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Oil Boiling When Drained ?


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#1 jpackard56 OFFLINE  

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Posted June 20, 2012 - 09:18 PM

O.K. it was over 92 today here and I'd been running about two hours mowing. figured on changing oil when finished. When I got past the shock of the plastic "gizmo" drain plug on Kohler Command 22 hp, the oil coming out was literally bubbling and boiling into my drain pan. Can this thing be running that hot? Oil didn't look real bad, just VERY hot.
This is a 25 hr service interval.
So disgusted with the whole thing, I came in to get some therapy on GTtalk...
Any ideas welcomed...

#2 MH81 ONLINE  

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Posted June 20, 2012 - 09:20 PM

How old is the tractor? I am wondering if you've got some mung under the covers and it's overheating.

If you haven't refilled it, might want to go synthetic, many members here swear their engines run cooler with the synth oil.
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#3 jpackard56 OFFLINE  

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Posted June 20, 2012 - 09:41 PM

That's the disgusting part, it is new!

#4 Cvans OFFLINE  

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Posted June 20, 2012 - 09:47 PM

It would be interesting to stick a meat thermometer in to your crankcase after it has mowed the lawn and see how hot the oil really is. If I remember right, standard mineral oil starts to break down around 250 degrees. If your oil is approaching that I would say an oil cooler is in order.
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#5 MH81 ONLINE  

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Posted June 20, 2012 - 09:52 PM

No way should a new engine be running that hot. I think it merits a call to the dealer and if they say it's normal, have them put that in writing. Then, when it blows up and they try to dodge it by saying you ran it out of oil evidenced by overheating damage, you can produce the paper and say it's been an ongoing issue that they ignored after proper notification.
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#6 Texas Deere and Horse OFFLINE  

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Posted June 20, 2012 - 10:09 PM

No way should a new engine be running that hot. I think it merits a call to the dealer and if they say it's normal, have them put that in writing. Then, when it blows up and they try to dodge it by saying you ran it out of oil evidenced by overheating damage, you can produce the paper and say it's been an ongoing issue that they ignored after proper notification.


I'm with Alan, get ahold of the dealer and see what he has to say. And get it in writing. Good Luck..
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#7 Toolpartzman OFFLINE  

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Posted June 21, 2012 - 05:17 AM

You didn't mention the make/brand etc. But the boiling issue needs to be fixed ASAP , before it eats itself. :flamethrower:
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#8 KennyP ONLINE  

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Posted June 21, 2012 - 05:32 AM

That can't be good on things. I'd see about getting something to see what temp it is getting to!
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#9 skyrydr2 ONLINE  

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Posted June 21, 2012 - 01:32 PM

It may have had air in it, oil, especially engine oil needs to be ripping hot to boil, that engine I would think, would be smoking and seized up.. temp it next time for sure!
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#10 olcowhand OFFLINE  

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Posted June 21, 2012 - 01:50 PM

If it is indeed boiling, then the oil pump will be picking up bubbles which will cause cavitation & decreased oil pumping.
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#11 cookiemonster OFFLINE  

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Posted June 21, 2012 - 02:00 PM

They may try to chalk it up to increased heat during break-in. I don't know about boiling hot, though. Hopefully, you have a good warranty on this? If nothing else, make some french fries while you're at it.
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#12 jpackard56 OFFLINE  

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Posted June 21, 2012 - 02:25 PM

They may try to chalk it up to increased heat during break-in. I don't know about boiling hot, though. Hopefully, you have a good warranty on this? If nothing else, make some french fries while you're at it.


Ya that is just what the oil sounded like in the drain pan, sizzling fries/chicken...
Here is the plan:
1) the plastic gizmo drain thingy is out, (warranty be da#$%@&) picking up steel nipple, 90 and plug when in town this afternoon.
2) ordered an oil cooler.
3) going to put regular oil back in just so I can move it till cooler arrives.
4) when cooler is here I'm going to borrow my brothers in-fared temp reader to see just how hot we are talking.
5) Install cooler, run with regular oil till next 25 hour service and check temp then.
6) go synthetic on the change after that and check temp again.
Have I missed anything?
Thanks for all the feedback guys.
Isn't it interesting that I've never had these kind of problems with 30,40,and 50 year old tractors?

#13 Cvans OFFLINE  

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Posted June 21, 2012 - 03:43 PM

It's also interesting that a brand new machine runs that hot and doesn't come with an oil cooler to begin with. You might want to do a web search and see if others are experiencing this type of problem.

#14 Toolpartzman OFFLINE  

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Posted June 21, 2012 - 04:36 PM

"......have I missed anything?"

YES-#1 on your list is the dealer-no cooler-no oil- do not pass go-don't collect $200 dealer. 2 more hours of that kind of abuse, and the Kohler is scrap !!! What is this mower anyway?

#15 Cvans OFFLINE  

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Posted June 21, 2012 - 06:40 PM

It appears from his post in another string that this would be a Cub Cadet. No model was stated though. See the following .

Plastic "gizmo" Drain Plug On 22hp Kohler Command ?






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