Tach

dozerII

dozerII

Admiral
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Oct 25, 2009
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I just finished a complete rebuild on my StarCraft SS201. It as a 1989 4.3 Mercruiser Alpha. I installed new Faria gauges, the tach is the only one not working. I checked the setting on the tach and it is on #3 as stated in the Faria instructions. How is the best way to trouble shoot this?
Thanks
 
achris

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Re: Tach

Check you have power to the instrument, and a good ground. If they both check out, then check continuity of the signal wire all the way back to the coil '-' terminal.
 
Don S

Don S

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Re: Tach

Is the gray wire hooked to the - terminal of the coil? That's the wire that signals the tach.
 
dozerII

dozerII

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Oct 25, 2009
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Re: Tach

achris said:
Check you have power to the instrument, and a good ground. If they both check out, then check continuity of the signal wire all the way back to the coil '-' terminal.
Click to expand...

Don S said:
Is the gray wire hooked to the - terminal of the coil? That's the wire that signals the tach.
Click to expand...

I will check both, you guys are great.
 
dozerII

dozerII

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Joined
Oct 25, 2009
Messages
6,527
Re: Tach

Thanks guys, I checked the setting on the back of the tach, it was set on the right setting but I think not quite making contact. Moved it a little and reset it and all is working well.
 
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