Can anyone tell me what this is?

Discussion in 'Sport Cruisers' started by chris sirizzotti, Jul 11, 2019.

  1. chris sirizzotti

    chris sirizzotti Member

    88
    Feb 6, 2019
    2003 300DA SUNDANCER
    MERCRUISER 5.0 W/BRAVO III
    I'm assuming a fuel filter but when I Google the part number nothing comes up? Mabey that number in the picture is not the P/N? 20190606_193122.jpg
     
  2. JimG

    JimG Well-Known Member SILVER Sponsor

    Nov 4, 2008
    Southern WV
    2007 310 DA
    Kohler 5ECD
    Twin 350 Mags
    Raw Water Cooled
    V-Drives
    Yep, looks like a fuel filter (assuming that's the fuel line). That's probably not the part number you see there... it might be under the bracket.
     
  3. AJSB

    AJSB Member

    60
    Feb 24, 2014
    Maryland
    2000 290AJ
    2017 6.2L 350 ECT w/Bravo III Drives
  4. chris sirizzotti

    chris sirizzotti Member

    88
    Feb 6, 2019
    2003 300DA SUNDANCER
    MERCRUISER 5.0 W/BRAVO III
    ok thanks!
     
    Captn TJ likes this.
  5. Captn TJ

    Captn TJ Active Member

    705
    Sep 19, 2017
    Catawba Island, Oh
    2005 280DA
    Raymarine E80
    5.0 with Bravo 3
  6. Steve S

    Steve S Active Member GOLD Sponsor

    988
    Jun 5, 2007
    Northern IL.
    2000 400 Sedan Bridge with twin CAT 3116's

    2000 340 Sundancer - SOLD!
    210 Monaco 1987 - SOLD!
    Twin Caterpillar 3116's 350 HP straight drives
    If you look to the left of the black ring you can see the last digit "2" of the part number.
     
  7. speakrdude

    speakrdude Well-Known Member

    Feb 21, 2009
    Northwest Arkansas
    2002 Sea Ray 340 DA
    Raymarine C80 Tri Data
    twin 6.2 MX MPI
    Just replaced 2 on my 340.
    Auto Zone had in stock.
    Thinking of replacing with spin on water/fuel seperators.
    Any pros/cons?
     
  8. chris sirizzotti

    chris sirizzotti Member

    88
    Feb 6, 2019
    2003 300DA SUNDANCER
    MERCRUISER 5.0 W/BRAVO III
    did you have to replace your fitting so far every one i tried for a car don't fit the stock fittings on my sea ray i believe are pipe thread. is you didnt what is the part number for the one you got?
     
  9. speakrdude

    speakrdude Well-Known Member

    Feb 21, 2009
    Northwest Arkansas
    2002 Sea Ray 340 DA
    Raymarine C80 Tri Data
    twin 6.2 MX MPI
    TRY ff3504. Your boat is plumbed correctly.
     
  10. speakrdude

    speakrdude Well-Known Member

    Feb 21, 2009
    Northwest Arkansas
    2002 Sea Ray 340 DA
    Raymarine C80 Tri Data
    twin 6.2 MX MPI
    Duralast Fuel Filter FF3504DL
     
  11. chris sirizzotti

    chris sirizzotti Member

    88
    Feb 6, 2019
    2003 300DA SUNDANCER
    MERCRUISER 5.0 W/BRAVO III
    So that filter fit the stock fitting your saying?
     
  12. speakrdude

    speakrdude Well-Known Member

    Feb 21, 2009
    Northwest Arkansas
    2002 Sea Ray 340 DA
    Raymarine C80 Tri Data
    twin 6.2 MX MPI
    Yes sir.
     
  13. iBoat Skipper Doug

    iBoat Skipper Doug Active Member

    123
    Aug 8, 2018
    Green Bay, Wisconsin, USA
    2003 225 Weekender w/Bravo III drive
    2019 Venture trailer
    5.7 MPI Mercruiser w/Bravo III drive

    Your boat should have a fuel filter AND a water/fuel separating filter.

    I’m fairly certain you already have both.
     
  14. speakrdude

    speakrdude Well-Known Member

    Feb 21, 2009
    Northwest Arkansas
    2002 Sea Ray 340 DA
    Raymarine C80 Tri Data
    twin 6.2 MX MPI
    Nope. There is a water/fuel sep for the genny, but the only others are the mentioned above!
     
    iBoat Skipper Doug likes this.
  15. iBoat Skipper Doug

    iBoat Skipper Doug Active Member

    123
    Aug 8, 2018
    Green Bay, Wisconsin, USA
    2003 225 Weekender w/Bravo III drive
    2019 Venture trailer
    5.7 MPI Mercruiser w/Bravo III drive
    06B88631-5170-40A8-B057-D6DBF7E6C6AE.png B12E4D4F-407E-4F83-82E8-A588A4D78BD4.jpeg 83B09354-5C95-4D62-80F9-257B684B86DA.jpeg 720FE6C9-C45B-4646-BC32-37AC5F672BB4.jpeg C9B3E181-CF79-4F79-ADE7-61FC00055025.png
    It’s possible someone removed your fuel / water separating filter, but it had one when Mercury manufactured it.

    This photo shows its location. You can not see it from above. If you are running v-drives, you would need to use your hands to feel it, or I guess you could do a head stand.

    Either way, the two filters, a fuel filter and a water separating fuel filter perform different tasks. One does not replace the other. Please do not read “water separating fuel filter” as “water separating filter” AND “fuel filter.” Motor damaging particulate can pass through a water separating fuel filter but not a fuel filter. Motor damaging water can pass through a fuel filter but not a water separating fuel filter.

    You need both.

    The water separating fuel filter only stops particulates down to 25 microns vs 10 microns for the fuel filter. The fuel filter does not stop water.
     
    Last edited: Jul 25, 2019
  16. speakrdude

    speakrdude Well-Known Member

    Feb 21, 2009
    Northwest Arkansas
    2002 Sea Ray 340 DA
    Raymarine C80 Tri Data
    twin 6.2 MX MPI
    Very good point. I shall investigate further.
    Thanks
     
    iBoat Skipper Doug likes this.
  17. speakrdude

    speakrdude Well-Known Member

    Feb 21, 2009
    Northwest Arkansas
    2002 Sea Ray 340 DA
    Raymarine C80 Tri Data
    twin 6.2 MX MPI
    1AE8634A-13FA-457A-BA1E-EFCFFD19D121.jpeg I stand corrected (in my orthopedic shoes!)
    Upon further investigation, I found the water/fuel separators, way down on the strbd side of each engine, mounted below the electric fuel pump assembly! Funny thing is, I now remember replacing these a couple of years ago. Old age is hell....
     
    iBoat Skipper Doug likes this.
  18. iBoat Skipper Doug

    iBoat Skipper Doug Active Member

    123
    Aug 8, 2018
    Green Bay, Wisconsin, USA
    2003 225 Weekender w/Bravo III drive
    2019 Venture trailer
    5.7 MPI Mercruiser w/Bravo III drive
    It sure is :)

    Well done getting this thing sorted.
     
  19. speakrdude

    speakrdude Well-Known Member

    Feb 21, 2009
    Northwest Arkansas
    2002 Sea Ray 340 DA
    Raymarine C80 Tri Data
    twin 6.2 MX MPI
    Btw, if anyone needs any pointers on changing ZF 63 IV ATF fluid, I can help. Just did both of mine. Pretty simple.
     

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