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  1. #1

    Join Date
    Jul 2011
    Posts
    5
    Location
    Illinois
    Mower
    Craftsman

    Briggs and Stratton 24hp vtec 445677

    Changed heads as suggested after bending push rods.........It will start but no power.......I believe it is valve adjustment.

    What is the adjustment on the valves???

    Cannot find a repair manual

    Any other suggestions on what the problem might be???? if not valves

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  3. #2

    1,000 Post Club
    reddragon's Avatar
    Join Date
    Jun 2011
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    1,377
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    southern oregon
    Mower
    little this...little that

    Re: Briggs and Stratton 24hp vtec 445677

    was the cam damaged?

  4. #3
    Trcustoms719's Avatar
    Join Date
    May 2011
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    62
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    Bear
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    Too many!

    Re: Briggs and Stratton 24hp vtec 445677

    I think it's 0.004 to 0.006 inch on both valves.
    I set them at 0.005
    ------------------------------------------------------------------------------------------------
    A repair mans best tools are his hands and brain.

  5. #4

    Join Date
    Aug 2014
    Posts
    4
    Location
    Minnesota
    Mower
    John Deere

    Re: Briggs and Stratton 24hp vtec 445677

    I'm working on a Briggs 445677 in my shop that keeps bending push rods. I have cleaned the valve stems but have been told by Briggs tech that it could be that the valve guides have moved. I'm replacing the entire head tomorrow as the valve guides can't be fixed like in the old L-head engines.

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