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83 K5 Jimmy charging issues

Discussion in 'Truck & Equipment Repair' started by mohawkmike82, Jan 22, 2008.

  1. mohawkmike82

    mohawkmike82 Junior Member
    Messages: 19

    Hey guys I got an 83 K Jimmy 350. sometimes while clearing lots the belt will suddenly start squealing and the voltmeter only reads about 12v. Then, it just stops squealing and charges fine. Belts not getting wet. New battery, This is the second alternater thats doing this. Its a standard duty napa alternater. brand new V belt. Good and tight. Any ideas what could cause this? By the way i use an old western cable plow if that means anything to you
     
  2. kashman

    kashman PlowSite.com Addict
    Messages: 1,070

    you got the wrong belt or your tension isnt right
     
  3. clark lawn

    clark lawn PlowSite.com Addict
    from NE ohio
    Messages: 1,233

    the belt might be getting wet.
     
  4. wild bill

    wild bill PlowSite.com Addict
    Messages: 1,239

    slippery

    some times on the old truck's you have to take the pulley's off and sand blast the belt mating surfaces ,if the belt is new and the regulator is working right.
     
  5. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    Will it only do it when actually operating the plow? If so, then the pump motor is more than likely dieing on you. See it happen quite often. It'll actually stall a newer electronic truck due to the voltage drop.
     
  6. mohawkmike82

    mohawkmike82 Junior Member
    Messages: 19

    Yes it is only when operating the plow. And its intermitent. Ocasionally i get a little arc from the hot wire on the motor when i move the plow in any direction
     
  7. SnoFarmer

    SnoFarmer PlowSite Fanatic
    from N,E. MN
    Messages: 8,574

    You can see an arc?
    Fix this first, it is a short.
     
  8. mohawkmike82

    mohawkmike82 Junior Member
    Messages: 19

    its gotta be a short inside the motor though. It comes directly from the hot wire where it mounts to the motor. Im gonna get a new motor. might as well replace the pump while im in there.
     
  9. SnoFarmer

    SnoFarmer PlowSite Fanatic
    from N,E. MN
    Messages: 8,574

    Then it would be arcing inside the motor.
    If it is inside the motor then new brushes or a new motor is called for.

    Why would you replace the pump?
    With the motor removed you can spin it by hand.
    Does it move freely or wobble?

    Electricity fallows the path of the least resistance.
    So if it is arcing on the outside check your connection.
     
    Last edited: Jan 23, 2008
  10. mohawkmike82

    mohawkmike82 Junior Member
    Messages: 19

    I figured since i was in there i would put a pump in it. Until i just saw the price of a pump. I dont have it apart yet so i dont know its condition, but the plow moves just fine so ill leave it alone. Ive checked, tightened, added brass washers to my connection and it still arcs
     
  11. SnoFarmer

    SnoFarmer PlowSite Fanatic
    from N,E. MN
    Messages: 8,574

    The pos connection should be insulated from the motor housing.
    brass conducts.

    The pos terminal may be bad.
    Any fixes?
    not sure?

    It may be easer to just replace the motor.
    i'M just trying to save you some $$ is all..

    Good luck.
    maybe someone else has some ideas for you?
     
  12. mohawkmike82

    mohawkmike82 Junior Member
    Messages: 19

    Thankyou I appreciate your input. Ill play with that connection a little more before i put a motor on it. Thanks again! Happy pushing!
     
  13. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    Don't waste your time with the pos connection on it...replace the motor. :nod:
     
  14. MickiRig1

    MickiRig1 PlowSite Veteran
    Messages: 3,617

    mohawkmike82
    You know about Millsupply over on Miles Rd near Randle Park Mall?
    They have great prices on parts.
    Millsupply.com
     
  15. mohawkmike82

    mohawkmike82 Junior Member
    Messages: 19

    Fixed!

    Thanks B&B! New motor fixed the prob! Blade moves quick, voltmeter only drops to 12V, belt no longer squeals, Just in time too. Got a system commin to Cleveland fiinally! Ill post a couple pics of my old Heap in the old trucks thread later toinight after work. Thanks again everyone! This site is a great tool. Happy pushing!:redbounce:redbounce
     
  16. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    Good deal and glad to hear your ready! :bluebounc