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  1. #1
    NC Bass Club/Yamaha Motors Moderator BuzzB8's Avatar
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    Method To Measuring The Prop To Pad (with pictures)

    From top to bottom.

    1. Leveling the boat using a level on the pad.
    2. Measuring the distance from the pad to a level concrete floor.
    3. Leveling the engine. (Use the trim button and move the engine, not the boat)
    4. Measuring the distance from the center of the prop shaft to the floor. Now just subtract the prop shaft measurement from the pad measurement. For my set-up, the prop is 2.75" below the pad.
    5. This picture shows that on my boat, I can still raise the engine .75" on the jackplate by removing the mounting bolts and raising the engine on the plate.











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    #2

    Re: Method To Measuring The Prop To Pad (BuzzB8)

    Thanks Buzz, thats the best illustration I've seen for measuring the prop to pad.

    Kbass Rengade 19



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    #3

    Re: Method To Measuring The Prop To Pad (BuzzB8)

    does the pad on the boat have to be level. and also should the prop and pad be the same measurement to get the best performce


    2008 294 STRATOS / 200 OPTIMAX

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    #4

    Re: Method To Measuring The Prop To Pad (BuzzB8)

    Thanks Buzz.



  6. NC Bass Club/Yamaha Motors Moderator BuzzB8's Avatar
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    #5

    Re: Method To Measuring The Prop To Pad (basscatcher10)

    Level concrete, level pad, and level engine will get you the most accurate measurement. Most modern setups will like to have the prop shaft a little below the pad. For the two props I run, my boat does better at 2.5" below the pad.

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    #6

    Re: Method To Measuring The Prop To Pad (BuzzB8)

    buzz that was my pappaws nickname thanks for the info


    2008 294 STRATOS / 200 OPTIMAX

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    #7

    Re: Method To Measuring The Prop To Pad (basscatcher10)

    just what i wanted to know thanks guys

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    #8

    Re: Method To Measuring The Prop To Pad (Bronzeback2002)

    great play by play on how to do it...thanks


    Modified by Dover at 7:44 AM 1/5/2007



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    #9

    Re: Method To Measuring The Prop To Pad (BuzzB8)

    He is talking about the center of the prop shaft below the pad of the boat. Just thought i would throw that in, very good job of going over that Buzz. Rodney

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    #10

    Re: Method To Measuring The Prop To Pad (RangerRodney)

    Saving...Great illustration!

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    #11

    Re: Method To Measuring The Prop To Pad (GA SX190)

    Great pics and explanation! Thanks.

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    #12

    Re: Method To Measuring The Prop To Pad (BuzzB8)

    I have a 285 Pro XL and and ETEC 150. How do I know what prop to pad measurement should be?

  14. NC Bass Club/Yamaha Motors Moderator BuzzB8's Avatar
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    #13

    Re: Method To Measuring The Prop To Pad (bigfin)

    No two boats, engines, and props will be exactly the same. It's widely accepted to start around 3.5" below the pad. Make a run and keep good notes on your RPM's, top speed, and water pressure. Put it on the trailer and raise the engine .25" and make another run. Make and compare notes between the two runs. If your speed is increasing, continue to raise the engine .25" at a time and test.

    When you get to where the RPM's are above the accepted max range, the water pressure is too low, or your speed isn't as high as the last run, lower it to the previous setting and lock it in. Basically, that's about all there is.

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    #14

    Re: Method To Measuring The Prop To Pad (BuzzB8)

    thanks man.

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    #15

    Re: Method To Measuring The Prop To Pad (BuzzB8)

    No two boats, engines, and props will be exactly the same. It's widely accepted to start around 3.5" below the pad. Make a run and keep good notes on your RPM's, top speed, and water pressure. Put it on the trailer and raise the engine .25" and make another run. Make and compare notes between the two runs. If your speed is increasing, continue to raise the engine .25" at a time and test.
    When you get to where the RPM's are above the accepted max range, the water pressure is too low, or your speed isn't as high as the last run, lower it to the previous setting and lock it in. Basically, that's about all there is.


    +1

  17. NC Bass Club/Yamaha Motors Moderator BuzzB8's Avatar
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    #16

    Re: Method To Measuring The Prop To Pad (hollywood82)

    <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hollywood82 &raquo;</TD></TR><TR><TD CLASS="quote">No two boats, engines, and props will be exactly the same. It's widely accepted to start around 3.5" below the pad. Make a run and keep good notes on your RPM's, top speed, and water pressure. Put it on the trailer and raise the engine .25" and make another run. Make and compare notes between the two runs. If your speed is increasing, continue to raise the engine .25" at a time and test.
    When you get to where the RPM's are above the accepted max range, the water pressure is too low, or your speed isn't as high as the last run, lower it to the previous setting and lock it in. Basically, that's about all there is.


    +1</TD></TR></TABLE>

    I thought this looked like something I had read on here before...duh!

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    #17

    Re: Method To Measuring The Prop To Pad (BuzzB8)

    You're measuring to the center of the shaft right?


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    #18

    Re: Method To Measuring The Prop To Pad (RangerRodney)

    Never mind I got it.


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  20. Member sclark's Avatar
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    #19

    Re: Method To Measuring The Prop To Pad (BuzzB8)

    Thanks - best explanation i've seen yet !



    Living the Dream !

  21. NC Bass Club/Yamaha Motors Moderator BuzzB8's Avatar
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    #20

    Re: Method To Measuring The Prop To Pad (sclark)

    Thanks. I think the pictures help explain what I was doing.

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