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Join Date: Jul 2010
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Tach inop

Are there any instrument shops that would overhaul the tachometer on my 87 930?
Old 07-10-2010, 05:59 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
OFF THE BOOST PIPE NOW...
 
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Join Date: Oct 2003
Location: Mount Pleasant, South Carolina
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North Hollywood Speedo.
Old 07-10-2010, 06:34 PM
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Thanks a bunch. Will call them on monday
Old 07-10-2010, 06:42 PM
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There is also Palo Alto Speedometer.
Palo Alto Speedometer: Repair, Restoration, and Sales of Automobile Gauges

Both places are good but NHS wouldn't sell me parts and Palo Alto did.

I would check the red/black 12 volt supply wire going to the tach, brown ground wire, and continuity of the black/purple trigger wire going from the 6 pin CDI plug to a spade terminal on the tach before sending it off.

If the ground is bad the tach's instrument lights won't work right and will try to use the boost gauge sender wire as a ground.

Last edited by JFairman; 07-11-2010 at 05:30 PM..
Old 07-11-2010, 05:22 PM
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