L2250 coolant in oil sump

[kubotal2250]

I'm going to remove the hoses going to the cab heater and fix them another time. Do the ports on the supply and return of the cooling system have nipples in them that I can remove to plug them?

 

[Wull]

If you had coolant in the oil you would have clear signs of emulsification. As for the expansion bottle, the level will go up when the coolant system pressurises and the spring within the radiator cap moves bleeding off coolant to the expansion bottle, when the coolant cools down the vacuum draws the coolant back from the expansion bottle to the radiator.

So what you noticed with the expansion bottle was perfectly normal. The oil level and how it looks on the dipstick is perfectly fine.

As for the warning light it could be a faulty sensor and or something innocent.

Looking at the picture of the expansion bottle - is there even a sensor there? If not then are you sure it was a low coolant level light? Radiator full and bottle at min mark.

 

[kubotal2250]

Well I finally got some time to work on the tractor. I drained the oil and changed it and the filter. I saw in the WSM that the torque spec for the drain plug is 90 foot pounds is that correct? Or are they talking abou a different plug?
I drained all the coolant and cut out the cab heater hoses and put a bypass hose I got from the dealer in place . I can just use regular 50/50 green anti freeze correct?
I posted some pictures. The hoses were the ones from the cab heater and look to be the culprit of the coolant leak. I wasn't able to find a adapter for my stant pressure tester so wasnt able to test the radiator

 

[kubotafreak]

More likely inlbs. 90 inlbs = 7-8 ftlbs

 

[kubotal2250]

More likely inlbs. 90 inlbs = 7-8 ftlbs

This is the page right out of the WSM. Not sure if it's a typo or not

 

[RCW]

This is the page right out of the WSM. Not sure if it's a typo or not

Geez -, I just do “snug.” No way I’d do 90 ft. lbs.

Likely a steel oil pan, but that seems really tight to me.

 

[North Idaho Wolfman]

This is the page right out of the WSM. Not sure if it's a typo or not

Yes it's a typo!
Do not put 90 lbs on an aluminum threads unless you want to replace the pan.

 

[Runs With Scissors]

This is the page right out of the WSM. Not sure if it's a typo or not

Here is a pic of the proper tool to tighten your oil drain plug.

I think Messicks sells them.

Paul

 

[kubotal2250]

I just snugged it up. Thought it was a typo

 

[kubotal2250]

Got the rad filled and loader back on and had it running yesterday. I checked all connections for leaks and don't see any. I think I'm good to go. Just curious as I used 10 w 30 diesel engine oil from Kubota as per WSM but the dealer said that they see most people use 15w40? Did Kubota switch oil specs at some point?

 

[North Idaho Wolfman]

Got the rad filled and loader back on and had it running yesterday. I checked all connections for leaks and don't see any. I think I'm good to go. Just curious as I used 10 w 30 diesel engine oil from Kubota as per WSM but the dealer said that they see most people use 15w40? Did Kubota switch oil specs at some point?

No Kubota didn't change, the oil industry did.
5w40 and 15w40 became the 2 new standards for diesel oils.
Most 10w30 out now and not designed for diesel engines.
Read the label of the oil you got to make sure its diesel compatible.
If it is your good to go!

 

[Wull]

It’s based on temperature range, there is usually a chart showing the different viscosity’s that will work just fine based on the temperature range that the machine will be used.

They will have the oil viscosity that they recommend but others that will work perfectly fine if used within the temp range.

 

[kubotal2250]

Here is a pic of the oil I used from Kubota incase anyone needs 10w 30 diesel oil.