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  1. #1
    Member
    Join Date
    Jun 2010
    Posts
    31
    Location
    Southern Ontario, Canada
    Tractor
    CC Z Force 48

    Default Electrical Gremlin

    Gentlemen,

    Z Force 48 with a 26 HP B&G engine has needed to be jump started for the last three weeks or so. Today I tried to get to the bottom of the issue.

    The engine cranks weakly for 4 or 5 seconds, doesn't start, and then the selonoid starts to click, and then nothing.

    Jumping with another battery, the rig has no hesitation and fires right up. The on board battery shows 12.46 volts, or about an 80% charge. I get 12.46 volts from the battery negative terminal to the selonoid, and from any ground on the engine to the positive terminal on the battery.

    When starting to crank the engine with the on board battery I get 5.9 volts that drops off rapidly from the starter side of the selonoid to ground, with the same readings between the starter and ground.

    I'm thinking that the selonoid needs replacing as all cables and terminals were disconnected, cleaned and reattached with no change in the starting sequence.

    Can anyone verify, or am I missing something?

  2. #2
    Platinum Member OldMachinist's Avatar
    Join Date
    May 2006
    Posts
    617
    Location
    Southwest Illinois

    Default Re: Electrical Gremlin

    Sounds like a bad battery. How old is the battery? You can take it to a auto parts store and have it tested.
    2006 Cub Cadet Z-Force50
    2000 John Deere LX178
    1974 SearsGT18 with 3 point,48"deck,Haban sickle mower and front dozer blade

    2000 Bobcat 453F with steel tracks
    1954 Ford860 with front end loader, 5' brushhog
    1952 Allis Chalmers CA with Woods L59 mower
    1947 Case SC
    1998 Honda ACTY 4WD mini truck
    And too many other small engine tools to list

  3. #3
    Super Member grsthegreat's Avatar
    Join Date
    Jan 2011
    Posts
    6,362
    Location
    north idaho
    Tractor
    dk45se hst cab

    Default Re: Electrical Gremlin

    yup.. i agree. bad battery. if the voltage drops like that, that would be my bet. Just had the same issue with my work van. it was a 5 yo battery with a 96 month warranty. but bad just the same
    currently own
    2011 Kioti DK45SE HST CAB tractor/loader, Jimna 6" - 3 point wood chipper, 60" JD Brush Hog, JD 60" Rototiller, 3 point post hole digger with hydraulic assist, 3 point spring tooth rake, Fimco 55 gallon weed sprayer with 12 foot boom, 3 point hydraulic wood splitter (home built)
    Quick Attach 79" loader mount snowblower & rear powerpack
    Quick Attach 84" Snow Blade
    Quick Attach 42" pallet forks

  4. #4
    Elite Member Mace Canute's Avatar
    Join Date
    Nov 2006
    Posts
    4,201
    Location
    Saskatoon, Saskatchewan

    Default Re: Electrical Gremlin

    When you used the second battery to start it, did you bypass the solenoid? Did you bypass the solenoid using the original battery? If you didn't either time, what makes you think it's the solenoid?

  5. #5
    Member
    Join Date
    Jun 2010
    Posts
    31
    Location
    Southern Ontario, Canada
    Tractor
    CC Z Force 48

    Default Re: Electrical Gremlin

    Guys,
    I think I've tracked down the problem. The battery was not getting fully charged.

    I started a second check of all terminals in the starting circuit and discovered a plastic zip tie partially sandwiched in between the battery negative post and the cable end. The original owner, or the factory, put the tie around the terminal to hold the pressure switch wiring to the seat bottom from getting crushed under the seat corner.

    I really don't know how I missed it the first time around (old timer's disease?).

    Regardless, an overnight trickle charge and the tractor almost couldn't wait to get started today. It bears watching to ensure that the battery is being properly charged, but I'm almost certain I've found the problem.

    Thanks all for your help!

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