Warm up

[Harv]

<font color=blue>have not seen the temp gage go up off of the pin</font color=blue>

That may be normal for that model of tractor. In fact, a good number of tractors seem to exhibit that same behavior on their temperature guages. You might want to check out the old Kubota Temperature Readings thread from way back when.

If you like reading, there was also another thread called Warm up time? that you might find interesting. /w3tcompact/icons/smile.gif

Personally, I like feedback, so a guage that hardly moves between "ice cold" and "normal operating temperature" would drive me nuts. /w3tcompact/icons/crazy.gif

That's just me, though. /w3tcompact/icons/wink.gif

 

[Turfman]

That's an interesting statement which brings up another question. What is a proper cool down procedure?

 

[cp1969]

I'm not aware of any cool-down procedure for a non-turbo diesel. As far as I know, you treat them just like a gas engine. The famous 'cool-down' for turbo'd engines is so that the turbo gets a chance to cool off and not fry bearings, seals, oil, etc, as turbos get *really* hot under a load.

My L3000DT doesn't come off the peg, either. I'm not particularly thrilled with that either, as it suggests that either the temperature gage is completely inaccurate or that the cooling system is so oversized that the engine can't bring it up to a normal operation temperature. I hope it's the former, but that doesn't give me a good feeling. By the time it registers 'hot', the thing will probably be WAY hot.

 

[kerr]

About the same as warm up .Let er cool down at fast idle for about 1 or 2 min. or sil cools as well as lubes internal engine parts.Turbo's especialy need ta cool down a bit at lower R.P.M.'s before shutdown.

 

[Turfman]

Thanks for the information.

 

[skent]

What I noticed is the sending unit (on mine) is located in the back of the cylinder head (nearest the instrument panel) and the thermostat is located in the front of the engine, and thats what regulates outlet water temperature. The water typically circulates from the pump, into the block, up into the head and back to the thermostat, where if it is hot enough, it will open the thermostat. So by the time the water is passing the sensor, it is only halfway to the thermostat, so it has only picked up part of it's heat load.

Last summer I clamped a digital thermometer to the water outlet (thermostat housing) and noticed the outlet water was in fact close to 180 degrees after warm up, and when I covered the radiator (to simulate overheat condition) the thermostat temp sensor hit 205 when the dashboard temp gauge hit mid scale.

The gauge does indicate that your getting hot - usually a clogged radiator screen.

Steve