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John Deere oil bath air cleaner leak

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TheBartman47

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It's not over-filled, but it constantly leaks just enough to get oil all over the cup an a bit up the sides of the canister. The ring clamp is tight and I've made sure there was no debris in the way where the cup seats with the canister. Any ideas on how to stop this from leaking?
JDairfilterleak.jpg
 
Common thing to be damp in that area.

You could try a 1/16 or so diameter O-ring installed up onto the housing before the cup and see if that works for you.
 
TheBartman47 said:
That's quite a large diameter for an O-ring, but I'll see if I can find such a size.
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Hydraulic shop should be able to make one for that.

Edit to add that you can buy an O-ring splicing kit to make O-rings many places. I have had a kit for years. They work ok for static O-rings, generally they are not recommended for dynamic O-rings. I have made 20-foot diameter O-rings with 3/4" O-ring stock for hydro turbine casing joints, as well as more common sizes for housings on equipment a used red MN mentions in his post below.
 
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TheBartman47 said:
That's quite a large diameter for an O-ring,
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Not really, orings can be utilized to seal rear axle housing to the main center case and can be a foot or more in diameter and that isn’t even taken into account uses for orings in very large industrial equipment like bulldozers and earth movers.
Edit to add: Per the water pump that appears to be a 2 cyl. model. The intake pulses for those engines are quite enormous compared to a unit that utilizes more cylinders. To me it is no surprise that the movement of the oil in there would cause this.
 
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used red MN said:
Not really, orings can be utilized to seal rear axle housing to the main center case and can be a foot or more in diameter and that isn’t even taken into account uses for orings in very large industrial equipment like bulldozers and earth movers.
Edit to add: Per the water pump that appears to be a 2 cyl. model. The intake pulses for those engines are quite enormous compared to a unit that utilizes more cylinders. To me it is no surprise that the movement of the oil in there would cause this.
Click to expand...
Yes, it's a 2 cylinder... 730 propane.
 
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