2006 | 03:32 PM
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I don't know if km was standard in '73, but I do have a nice working one from a 1st day production '70 with 44,078 miles showing. Faded green #s and NO km.
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Old May 10, 2006 | 03:36 PM
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Originally Posted by Buzzardz_vette
Speedos are relatively easy to take apart. I've done it several times. Just take your time and take pics as you go the first time so you have a reference to look back on. The hardest part was removing the needle in order to remove the faceplate. Be very careful when pulling the needle off as you can easily bend it. Do not use any kind of pliers. Use only your fingers to pull it off. The rest is fairly easy to take apart. You might want to replace the plastic gears while you have it apart and make sure the anti-tamper guide for the odometer isn't broken.
Good advice, but you have to drop the drivers' dash pad to gain access to the speedo. It mounts on the backside of the pad. PITA of the first order since everything behind and under the dash is in your way. Three beer job sippin' slow.
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Old May 10, 2006 | 04:01 PM
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Originally Posted by Easy Mike
Good advice, but you have to drop the drivers' dash pad to gain access to the speedo. It mounts on the backside of the pad. PITA of the first order since everything behind and under the dash is in your way. Three beer job sippin' slow.
Tis true, a major PITA to remove the dash. Recommend dropping the steering column to get some extra clearance. And label your wires when you remove them. Makes it easier when reinstalling them.
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Old May 10, 2006 | 04:45 PM
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Originally Posted by Buzzardz_vette
Speedos are relatively easy to take apart. I've done it several times. Just take your time and take pics as you go the first time so you have a reference to look back on. The hardest part was removing the needle in order to remove the faceplate.
Thanks for the quick replys as always

Maybe I am mistaken or mis understood...
I believe I need to change out the ENTIRE speedometer as the threaded part on the back broke while I was removing the trip cable...

I would like to hear anybody's opinion about the KMH ussue

Thanks very much

Last edited by Bob Onit; May 10, 2006 at 05:58 PM.
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Old May 10, 2006 | 04:52 PM
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Originally Posted by Bob Onit
Thanks for the quick replya as always

Maybe I am mistaken or mis understood...
I believe I need to change out the ENTIRE speedometer as the threaded part on the back broke while I was removing the trip cable...

I would like to hear anybody's opinion about the KMH ussue

Thanks very much
Not neccesarily. You may just need the steel shell that holds the guts. Can you take a pic of the damaged area and post it?
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Old May 10, 2006 | 05:06 PM
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Originally Posted by Buzzardz_vette
Can you take a pic of the damaged area and post it?
Yes I can
But if I take it apart I wont be able to drive the car (well I suppose i could) But I only want to do this job once

There is a threaded area on the back of the speedo (same place where the trip odometer cable screws in, where the lights twist in, and where the speedometer cable clips in)

It is definately part of the structure...very thin, light green sheet metal type material.
This is where it broke (twisted out would be a better term) when I attempted to remove the trip cable.

I dont know what the replacaments look like so I dont know if I need the entire assembly or not?????

Thanks for the replys
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