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Hello tugbolt The reason for such a late reply is we just parked this thing to run the depreciation out on it. We are now in the process of scraping this thing. Just to let you know this unit has provisions for 4 occupants and it has never been operated with more than 2 occupants, has never...

Hi This will be my last post on this subject. I have contacted Kubota several time and they finally told me not to call back they do not support their equipment except thru a dealer. That was the last straw. This unit was purchased with the idea that we could use off road diesel fuel at a...

Hi I have a little more information. With the second fan installed and wired to the ignition switch so it runs all the time the switch is on. And a 4 mile run full throttle I now get a steady 215 degrees. Something else I tried was making the same run with the shift selector in the “M”...

Hi All of this has been complied with the system is holding pressure after a good warm up I cracked the filler not the radiator cap they are in different locations. I had to replace the filler pipe / cap assembly and the reservoir cap. If you haven't worked on the RTV1140CPX with the radiator...

Hi sheepfarmer Yes it has become apparent that no one here has or operates this model RTV. However I have contacted a very large Kubota dealer about 100 miles away and their service department ran the S/N and found out this is one of the machines with the radiator mounted on the driver side...

Bulldog I have had the radiator out and inspected and cleaned the outside remember the overheat that cracked the head in several places was caused by the radiator fins being plug. I have added a second fan on the outside of the radiator to increase the air flow. Russell King See above about...

85Hokie If you read my first post you should know what caused the overheat the first time. The machine is used in farm fields and cow pastures. The normal foliage includes plants that have a fuzzy ball or cylinder on them similar to a cattail. I had informed the genius of this and instructed...

Hi Now back to my original question. My Duramax operates at 210 degrees most of the time and 180 degrees in cold outside air temporaries. What is the normal operating temperature under load for this engine installed in this RTV? Phil P PS That triangular port is on your right. Sorry about...

Hi Here is a picture of a thermostat for a Cat C160. Note the triangle port to your left. This is the recirculation port. The thermostat is in the cold position. The coolant flows from the round hole in the bottom of the housing thru the recirculation port until the temperature reaches the...

Hi I installed new belt during the repair, the system has been flushed, the radiator shows the same inlet tem as the gage and has a 40 degree drop at the out let there are no coolant leaks and no hot spots on the engine. I am using a laser temperature probe and have check its accuracy with...

Hello all We have a Kubota RTV1140CPX S/N 18847 with the Kubota D1105-BJ engine. We purchased this unit used. I didn’t appear to have been abused and had 840 hrs on it. We noted from the start that under load after about 45 min of operation the engine temp was approaching 235 by the...

Hi Fortunately there isn’t much coolant loss when you remove the thermostat housing only about 1 qt. Phil P

Hi 2012 RTV1140CPX The front propeller shaft is loose on the front pinion spline. Is there a recommended fix? Phil P

Hi What fooled me was the fact that the unit would warm-up to 185 and not gets any hotter sitting and idling. Normally a bad thermostat causes them to over heat regardless of engine load. Well now that I have the thermostat out it still warms up to about 185 at idle and doesn’t get any hotter...

Hi New information. I just ran this unit in hard high gear for 4.5 miles. When I got back to the shop the temp was 240. I put the unit on the wash rack and wet the radiator with the water hose. The result was the engine tem came down about 10 degrees but the radiator remained cold to the...

Hi I finally had time to check this out further. The cap tube gage runs 240 when the unit has been run for about an hour under load. By my inferred thermometer the top and bottom of the radiator is running the same temp as the thermostat housing and the back of the head where the thermocouple...

Hi Yes I have checked the fan and the radiator for obstruction all that is good. I will check the temperature difference the next time I operated this unit and post the results here. Thanks for the suggestions. Phil P

Hi This is a 2012 RTV 1140 We were concerned that the electric gage was malfunction so I installed a cap tube gage at the thermostat housing. We find the electric gage was working correctly and the engine coolant temperature is actually getting up to 235 to 240 under a long run on soft...

Hello I have adapted a cap tube gage at the thermostat housing. It does work well. However it has proven the electric gage does work correctly so now my problem is this. When running hard in High gear the unit gets up to 230 degrees. I find this to be close to the inferred thermometer I...

Hi Does anyone have any ideas how to do this? Phil P