Cold running Kubota

[Stomper]

That Mau be true, but it is still on the "cool side" of normal. One would think and most motorized pieces of equipment (cars, trucks, tractors) get a little warmer than that. That almost indicates a thermostat stuck open or op didn't allow it to warm up good and or didn't operate the tractor long enough to warm it up good.

As far as not letting it warm up good goes, the tractor is stored in my heated shop (+15c) and I always let it warm up 10-15 minutes before use, even in the summer time. I was out plowing snow in the yard off and on for two hours so I would think it had plenty of time to warm up. I may have just looked at the temp gauge at the right time when the engine was cooling down, just before I put it back in the shop. I will keep a close eye on it and see what it does next time I plow snow.
Thanks for all the replies guys

 

[Phillip w]

I think you are forgetting these small tractors have fans which runs continuously and there isnt a DPF or other emissions aids creating hotter exhaust to burn the soot, so the exhaust temp are very low. Cars and trucks have Clutched fans and electric fans. Here in the frozen north when its cold out (around single digits F) and the thermostat opens I can actually watch the temp gauge drop because much colder coolant from the radiator is entering the engine. Its even more evident on my Ram w/cummins and its digital temp gauge.

My allis has a big 6 cylinder diesel with a coolant capacity exceeding 4 gallons. The engine is exposed on both side. The fan run continuously. It was made in the 1970's. You got a large brass radiator and no emissions. You got to let it warm up. My 1973 Ford pick-up haste a 390. It has a big brass radiator and the fan turns continuously. It take awhile to warm up, but will warm up unless the thermostat is stuck open. I'm not forgetting much.

 

[Phillip w]

As far as not letting it warm up good goes, the tractor is stored in my heated shop (+15c) and I always let it warm up 10-15 minutes before use, even in the summer time. I was out plowing snow in the yard off and on for two hours so I would think it had plenty of time to warm up. I may have just looked at the temp gauge at the right time when the engine was cooling down, just before I put it back in the shop. I will keep a close eye on it and see what it does next time I plow snow.
Thanks for all the replies guys

I think I'd let it warm up real good in your shop and see how it does. If you still have trouble, you really might consider a thermostat. They are relatively in expensive and pretty simple to install. My old ford pickup had to put a thermostat in it. It wouldn't warm up right. New thermostat fixed the problem.

 

[Travelover]

I added a coolant operated cab heater to my ole B7100, which had no thermostat or water pump. I found that unless I blocked the radiator, I couldn't get any heat in the winter. The little engine just didn't put out that much heat.