Kubota mower won't start when cold

Discussion in 'Mechanic and Repair' started by 123hotdog, Mar 21, 2013.

  1. 123hotdog

    123hotdog LawnSite Senior Member
    Posts: 481

    Battery is over 12

    Battery is over 10 under load

    Removed glow plugs, hooked them back to the harness and grounded them to the battery. They came on. Bright orange.

    Mower won't start using a portable jump start.

    It only does this the first thing in the mornin. If I heat the garage up to 60 degrees for a few hours. It doesn't do it.

    After it starts the first time of the day, its fine all day long.

    Fresh fuel and two new fuel filters. I'm stumped. Help?:cry::cry:
     
  2. ricky86

    ricky86 LawnSite Bronze Member
    Posts: 1,701

    Move to Mexico. Does it smoke when first starting it? Sure the glow plug circuit is working?
    Lower the viscosity of oil or just get a block heater till things warm. They have a nice one that goes
    into coolant. Will heat it hot to the touch in 45min. Goes in place of a freeze plug
     
  3. dstifel

    dstifel LawnSite Senior Member
    Posts: 899

    Don't have the ability to turn key backwards to warm glow plug?
     
  4. kawakx125

    kawakx125 LawnSite Bronze Member
    Posts: 1,120

    diesels are pretty cold blooded, your fuel isnt gelling up is it?
     
  5. 123hotdog

    123hotdog LawnSite Senior Member
    Posts: 481

    I wouldn't think so cause it happens when the outside temp is 40 degrees.
     
  6. dstifel

    dstifel LawnSite Senior Member
    Posts: 899

    40 degrees the coldest it gets or just the tempatures when you try to start it?
    Posted via Mobile Device
     
  7. 123hotdog

    123hotdog LawnSite Senior Member
    Posts: 481

    It has trouble starting around 40 and anything below that.
     
  8. dstifel

    dstifel LawnSite Senior Member
    Posts: 899

    Yes i guess maybe I missed it but is it sitting in the garage with tempatures in the twenties all night and then by the time you try to start it it's 40. If so I would say that is normal. Option to plug it in?
    Posted via Mobile Device
     
  9. larryinalabama

    larryinalabama LawnSite Fanatic
    Posts: 16,253

    You need some fuel additive
     
  10. Dually00-00

    Dually00-00 LawnSite Member
    Posts: 182

    Is the engine cranking and smoking out the exhaust while your trying to start it ? You should be able to start it at 40 degrees even with out good glow plugs, just may take a few more cranks.
     

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