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Old 07-31-2018, 02:56 AM   #3
Ironangel
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Join Date: Feb 2010
Location: Falls City, Nebraska "100 Miles From Nowhere"
Posts: 2,219
Re: tach install trouble

Quote:
Originally Posted by toolboxchev View Post
Get rid of that Chinese junk and buy a Sun Rach
Maybe you should take some spelling lessons? ...Which of the three tach signal hook up options are you using? Preferably #1, green wire to the (-) negative terminal of the coil. Make sure the tach is grounded to the firewall. Also make sure your battery is grounded to the motor, and the motor to the cab, and cab to frame! Follow the instructions for the red to switched power, and the white to the cluster terminal. Both are available on the fuse box...What distributor do you have? Is it an HEI with the coil built in? One last thing, most tachs have a switch for 4, 6, or 8 cylinder somewhere on the back, does yours? If none of the above works, you may be committed to using one of the inductive pick up options rather than the green wire to negative terminal on the coil...In other words, that tach may be a 6 cylinder tach...And rather than fuss with trying to mount it behind the cluster panel, just mount it to the column in front of the cluster...?
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