erratic tach Stewart Warner

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#1 (permalink)

05-12-2011, 09:44 AM

healer1340 healer1340 is offline

CC Member

Join Date: May 2011

Location: North Kingstown, ri

Cobra Make, Engine: Custom built, 427 side oiler with dual fours

Posts: 1

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erratic tach Stewart Warner

My cobra has been on the road since1992. I had to replace the tach about 5yrs ago because it would be erratic, jumpy, and would often indicate twice the actual RPM's.
Now I'm having the same problem. I wonder if the MSD ^AL is causing a problem with the tach circuitry oor if I just got two bad tach's.The is a company , APT that supposedly repairs them and makes them more "friendly" with MSD units.
Any information would be appreciated.
Steve

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