1. Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!
  2. ALL NEW MEMBERS READ THIS FIRST!! Thank you for joining Heavy Equipment Forums! If you are new to forums we communicate with "Threads", please search our threads to see if your topic may have already been answered and if not then click "Post New Thread" in the appropriate forum. This will allow all of our members to see your question and give you the best chance to be answered. After you've made a number of posts you will graduate to Full Member status where you'll see a few more privileges. Following these guidelines will help make this the best resource for heavy equipment on the net. Thanks for joining us and I hope you enjoy your stay!!

case 580ck 188d thermostat

Discussion in 'Tractor/Loader/Backhoes' started by jerry D enright, Mar 20, 2020.

  1. jerry D enright

    jerry D enright Well-Known Member

    Joined:
    Jul 5, 2019
    Messages:
    45
    Location:
    glen spey, NY
    I noticed on the case parts order from they show thermostats for the case 580ck 188 diesel, g11065 177-182 degrees and a57641 180 degrees. It didn't say if it was for a diesel or not so my question is which thermostat does the unit take.
    After I removed the thermostat and put it into a pan of hot water my thermostat didn't open til 190 degree. The reason I asked is because the radiator constantly overflows and the new coolant sending unit / temperature gauges are not working.
    thanks Jerry
     
  2. Tinkerer

    Tinkerer Senior Member

    Joined:
    May 21, 2009
    Messages:
    5,718
    Location:
    On A Riverbank in IL. USA
    The parts book specifies A57641 - 180° You are good with a 190° if the cooling system is in good condition.
    Are you overfilling the radiator ? There has to be room for the coolant to expand when it gets hot.
    Is your temp gauge wired correctly and is are the two components a matched pair. What I mean is that a new sending should not be hooked to an old gauge.
    Other than that they are not getting the required 12 volts to power them up.
     
  3. Tinkerer

    Tinkerer Senior Member

    Joined:
    May 21, 2009
    Messages:
    5,718
    Location:
    On A Riverbank in IL. USA
    Try unhooking the wire from the sender and touching it to a clean ground. With the key on, the gauge should go from cold to hot. If it does, that proves the wiring is ok and the gauge at least will operate
     
    TSemenuk and Coy Lancaster like this.
  4. TSemenuk

    TSemenuk Well-Known Member

    Joined:
    Nov 14, 2019
    Messages:
    69
    Location:
    Lakeside, Ontario
    Do you have a good rad cap? Many look the same but aren’t long enough to seal to the throat of the rad or the spring is too weak to prevent leaking under pressure.
    My rad has an overflow spigot but no collection bottle. I might install some tubing and a Budweiser catch can.
     
  5. Sea Sparrow

    Sea Sparrow Active Member

    Joined:
    Nov 11, 2020
    Messages:
    34
    Location:
    Pennsylvania
    Hi everyone,

    I just purchased a 1970 case 580ck and have begun going through everything that needs attention. On the top of my list is to install a new temperature sensor to replace the one that has a broken sensor on the end of the wire. It was a mechanical one and I would like to replace it with a mechanical one. The problem is that I cannot locate where it was attached, since I found it hanging free. Any help would be appreciated, thanks.
     
  6. TSemenuk

    TSemenuk Well-Known Member

    Joined:
    Nov 14, 2019
    Messages:
    69
    Location:
    Lakeside, Ontario
    Best to start your own thread Sea Sparrow.
     
  7. Willie B

    Willie B Senior Member

    Joined:
    Jan 3, 2016
    Messages:
    2,011
    Occupation:
    Electrician
    Location:
    Mount Tabor VT
    Radiators get nasty with age inside & out. Yours may not shed heat effectively.
    I have a local radiator shop, Roy takes VERY good care of me. Radiators routinely go off to him for a boil out.
    My latest purchase, a 29 year old John Deere 410C overheated first use. It got a very thorough hot water pressure washing outside, and a auto supply boil out chemical inside. It now cools properly.

    As for thermostats, they all keep you cool if they work. I'd choose a 210 degree thermo if I can get one. Keeping your engine quite warm when running drives away more moisture, resists sludge.