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1977 Johnson 55 Powerhead Removal

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  • 1977 Johnson 55 Powerhead Removal

    Having trouble removing the powerhead on a 1977 55 HP Johnson It appears I have gotten all of the necessary bolts removed. I was able to get the powerhead to lift up about a 1/2", maybe a bit more from from the midsection, but I can't seem to get it completely apart. Am I missing something here?

  • #2
    Re: 1977 Johnson 55 Powerhead Removal

    Did you disconnect the shift linkage under the lower carb ??

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    • #3
      Re: 1977 Johnson 55 Powerhead Removal

      yes I did, I already removed the lower unit completely. seems strange that I was able to get as much space as I have between the powerhead and midsection without it coming completely apart. I can't see anything that seems to be holding it up

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      • #4
        Re: 1977 Johnson 55 Powerhead Removal

        Try driving a couple of wooden wedges in the gap once and see what happens. Also shake the heck out of it.

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        • #5
          Re: 1977 Johnson 55 Powerhead Removal

          You got the one studded nut from the rear, under the cylinder head?
          [IMG2=JSON]{"data-align":"none","data-size":"full","src":"https:\/\/forums.iboats.com\/filedata\/fetch?id=9974593&d=1435747884&type=full"**[/IMG2]

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          • #6
            Re: 1977 Johnson 55 Powerhead Removal

            If he hasn't got that nut removed, how did he get it raised up from the exhaust housing 1/2 " ??

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            • #7
              Re: 1977 Johnson 55 Powerhead Removal

              I came across one once on a triple that had the casting busted around the nut due to trying to force it off... Stud was bent, too.
              [IMG2=JSON]{"data-align":"none","data-size":"full","src":"https:\/\/forums.iboats.com\/filedata\/fetch?id=9974593&d=1435747884&type=full"**[/IMG2]

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              • #8
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                Re: 1977 Johnson 55 Powerhead Removal

                Got it. It was the one nut under the cylinder head. I head been separating from between the spacer plate and midsection rather than from between the block and spacer plate. Thanks

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