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  1. #1

    Angry Damaged 1984 Johnson Powerhead 70HP..Help

    Hi All,

    My Johnson powerhead took a cramp this weekend. Piston rod retainer (loose bolts ) broke and bust a whole ( quater size ) in the Exhaust side. So my question is, can it be fix ( welded ) is it work it getting it fix or do i have to cough up and buy a rebuilt powerhead or bare head. Pistons, rods, cylinders looks fine. Any advice is greatly appreciated. Thanks

  2. #2
    Rear Admiral rolmops's Avatar
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    Feb 2002
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    Default Re: Damaged 1984 Johnson Powerhead 70HP..Help

    Cough up the money.It is hard to find a welder who is good enough to reseal a block.
    Make sure the plug is in

  3. #3
    Petty Officer 2nd Class sankanother1's Avatar
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    Jul 2007
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    Default Re: Damaged 1984 Johnson Powerhead 70HP..Help

    I have two words for you...E bay...
    It's good to learn form others mistakes but I seem to beat them to it.

  4. #4

    Default Re: Damaged 1984 Johnson Powerhead 70HP..Help

    Thanks..Looked on ebay and found one but it's a 1979 block. Will this fit on the 1984. What other year block with fit my motor? Thanks for any information.

  5. #5
    Supreme Mariner
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    Feb 2001
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    Port Charlotte FL but never the same since hurricane Charlie
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    16,977

    Default Re: Damaged 1984 Johnson Powerhead 70HP..Help

    As for the complete powerhead, all 3 cyl 49 cid powerheads are the same from 1976 to 1985. Just don't try to use a 56 cid 3 cylinder. Don't overlook a complete motor. Depending on the boat a good used 3 cyl or even a decent V4 may be a viable alternative.

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