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I have a 1025R that is 3 1/2 years old. 140 hours. Nearly all that time there would be a quarter size drop of anti-freeze coolant on my floor in between uses. Of course I insured the level was perfect on the cold line in the tank, but it still dripped. I also tightened all hoses. No cracks/holes in the tank or the rubber drain line. This style tank had a snap on lid with the drain hose connected to the cap. Took it off and cleaned the tank, cap and hose. All to no use. It still drips. Not every day but within a week I would get this quarter size drop. Normally I would not worry about it too much except I have 2 cats that will die if they drink this stuff. Now, JD has come out with a new modified tank and cap.$75 for both. Fits right on in place of the old one. Filled it correctly also. It drips worse than the original. Looking at the end of the rubber hose you can see the green fluid ready to drip. This is directly over the front axle. to drop Now several quarter size drops after every use. This new one has the drain hose on the tank and not the cap. Deere shop manager and parts are both puzzled. When hot the level rises about one quarter inch in the new one and goes back down when cold. What is happening is this: when hot, the fluid expands as it should. Condensation happens and collects on the top of the container on the underside and this then flows out the rubber hose as it should. If the level is correct as it is, then the fluid should not overflow from the condensation. Has anybody experienced this and their solution please? Thanks to everyone that can help.
 

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This can be a tough problem to diagnose. It came up recently in a car forum I keep current with. I've not had this problem with my tractor (70 hours so far). I had a similar problem with my old car a few years back, and I lost a cat to it. It turned out to be a tiny manufacturing crack in the plastic overflow container, which I had replaced just a few weeks before. The sellers response was, "we have about a ten percent failure rate on those, send it back and we'll replace it." I thought about sending them the cat's body.

I assume that your tractor does not overheat, so you can pretty safely eliminate a bad radiator cap, sticky thermostat, and partly clogged radiator core. One culprit can be inadvertently switched overflow and radiator hoses at the overflow tank, but as these are markedly different sizes on the tractor, this isn't likely. Another is overfilling of the overflow tank, but you've eliminated that. That leaves a head gasket failure to be considered. A very small incipient head gasket leak can present itself with type of drip you are having. Has the dealer pressure tested the coolant system? Temporarily, to reduce the risk of animal toxicity problems, I'd consider rigging up some sort of catch container to the overflow tube. Another fix for the animals might be to switch coolant in the tractor to the newer animal-safer versions like Peak Sierra.
 
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I replaced my coolant container with the new/improved version. I still occasionally get a few drips of coolant when the engine has been running very hot (such as mowing for an hour non-stop).

One poster (sorry, can't remember name to give credit) said that he just put less in the reserve tank. I have not tried this.
 
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Several 1 series owners have reported this. Deere has a new tank and cap that Keane mentioned, but since you have a 1025 I would guess it already has that. I could be wrong though.

One member here made a baffle out of pvc pipe with holes in it that he installed in the tank, and that helped.
 

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Try pressure testing the rad cap. If it won't hold the correct pressure the engine can overheat. This in turn will blow coolant out of the overflow tube.
 
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Question

I've got a current year 1025 with 20 hours. I haven't noticed any stains on the garage floor, but I'll check to see if there is any on the front axle and report back.

Question: With the new cap, are you running it for a minute or so at low idle to cool down before you park it & shut it off?
 

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My 1025 does the same thing - after almost every use. I cannot locate the problem, nor could the service tech... Let us know if you figure something out!
 

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It splashes out around the cap and drips down tank. At least mine did as well as others here.
There's a bunch of posts somewhere of how we fixed it without getting a new tank.:think:
 

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Mine does this as well. I thought I overfilled the tank at first after I installed my coolant filter. the level has been right on for a while now. Not sure why it does it but curious as well.
 

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