Oil change capacity

[Pau7220]

This is an excellent reminder that cheap oil filters can contribute to problems. Cheap oil filters often use stiff, ineffective back-flow designs.

One more thing to keep in mind.... when this happens, it's oil from the dirty side of the element returning to the pan.

 

[Russell King]

The filter is a Kubota filter.

The tractor will sit without being started for a month or two when I noticed this.


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[North Idaho Wolfman]

The filter is a Kubota filter.

The tractor will sit without being started for a month or two when I noticed this.


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On kubota engines they have an anti drain back check ball in the system, but the older the engine the easier for that system to leak down.
So a quick run then let it settle for a min, they check oil to make sure it's up to level is a good choice.

 

[Russell King]

On kubota engines they have an anti drain back check ball in the system, but the older the engine the easier for that system to leak down.

So a quick run then let it settle for a min, they check oil to make sure it's up to level is a good choice.

Is that check ball system something that can be repaired? What would Kubota call it in the illustrated parts list?


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[North Idaho Wolfman]

Sadly probably not without extensive work, the seat is aluminum and prone to wear after a long time.


It's really not necessary to worry about, because the oil system moves oil to all points that could be harmed extremely fast, hence why you don't have a bearing issue.

 

[Russell King]

Thanks for the information


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[GeoHorn]

Wolf, … what label does that illustration give to identity that part you highlighted? (Are you certain that's an anti-drain-back? … or is that a pressure-relief instead?)