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Registered
Join Date: Jan 2002
Location: Austin, TX
Posts: 298
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73 911 Speedometer questions?
It appears that my 73 911 has been converted from a cable driven speedometer to an electronic speedometer. What looks like the end of speedometer cable, that has fittings that would connect to the back of a gauge, is laying in the frunk. When I pulled the speedo to get access to the wiper assembly I noticed there was some speaker wire and other none OE looking wires connected.
Does it sound like this has been converted? If so, is there any documentation out there? Would you at this point return it to cable driven for originality? Or keep it as is? It is working.
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1973 911T Sepia Brown MFI 1986 Carrera Meteor Gray Metallic |
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11-27-2020, 06:35 PM
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Functionista
Join Date: Jul 2011
Location: CO
Posts: 7,717
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Post your transmission serial and type number. It’s likely that a later model transmission has been installed. Porsche switched to a electric speedo sometime in mid 75 I think....
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Jeff 74 911, #3 I do not disbelieve in anything. I start from the premise that everything is true until proved false. Everything is possible. Last edited by manbridge 74; 11-27-2020 at 08:35 PM.. |
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11-27-2020, 06:40 PM
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Rescuer of old cars
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Converting back to cable driven will likely require a different transmission...
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2018 718 Cayman 2.0 Priors - '72 911T coupe, '84 911 Carrera coupe, '84 944, '73 914 2.0 |
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11-27-2020, 07:03 PM
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Registered
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Location: Austin, TX
Posts: 298
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Quote:
That has to be what happened. There is a wire running to the transmission. The SN is half rubbed off the boss. Partial serial number.  Wire coming from the transmission. 
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1973 911T Sepia Brown MFI 1986 Carrera Meteor Gray Metallic |
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11-28-2020, 06:48 AM
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Thats your speedo sensor on the side of transmission
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11-28-2020, 08:14 AM
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Definitely not the original transmission.
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Ed 1973.5 T |
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11-29-2020, 04:48 AM
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'84 Carrera Coupe (Sold)
The Yellow One (Sold)
The one I wanted for decades (Sold)
Cayman
The Other Woman
