fresh water vs raw water cooling

Discussion in 'Gas Engines/Drives/Transmissions/Props' started by Chris-380, May 18, 2020.

  1. Brite Idea

    Brite Idea Active Member

    348
    Nov 5, 2011
    Long Island, New York
    2010 310 Sundancer
    270 Sundancer 2000
    twin 5.0 ECT Bravo III's
    twin 4.3 TBI Merecrusier Alpha Gen II counter rotating drives
    Most mechanics I've spoken to say a raw water cooled saltwater engine has a ten year life expectancy anything more is borrowed time. It still comes down to the owners expectations for the boat and how long he plans on keeping it?
     
  2. RVPilot

    RVPilot Member GOLD Sponsor

    61
    Sep 11, 2020
    Olympia WA - Puget Sound
    1999 270DA
    7.4 Merc MPI B3
    Hi Folks ... I am looking for a recommendation for a full fresh water cooling system for a 7.4 ... as there appears to be loads of options out there, what source / manufacturer seems to be the best quality and most trustworthy? Thanks ...
     
  3. HawkX66

    HawkX66 Well-Known Member

    Jul 27, 2020
    SE Virginia and NH
    "Tread Knot"
    1997 Sea Ray Sundancer 290DA

    2020 F350 6.7L
    454 L29 Carb w/ Bravo III
  4. RVPilot

    RVPilot Member GOLD Sponsor

    61
    Sep 11, 2020
    Olympia WA - Puget Sound
    1999 270DA
    7.4 Merc MPI B3
    Thanks Hawk! So, did you order through 1800runsnew or via aftermarket.monitorpro? runsnew shows a price of $1260 vs $1764 at monitor ... and, how was the curomer service, and did you send them photos of your engine before ordering?
     
  5. HawkX66

    HawkX66 Well-Known Member

    Jul 27, 2020
    SE Virginia and NH
    "Tread Knot"
    1997 Sea Ray Sundancer 290DA

    2020 F350 6.7L
    454 L29 Carb w/ Bravo III
    I ordered through ppt, but I don't like to reward bad service... $1,260 is a good price. I'd probably give them a chance. I don't think ppt is selling them anymore.
    I sent photos, but they claimed it wouldn't fit. I knew better so I bought it. No fitment issues and my bilge is tight.
     

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