Coolant Leak - 2016 1120D

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Ohio_Pawpaw_Grower

Member
Noticed one of my most hated of all equipment smells last time I used the RTV - coolant. At first I wrote it off as being the overflow tube was not going straight down and routed through the core support like it was before. The next time I started it warm, I got a nice whiff of coolant. I waited till it cooled off, popped the hood and checked the reservoir was down about an inch. It never got hot or overheated - just appear to have a leak somewhere.

Nothing on the floor Dad always told me if you don't see a puddle on the floor, check every connection and the weep holes on the water pump. I checked as much as I could with the skid plates on.

As I searched the posting history here, it appears that radiator clamps have been known to back off and cause leaks. Many times you can't find the leak until you remove the skid plates. So I will remove them and investigate further this weekend to the extent I can. With only a little over 100 hours and 500 miles, hard to believe it could be the water pump. But I have seen far stranger things. Will advise.
 
coolant leaks are a real problem with the rtv. i remember back in 2014 when kubota started the new x model and an extra radiator in the front. the hoses became numerous and complex but the overheating issues are minimal now. with this came the hoses that seem to just weep coolant . some think that the hoses themselves have leeks between the ply and seep at the joints where the hose is cut. my 2014 x1100c has always used a little coolant and i can't seem to get it completely stopped. you can add a little stop leak and that will help but i still add about a cup of coolant every six months.
 
I had a leak on my brand new 1100. After first ride found coolant on the skid plate. Then looked like it was coming from the water pump, but it turned out to be just a loose hose clamp at the engine. It took a few times but I finally managed to see the stain from where it was leaking.
 
ItBmine said:
I had a leak on my brand new 1100. After first ride found coolant on the skid plate. Then looked like it was coming from the water pump, but it turned out to be just a loose hose clamp at the engine. It took a few times but I finally managed to see the stain from where it was leaking.
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I hada problem with a hydraulic leak on my tractor. I used hydraulic oil dye and a UV light to find the source. I see they make a coolant dye as well. If I had a coolant leak I couldn't find, I wouldn't hesitate to use the dye to find it.

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FTG-05 said:
I hada problem with a hydraulic leak on my tractor. I used hydraulic oil dye and a UV light to find the source. I see they make a coolant dye as well. If I had a coolant leak I couldn't find, I wouldn't hesitate to use the dye to find it.

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Excellent suggestion!!!

Thanks
 
With the help of my purdy Wife, I checked and tightened every connection on the cooling system that I could reach. I removed the radiator shroud and snugged the upper and lower connections. The upper needed about a half turn, the bottom only a quarter turn. We then removed the front skid plate and ran every inch of cooling system hose from front to back. Let me tell you, there is a bunch. There are a couple of places there the rubber line stubs into a steel pipe and then back again to rubber. Anyway, it was good to get a closer inspection of the RTV's innerds. My neck and shoulder are in pretty back shape but it had to be done. And could not have done it without my Wife fetching tools and helping me with the skid plate. After a good test drive, I no longer smell coolant. The real test will be when I cut grass. There are some steep places, trails through the woods and a big open field. I rarely exceed 3mph so the cooling system gets a workout. I never did find the water pump.
 
That's good. Hopefully that's all it was. That was one of the first things I discovered when I got mine home....how may rads and coolant lines in these things!!!

I wonder how hard they are to bleed when you do a coolant change?
 
ItBmine said:
That's good. Hopefully that's all it was. That was one of the first things I discovered when I got mine home....how may rads and coolant lines in these things!!!

I wonder how hard they are to bleed when you do a coolant change?
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There is a bleed-valve just behind the drivers-seat at the ROPS on my X900 which must be used or there certainly is strong possibility that an overheat will occur after changing coolant or working on the system.
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Yes, mine has the same on the back of the cab. I read the owners manual and it looks pretty easy. I thought there would have been more involved with all those rads.
 
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