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124 speedometer drive?

Posted: Mon Aug 05, 2019 2:44 am
by fiat850
Found this mixed in with some random 850 parts I bought recently, it's definitely not for an 850. Can anyone help me verify if this a 124 speedometer drive unit? It has a green splash of paint on the end, which is sometimes used to denote a specific drive ratio/gearing (but I don't know which ratio that is).

Look familiar to anyone?

124speedodrive1.jpg
124speedodrive1.jpg (322.37 KiB) Viewed 1470 times
124speedodrive2.jpg
124speedodrive2.jpg (308.6 KiB) Viewed 1470 times
124speedodrive3.jpg
124speedodrive3.jpg (292.2 KiB) Viewed 1470 times

Re: 124 speedometer drive?

Posted: Mon Aug 05, 2019 6:57 am
by bartigue
Looks like one but the two I have both have the fiat part number and name stamped on them.

Re: 124 speedometer drive?

Posted: Mon Aug 05, 2019 10:50 am
by 18Fiatsandcounting
Sure looks like the 124 speedometer drive. Mine (still in the car) came with the optional 5 cent service upgrade:
Nickel in speedometer drive 71 Fiat.JPG
Nickel in speedometer drive 71 Fiat.JPG (38.35 KiB) Viewed 1447 times
-Bryan

Re: 124 speedometer drive?

Posted: Mon Aug 05, 2019 2:15 pm
by fiat850
bartigue wrote:
Mon Aug 05, 2019 6:57 am
Looks like one but the two I have both have the fiat part number and name stamped on them.
That's how I vaguely remember them being as well, but this one has no cast-in numbers/letters anywhere on it (hence, my inquiry here). Now that I see exactly where yours has the cast-in text on it, I'll have to look closer at mine in that area.

One thing I've noticed looking at the photos posted here, is that the cable-attachment pod on mine is on the opposite side of the main "vertical" gear shaft than yours. Comparing my first photo above to your photo, mine has the cable pod on the "left" side, while yours is on the "right".

Re: 124 speedometer drive?

Posted: Mon Aug 05, 2019 2:54 pm
by fiat850
Aha! I think I've got it! :D

Seeing how my cable-drive pod is on the opposite side as compared to the 124 drives posted here, I surmised this would rotate the speedo cable in the opposite direction as well. Likely for a rear-engined set-up, but not an 850 (or X1/9). Then I remembered this:

early600Dtrans01.JPG
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early600Dtrans04.JPG
early600Dtrans04.JPG (296.46 KiB) Viewed 1425 times
early600Dtrans05.JPG
early600Dtrans05.JPG (214.99 KiB) Viewed 1425 times

Fiat 600D transaxle speedo drive! :ugeek: