Speedometer making clicking/grinding noise

[Jamul74]

Anyone know what might be causing this? Speedo bounces especially when slowing down through about 30 to 0. Clicks correspond to bounces. Is this something I might be able to fix or do I have to send it off somewhere for big bucks. Thanks

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Dan S.
1974 911 Targa

[pbs911]

I had this problem with others cars, not the P-car. Turned out to be the speedo cable and not the guage. Check the connections at both ends. It may have come loose.
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Paul
78SC Targa

[Planter91C2]

Originally posted by pbs911:
I had this problem with others cars, not the P-car. Turned out to be the speedo cable and not the guage. Check the connections at both ends. It may have come loose.

same here too, but the speedo cable just needed to be lubricated. do this at the connection.

[Jamul74]

Thanks guys,
Can I assume I get at it through the trunk and not through the dash?

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Dan S.
1974 911 Targa

[Jens Wendorff]

Pull the speedo out of the dash and you will be able to grab the nut of the drive. Should work "hand tight" w/o tools.
Getting there through the trunk requires removal of the fresh air unit as far as I remember.

Jens
'76 2.7 CIS with '73 body conversion

[Jamul74]

Thanks Jens,
I guess at this point I should point out that the only manuals I have are Clymer and Haynes Would the Bentley manual or upfixnderporsche cover procedures like this. I hate to just start tearing stuff apart due to my propensity for totally Effing up most everything I touch on this car.

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Dan S.
1974 911 Targa