Please note this thread has been inactive for 90 days. For the best results, please start a new thread.
Results 1 to 2 of 2
  1. #1
    Cadet
    Join Date
    Jun 2009
    Posts
    7

    Smile how far below the bottom of the boat should the prop be

    I have a 4hp Johnson the center of the prop is about 12" below transom bottom. I would like o raise it how I determine the proper depth

  2. #2
    Lieutenant
    Join Date
    Jan 2005
    Location
    Naples, FL
    Posts
    1,422

    Default Re: how far below the bottom of the boat should the prop be

    The big flat plate (cavitation plate) above the prop should be equal to or slightly higher that the bottom of the boat.

Similar Threads

  1. hit prop on bottom
    By sikz3 in forum Prop Questions and Topics
    Replies: 6
    Last Post: August 4th, 2009, 02:12 PM
  2. hit bottom, chewed up prop
    By bubbster in forum Johnson & Evinrude Outboards
    Replies: 8
    Last Post: May 5th, 2009, 06:18 PM
  3. Prop pitch for flat bottom
    By Secretary of De-Marsh in forum Prop Questions and Topics
    Replies: 2
    Last Post: January 25th, 2006, 03:53 AM
  4. Hit bottom now prop doesn't turn over when in gear.
    By MeanWS6sp in forum Mercury & Mariner Outboards
    Replies: 6
    Last Post: July 16th, 2005, 08:47 AM
  5. PROP LOCATION NOT BELOW BOTTOM
    By nbru21 in forum Johnson & Evinrude Outboards
    Replies: 2
    Last Post: September 24th, 2001, 11:32 AM
  1. iboats Forum Directory - Over 100,000 forum posts organized by topic