Detroit 671

Discussion in 'Diesel Engines' started by johnloucka, Feb 7, 2010.

  1. johnloucka
    Joined: Feb 2010
    Posts: 2
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: New Jersey

    johnloucka New Member

    I am looking at a 1990 38 topaz with twin D671 any input
     
  2. El Sea
    Joined: Aug 2006
    Posts: 55
    Likes: 1, Points: 0, Legacy Rep: 36
    Location: St Petersburg, Florida

    El Sea Junior Member

    Great engines!
     
  3. BTPost
    Joined: Dec 2009
    Posts: 47
    Likes: 5, Points: 0, Legacy Rep: 85
    Location: Excursion Inlet, Alaska

    BTPost Junior Member

    For the Hard of Hearing.... They don't call them "Scream'en Jimmys" for nothing....
     

  4. FAST FRED
    Joined: Oct 2002
    Posts: 4,519
    Likes: 109, Points: 63, Legacy Rep: 1009
    Location: Conn in summers , Ortona FL in winter , with big d

    FAST FRED Senior Member

    6-71 and other engines can eat so much fuel to be worn out.

    As a 1200rpm Gen set 30,000 hours is not uncommon .

    1800rpm . the daily fuel burn will higher and service life lower.

    In a boat that does not attempt to plane , service life is usually extreme.

    The fish killers tweak the units to run 450hp with a couple of turbos , 1000 Hours is considered good longevity.And at 60GPH it will eat almost as much fuel as the gensets in its life

    How the boat is run will determine the life.

    FF
     
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