Analog Tach Wandering

skuter99skuter99 Member Posts: 174 ✭✭
in Engine Discussions

Anyone else have their analogue tach just randomly go up and down while the engine is idling?

No change in engine sound, and digital tach on the garmin stays right on the money.

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  • Aqua_AuraAqua_Aura Member Posts: 2,705 ✭✭✭✭✭
    Faria? Yes. When I start it indicates about 1300 then I tap it and it goes to about 800. As it moves around from throttle change it is not very accurate. Sometimes in cruise it will wander upwards and it needs a tap. 
    1997 Bayliner 3988
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  • LaReaLaRea Member, Moderator Posts: 8,074 mod
    Yes, it's a common problem in Faria tachs from the mid-2000's.  Sometimes it can be temporarily solved by re-seating the plug on the back-side of the tach, or chasing issues with ground connections.  
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  • skuter99skuter99 Member Posts: 174 ✭✭
    thanks !!
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  • MarkBMarkB Member Posts: 4,009 ✭✭✭✭✭
    The Faria Walk ... yup. You can pull the gauge off. There's a dial in the back to select cylinders. Some times you can switch it off and back ... and it steadies out.

    Boat Name: King Kong

    "Boat + Water = Fun"

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  • reneechris14reneechris14 Member Posts: 3,134 ✭✭✭✭✭
    I had mine rebuilt by Faria here in Ct. 3 years ago and last time out my port tach started to wander. Hoping it was just a long winter and things will steady out 
    2005 Rinker FV342  Pawcatuck river,Ct
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  • Black_DiamondBlack_Diamond Member Posts: 5,439 ✭✭✭✭✭
    Faria gauges, aka the “tap-tap” gauges. 

    Past owner of a 2003 342FV
    PC BYC, Holland, MI
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  • Aqua_AuraAqua_Aura Member Posts: 2,705 ✭✭✭✭✭
    Someone is selling the Kronos faria tach with hour meter on Amazon. Just in case anyone wants to replace theirs. 
    1997 Bayliner 3988
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