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jimmcc jimmcc is offline
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Join Date: Jun 2005
Location: Birmingham, Alabama
Posts: 274
Originally Posted by 930 Porsche View Post
Jim and Nathan,

I took the tach out, unplug the BLK/PUR wire and turn the ignition on and took a grounded wire and stroke the connector of the tach location and nothing happen. Any other test we can do or can we conclude that the tach is dead? If it is has anybody taken a tach apart?

From what you have said I would believe the tach is dead. Did you rapidly stoke the grounded wire to the tach? That would be the only other thing to check for. Connecting it to the white wire from the CDI probably damaged it.

There are repair shops that specialize in Porsche instrument repair but I don't know if they can repair a tach. I don't believe I've ever seen a schematic of the tach but I believe it uses a single vintage chip from the 70s which could be difficult to find.

Are you in Napes Italy or Naples Florida?

Good luck and sorry.

Old 08-24-2009, 05:03 PM
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