DIY Network

All Projects

TV Projects

    What Do You Want To Work On?

      What Activity Do You Want To Do?

        0

        Available Projects

        Get Results

        DIY Network /

        Message Boards

            DIY Message Boards  Hop To Forum Categories  Archive  Hop To Forums  Boating    motor shaft length
        Go
        New
        Find
        Notify
        Tools
        Reply
          
        motor shaft length Sign In/Join 
        posted
        Is it okay to put a 20" shaft on a boat that now has a 17" shaft motor.?
        What reaction will happen.?
         
        Posts: 907 | Registered: Jan 29, 2010Reply With QuoteReport This Post
        posted Hide Post
        Okay..
        After some research..
        I found that instead of changing the shaft or riding as is, I can install what is called a jack plate extension.
        I will let everyone know how that works out.


        ......

        This message has been edited. Last edited by: ron45,
         
        Posts: 907 | Registered: Jan 29, 2010Reply With QuoteReport This Post
        posted Hide Post
        beats replacing the lower unit pricewise if it works.


        sig: if this is a new economy, how come they still want my old-fashioned money?
         
        Posts: 5849 | Location: North Burbs, MN | Registered: Mar 14, 2007Reply With QuoteReport This Post
        Picture of Jaybee
        posted Hide Post
        The transom extension is the best way to go. Using a motor that has a 3" longer shaft will not hurt anything - other than the boat will draw more water and will likely loose just a little bit of top speed due to the extra drag of having more foot in the water.

        OTOH, if you put in a motor with too short a shaft, you will get cavitation at both low speeds and when on plane. Neither is good.


        Jaybee
         
        Posts: 10475 | Location: Knoxville, Tennessee | Registered: Sep 27, 2003Reply With QuoteReport This Post
        posted Hide Post
        Don't have any updates at this time..
        As I was searching for better ways to set up the boat, I came across this video. If this is true it's well???????

        http://www.youtube.com/watch?v=iKL11BavG0U


        ....
         
        Posts: 907 | Registered: Jan 29, 2010Reply With QuoteReport This Post
        Picture of Jaybee
        posted Hide Post
        I'd bet that that's one guy who looks at every day with a sunrise as a gift.


        Jaybee
         
        Posts: 10475 | Location: Knoxville, Tennessee | Registered: Sep 27, 2003Reply With QuoteReport This Post
        posted Hide Post
        Don't have any updates at this time..
        As I was searching for better ways to set up the boat, I came across this video. If this is true it's well???????

        http://www.youtube.com/watch?v=iKL11BavG0U


        ....
         
        Posts: 907 | Registered: Jan 29, 2010Reply With QuoteReport This Post
          Powered by Social Strata  
         

            DIY Message Boards  Hop To Forum Categories  Archive  Hop To Forums  Boating    motor shaft length

        © Scripps Networks 2009

        Advertisement

        Posting Guidelines

        • Please be sure posts are category appropriate.
        • No off-topic or off-color postings.
        • Postings may be deleted at the discretion of DIY moderators.
        • No advertising is allowed.
        • Be nice. No name calling, personal attacks or flaming.
        • Certain words will trigger moderation of the post. These words mostly cover political or religious topics, which are OFF the topics covered by DIY.

        Full Guidelines

        For general message board help, click the tab labeled "Tools," and choose "Help" from the dropdown menu.