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Kubota RTV 900 with Curtis Cab
Hi I recently purchased a 2006 RTV 900 with a Curtis hard shell cab, the issue is heat in general, the factory temp guage never moves ( yes it works)// engines seems never to warm up, the thermostat is factory and does work as well it opens at 180 as I tested it. We live in Pocono Mountains and having heat from the add-on blower would be a plus. I also have cardboard sleeve totally blocking off the radiator,that doesn't help.It has an electric fan- obviosly it never kicks on.The only time I ever saw the temp guage move and heat come out was driving in about 12" heavy wet snow where the machine had to really work to get across the fields, needle went up to the 1 o'clock position, just boardering the hot side- but thats only under extreme load running for awhile.:::--Any thoughts?
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Kubota RTV 900 with Curtis Cab
I like your thinking,,, I bought my RTV used, but it only had 117 hours on it, now about 200 as I use it everyday! The former owner installed a 1000w inverter , unfortunately it can't handle even the smallest 12v space heater. I really don't feel like spending several hundred dollars for a powerful inverter, I have a "big Buddy" small propane heater on the floor, but space is an issue.Bottom line is I just perfer to use the engine heat, unfortunately their is none!
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Kubota RTV 900 with Curtis Cab
Good Idea, not really an option here though. The RTV actual runs the coolant back through the filter base of the HST to help cool in summer / warm in winter, that leads me to believe the HST is no warmer than the coolant.
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Kubota RTV 900 with Curtis Cab
Hi I am having a hard time understanding what you are trying to bring across, I am not losing any heat, the engine doesn't build any, not even enough to open the thermostat.
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Kubota RTV 900 with Curtis Cab
Joel, thanks for input, EVERYTHING you mentioned has been done. I took the thermostat out first and put it on the stove in H2O to make sure operation, yes it works, valve that was added to heating system coolant works fine, no blockage, lastly I blocked off the radiator with card board.
I think alot of people responding aren't graping what I am bringing across, the engine doesn't even get hot enough to make the temp guage move, yes it works as well. the radiator has an electric fan and you can be sure that hasn't kick in. The only time it ever got hot was when I was working it very, very hard driving through 12" heavy wet snow where the temp needle went to the 1 o'clock position just to the break in the line between normal & hot. and that was because I had the cardboard across the radiator. At that time I knew it was capable of getting warm and the heating system did work wunderfully. It seems that under normal driving around conditions the engine doesn't get hot at all.
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Kubota RTV 900 with Curtis Cab
Joel, I will check the cap though. I had a similar situation on my grandfathers car years ago. No one could figure it out, and all it was , was a faulty cap.
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Kubota RTV 900 with Curtis Cab
Hey you know you are probably hitting the nail on the head! It is fairly cold up here in the Northeast PA mountains, today now is 7 degrees , I do keep the RTV in the garage where it is down to 33 degrees, running the kid up to the bus stop the RTV struggles to get up my steep driveway, it's got to be in the hydraulic's. There is a coolant line going from the block to the filter base of the hydraulics, what would you suggest I do? Put a on/ off ball valve in that coolant line to manually control the collant getting back to hydraulics?
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Kubota RTV 900 with Curtis Cab
Joel, good idea on the lower hose valve, but once again the thermostat is not openning, so coolant is not even making it to the radiator via the top hose, in essence the thermostat is a valve and since it is closed putting another valve on really wouldn't help yet. TRhe Cap is a cheap start you are right, It still come down to the engine never warms up, thusly something is cooling it down, I'm really thinking the HST isn't getting warmed up and that is chilling the system. I am going to throw a new cap on, and put a ball valve inline to the HST to manually regulate coolant flow, I'll get back and post a response to see if that does the trick . I am pretty sure we are on the right track now thanks everyone for your input!
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Kubota RTV 900 with Curtis Cab
I like your thinking. Now that you put it that way I understand what you meant. I even thought about "disconecting" the radiator and using the heater core as the radiator, your idea would be better to accomplish same as it would be no-mess just flip a lever. Lots of different good ideas to ponder. And you are probably right the thermostat is openning , but ever so slight.
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Kubota RTV 900 with Curtis Cab
Murph, what your thinking on why the coolant flows through the HST? to help warm it in the winter or cool it in the summer? Mostlikely the answer is both
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Kubota RTV 900 with Curtis Cab
Joel. Although I had checked all the lines for kinks from the bottom up, it appears I found a kink today that you could not see by eye. The heater core box has the inlet // output ports sticking out the top straight up, the coolant lines come from the underbelly of machine, rather than putting a 90 degree eldbow in the dealer just clamped the hose on creating a kink, thusly almost totally cutting off flow. I rerouted and all is good! Temp guage still doesn't move, but i have hot heat in cab.
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