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  1. #1

    Join Date
    Aug 2012
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    17
    Location
    Oregon
    Mower
    briggs

    what are the gaps between coils and flywheels

    Hi i was wondering how i can properly gap the coil on a small engine
    Also if anyone has a chart thats Shows how far apart they should be on diffrent manufactures engines
    Thanks

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  3. #2
    066's Avatar
    Join Date
    Oct 2012
    Posts
    109
    Location
    new zealand
    Mower
    several

    Re: what are the gaps between coils and flywheels

    Hi, a good rule of thumb is to place a good business card on the magnet of the flywheel & rotate it till the coil aligns with the magnets then loosen the bolts holding the coil so the magnets pull in the coil, then tighten the bolts, turn the flywheel to remove the card. the gap should be .010 - .012 thou. hope this helps.

  4. #3

    Join Date
    Jul 2012
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    10
    Location
    Louisiana
    Mower
    Dixon

    Re: what are the gaps between coils and flywheels

    Piece of paper or card stock

  5. #4


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    Ric's Avatar
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    May 2010
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    Re: what are the gaps between coils and flywheels

    A one dollar bill works well.


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  6. #5

    Join Date
    Apr 2011
    Posts
    167
    Location
    Idaho
    Mower
    1995 MTD (Wards) 18HP Briggs Twin 46", 2002 Snapper 26" 6HP Robin, 2008 Cub Cadet 20" Kohler XT-7

    Re: what are the gaps between coils and flywheels

    I've always done it with a business card or a piece of paper folded over (2 layers). Stick it under the arm and rotate the flywheel until the magnet pulls the arm close, then tighten the bolts. Rotate the flywheel to remove the paper and now you have a nice tight gap.

  7. #6

    Join Date
    Dec 2011
    Posts
    170
    Location
    Minnesota
    Mower
    Snapper, Cub Cadet, Wheel Horse, Allis chalmers

    Re: what are the gaps between coils and flywheels

    i was lucky to find a .010 feeler gage 8" long in my brother-in-laws tool box, that he used for gapping the coil/flywheel gap

  8. #7

    Join Date
    Aug 2012
    Posts
    822
    Location
    California
    Mower
    TMW REPAIR & THE MUSICIANS WORKSHOP RECORDING STUDIO

    Re: what are the gaps between coils and flywheels

    Business card from the smallest engine to the largest

  9. #8

    Join Date
    Sep 2012
    Posts
    30
    Location
    Florida
    Mower
    Snapper 21500PC, Husqvarna 55R21HV

    Re: what are the gaps between coils and flywheels

    Business card works for me.

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