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  1. #1
    Member weedsnager's Avatar
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    changed optimax 115 impeller, prop will only spin in one direction now!

    i changed the impeller on my 115 optimax, i put everything back together, and i can only spin the prop to the right. it doesn't matter if i have it in forward, neutral, or reverse, it will only spin to the right, what did i do wrong?

  2. Obi Wan Kenobi db_db's Avatar
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    #2

    Re: changed optimax 115 impeller, prop will only spin ... (weedsnager)

    Do you hear it shifting gears when you engage it? Because it sounds like you might have not gotten the shifter rod connected with the coupling.

    "Give a man a fish and feed him for a day...teach a man to fish and, he'll lay out of work, miss dinner dates with the wife....and live happily ever after"

    "He, who dies with the most toys, wins"




  3. Member weedsnager's Avatar
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    #3

    Re: changed optimax 115 impeller, prop will only spin ... (db_db)

    when i take the lower unit off, i can't get the shift shaft to go into neutral. i can only get the prop to turn to the right, and it makes a clicking noise.

  4. Obi Wan Kenobi db_db's Avatar
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    #4

    Re: changed optimax 115 impeller, prop will only spin ... (weedsnager)

    Try turning the DRIVESHAFT with one hand while you try to shift the shifter to neutral. And make sure you turn the driveshaft clockwise (looking down from above the driveshaft).

    "Give a man a fish and feed him for a day...teach a man to fish and, he'll lay out of work, miss dinner dates with the wife....and live happily ever after"

    "He, who dies with the most toys, wins"




  5. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #5

    Re: changed optimax 115 impeller, prop will only spin ... (weedsnager)

    It's likely going to be easiest for you to place the CONTROL in NEUTRAL.
    REMOVE SPARK PLUG WIRES... AND TURN LANYARD TO "OFF" POSITION.

    Remove gearcase.

    Rotate the splined shift shaft, COUNTERCLOCKWISE until you feel a "click" (you will feel some spring tension here).

    Confirm that you're in NEUTRAL by spinning the prop (it should turn freely in BOTH directions).

    Reinstall the gearcase. You may need someone to rotate the flywheel CLOCKWISE to assist in aligning the driveshaft splines.

    Confirm shifting as follows:

    Neutral: Free spinning prop in both directions.
    Forward: Propeller locks when spun COUNTERCLOCKWISE
    Reverse: Propeller locks when spun CLOCKWISE

    Don't forget to reinstall plug wires and turn lanyard back on.




    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
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  6. Member weedsnager's Avatar
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    #6

    Re: changed optimax 115 impeller, prop will only spin ... (EuropeanAM)

    <table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by EuropeanAM &raquo;</td></tr><tr><td class="quote">

    Rotate the splined shift shaft, COUNTERCLOCKWISE until you feel a "click" (you will feel some spring tension here).


    </td></tr></table>

    this is what i can't do, no matter which way i turn the shift shaft, i can't get it to go into neutral......should i be able to turn it into neutral by hand or should i be putting a pair of vice grips on it?

  7. Member weedsnager's Avatar
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    #7
    i took the lower unit to my local dealer and the guy put his special tool on the shift shaft and had the thing in neutral in about 4 seconds!! brought it home and it went right in! thanks for all your help!

  8. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #8

    Re: (weedsnager)

    <table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by weedsnager &raquo;</td></tr><tr><td class="quote">i took the lower unit to my local dealer and the guy put his special tool on the shift shaft and had the thing in neutral in about 4 seconds!! brought it home and it went right in! thanks for all your help!</td></tr></table>

    That's the RIGHT way to do it. Good decision!

    Glad to hear you got it straightened out.




    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor

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