what is the bobtail of engine?

Discussion in 'Propulsion' started by Hunterr, Apr 10, 2016.

  1. Hunterr
    Joined: Jun 2015
    Posts: 29
    Likes: 0, Points: 1, Legacy Rep: 10
    Location: Korea

    Hunterr Junior Member

    what is the bobtail of engine?
  2. Jamie Kennedy
    Joined: Jun 2015
    Posts: 541
    Likes: 10, Points: 0, Legacy Rep: 117
    Location: Saint John New Brunswick

    Jamie Kennedy Senior Member

    "This term generally refers to a complete new “turnkey” engine as required to complete a “drop-in” replacement project when the existing engine and all of the accessories are not in good condition." there is more concerning impact on EPA regulations etc.


    I am guessing that the origin of the terminology in marine use might have something to do with the engine being complete except for the transmission and driveshaft, particular to an inboard engine, to make it possible to drop into place. I think this technically makes it a bobtail motor vs bobtail engine but the two terms are probably interchangeable.
  3. JSL
    Joined: Nov 2012
    Posts: 811
    Likes: 64, Points: 28, Legacy Rep: 41
    Location: Delta BC

    JSL Senior Member

    complete engine minus the transmission.
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.