Tachometer

Discussion in 'Electronics Q&A' started by WahooUSMA, Jun 14, 2015.

  1. WahooUSMA

    WahooUSMA Member

    123
    Jan 5, 2012
    Southern California
    2002 290 Amberjack
    Twin 5.0 Merc Bravo III
    I am looking for an OEM tachometer for my 2003 Amberjack - Cant get the engines sync'd and tried just about everything except replacing the current aftermarket tach with an OEM.

    Thanks in advance.
     
  2. Henry Boyd

    Henry Boyd Well-Known Member GOLD Sponsor

    Apr 24, 2007
    Newburyport, on the peaceful and serene Merrimack
    02' 280 DA
    496 w BIII
    What does the tach look like? I have a single engine tach I took off after I did the smartcraft upgrade. It has a rectangular plug with six (?) terminals.

    Henry


    Sent from my iPad using Tapatalk HD
     
  3. Lazy Daze

    Lazy Daze Well-Known Member TECHNICAL Contributor

    Apr 21, 2009
    PA
    Various
    Various
    Just of curiosity, did you try swapping tachs - port for stbd - just to eliminate any other variables?
     
  4. dpmulvey

    dpmulvey New Member

    Dec 19, 2007
    Homeport: Charles City, VA
    1999/2007 330 Sundancer Hardtop.
    6.2 Merc Horixons
    1.5:1 Velvet Drives
    Have you considered Aetna digitals.
     
  5. WahooUSMA

    WahooUSMA Member

    123
    Jan 5, 2012
    Southern California
    2002 290 Amberjack
    Twin 5.0 Merc Bravo III
    I think it is the standard 3in tach with the hour meter in LCD.
     
  6. Bartlett Bob

    Bartlett Bob New Member

    24
    Oct 8, 2018
    1997 Sedan Bridge 400
    Cat 3116
    has anybody had issues with a tach that shows steady RPMs sometimes and swings wildly at other times, looking for a how to fix it kind of responce
     
  7. fwebster

    fwebster Well-Known Member TECHNICAL Contributor PLATINUM Sponsor

    Oct 6, 2006
    Middle Tennessee ; Panama City Beach, FL
    1996 450DA
    3116 Caterpillars
    Yes..........probably 80% of the Sea Ray owners with diesel engines have. Gas engine tachs don't seem to be as prone to going nutty.

    Google "clubseay Aetna tach" and you will see an elegant solution to the tach problem.
     
  8. Bartlett Bob

    Bartlett Bob New Member

    24
    Oct 8, 2018
    1997 Sedan Bridge 400
    Cat 3116
    thanks for the response I will check it out
     

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