MX5800 coolant level

   / MX5800 coolant level #1  

coolbrze

Gold Member
Joined
Sep 23, 2003
Messages
256
Location
VA
Tractor
Kubota MX5800
Popped the hood on my MX5800 to blow out air filters & radiator screen & saw the the coolant was just below the LOW mark on the little opaque overflow bottle. Is that normal for a cold engine (hadn't ran in days)? If not, do I just add coolant to the radiator when it's cold?
 
   / MX5800 coolant level #2  
Is that 'overflow bottle' pressurized? Have a radiator cap on it (like VWs used to) ? or is it really just an overflow and recovery bottle? Probably the latter. I'd look in to the (cool) radiator under the pressure cap. If the liquid is covering the cores well just put the cap back on tight and add some to your overflow tank. The coolant level in the overflow tank is of less interest than that in the pressurized radiator.
 
   / MX5800 coolant level #3  
As above by JWR,radiator should be full when cold and cap is removed.
If it is full and tank is a little low,most likely some evaporation loss has occurred.
Just add distilled water to the tank,to the full mark,and your concentration should be just right!
Good Luck!
 
   / MX5800 coolant level #4  
I usually keep my overflow reservoir around half full when cold. That way it has room for expansion but does not allow it to run dry when cooling down.

Just my 2 cents.
 
   / MX5800 coolant level
  • Thread Starter
#5  
Thanks guys, here's a pic of what I'm talking about, should have posted it to begin with. So add coolant to this so it's 1/2 way btwn the low & full marks or add some to the radiator itself?
radiator overflow.jpg
 
   / MX5800 coolant level #6  
Fill the overflow tank to the max line and check the radiator as well.

Never rely solely on that overflow tank. Always check the radiator as well, with cold engine of course.
 

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