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    loud thud coming from transom area inside the engine cavity

    Hello iboats, i’ve Posted once before on here and had great success with help. I recently pulled the lower unit seals and now that I’ve put the lower unit back on and buttoned it up and now it has a loud deep knock not from the motor but where the transom meets the motor. It’s got a rhythm and...
  2. I

    All spanner nut teeth broken

    I have a 1994 mercruiser 4.3 liter and I’m replacing the seals on the lower unit however when I took the unit off the spinner but is missing all of the teeth so the spinner but wrench won’t work. Does anyone have any ideas to remove this without damaging the housing?
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