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Join Date: May 2013
Location: Tampa bay, Florida
Posts: 304
Garage
1975 911 speedo issues, Help!

Still a newb with my 1975 911 Targa.
My speedometer works, but the odometer and tripometer do not. I have tried two different speedos and get an accurate speed indicator but no movement on the odo or trip??

Could a wrong cable (installed by the previous owner) be an issue. Any idea which correct cable I need to buy? (Our host is pretty vague on the 1975 cable)

BTW, when i turn the end (that the cable slips into with a small screwdriver) the odometer does move, so i don't think it is a bad cable, but might i be missing something?

HELP!
Thank you.

Jim
Safety Harbor, fl.
'75 911s Targa

Old 07-19-2013, 01:22 PM
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Join Date: Apr 2010
Location: New Orleans, LA
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the little gears that drive the odo can break. i believe there's a tech article on host site about this.
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1982 911SC, Mocal oil cooler, Bilsteins, Carrera tensioners, backdated heat, factory short shift, Seine gate shift, turbo tie rods, pop off.
2005 Mercedes-Benz C230 kompressor sport 6-speed (daily driver)
Old 07-19-2013, 03:48 PM
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To add some more info....When I took it apart, there were no broken gears and I could actually rotate each the trip and odometer with it cycling through 10, 100, 1,000, etc....mile increments. So I don't think any gears are split or broken. Still perplexed about this....

Old 07-19-2013, 05:44 PM
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