Hello Everyone

[BobRip]

The stock air deflector outlet area is smaller than the inlet area. By building the deflector higher the outlet area size is increased to be equal to the inlet area.

Thanks for the explanation.

 

[ToolcatWonka5610]

Hey guys, quick thing. I don't mean to beat a dead horse or anything lol, but do Deutz Diesels run hotter than a liquid cooled engine? I was running the Loader at skill center the other day and I noticed the temp gauge sitting at over half (toward the right) and then while using the bachkoe the next day doing the same work (its got a liquid cooled Perkins Diesel) I noticed the temp gauge on that was less half, about a quarter actually. I'm not knocking the Deutz I'm just curios. I love the one thats in the Loader, lots of power and starts right up everytime.

 

[KentT]

Hey guys, quick thing. I don't mean to beat a dead horse or anything lol, but do Deutz Diesels run hotter than a liquid cooled engine? I was running the Loader at skill center the other day and I noticed the temp gauge sitting at over half (toward the right) and then while using the bachkoe the next day doing the same work (its got a liquid cooled Perkins Diesel) I noticed the temp gauge on that was less half, about a quarter actually. I'm not knocking the Deutz I'm just curios. I love the one thats in the Loader, lots of power and starts right up everytime.

Most any air-cooled engine will run hotter than a liquid-cooled engine. But, they're also designed to handle the higher heat so that doesn't mean that in effects the longevity or dependability in any way...

The key to running an air-cooled engine is that you must operate it in an RPM range that allows the cooling fan system to move sufficient air to cool it. You can't run them at a low an RPM while working, like you can with with a water-cooled engine, or they'll overheat. Air-cooled engines are designed to run at 3/4 throttle or more...

 

[Johndeere3720]

Just found this thread and I am glad to see you back online. :thumbsup: Sounds like you get to work with some pretty cool machines. With the skid steers, you got it good. I have had to drive three different versions of controls before in a short time period and it gets you all turned around. Like the all hand electronic control then going over to hand/foot. Or hand/foot to case arm and wrist, it is confusing. I prefer the hand/foot because it feels more precise, especially on Bobcat skid steers. As you are in training to be a heavy equipment operator, i am working on becoming a Diesel mechanic. :thumbsup:

 

[Bob999]

Hey guys, quick thing. I don't mean to beat a dead horse or anything lol, but do Deutz Diesels run hotter than a liquid cooled engine? I was running the Loader at skill center the other day and I noticed the temp gauge sitting at over half (toward the right) and then while using the bachkoe the next day doing the same work (its got a liquid cooled Perkins Diesel) I noticed the temp gauge on that was less half, about a quarter actually. I'm not knocking the Deutz I'm just curios. I love the one thats in the Loader, lots of power and starts right up everytime.

Different temperature gages have different calibration so you need to compare actual temperatures -- not relative position of the needle on the temperature gage.

As has been discussed many times on this board the Duetz is OIL COOLED.

The Duetz on my 1845 typically runs about 205 F oil temperature. Many older diesels that are "water" cooled have a thermostat of 180 F or less and the coolant is at a lower temperature than my experience with the Duetz. On the other hand newer gas engines often have a 215 F thermostat and run with higher coolant temperatures than the Duetz.

In sum the design coolant operating temperature depends on the design of the system.

 

[Gravy]

Different temperature gages have different calibration so you need to compare actual temperatures -- not relative position of the needle on the temperature gage.

As has been discussed many times on this board the Duetz is OIL COOLED.

The Duetz on my 1845 typically runs about 205 F oil temperature. Many older diesels that are "water" cooled have a thermostat of 180 F or less and the coolant is at a lower temperature than my experience with the Duetz. On the other hand newer gas engines often have a 215 F thermostat and run with higher coolant temperatures than the Duetz.

In sum the design coolant operating temperature depends on the design of the system.

That's it right there: You have to understand the engineering parameters of both the engine and the instrumentation. "Too Hot" for a water cooled engine may be "Just Right" for an oil cooled engine. They are measuring temperatures of different materials in different locations under different conditions. Don't mix up the instruments between the two designs.


Is this fun, or what?!

 

[J_J]

Hey guys, quick thing. I don't mean to beat a dead horse or anything lol, but do Deutz Diesels run hotter than a liquid cooled engine? I was running the Loader at skill center the other day and I noticed the temp gauge sitting at over half (toward the right) and then while using the bachkoe the next day doing the same work (its got a liquid cooled Perkins Diesel) I noticed the temp gauge on that was less half, about a quarter actually. I'm not knocking the Deutz I'm just curios. I love the one thats in the Loader, lots of power and starts right up everytime.

Have you ever read the manuals for the different tractors or any machine you use? It should state quite well what the temp is supposed to be. Most of the temp gages have a normal, and hot range indication on the label of the gage.

 

[Clumber]

Have you ever read the manuals for the different tractors or any machine you use? It should state quite well what the temp is supposed to be. Most of the temp gauges have a normal, and hot range indication on the label of the gauge.

The manuals for the PT-425 and engine do not discuss safe temps -- also no temp indicators. I have been doing lots of brush cutting at full throttle -- the engine compartment gets very hot after 2 hours. The hydr oil cooler does not appear clogged (but I blow it out with compressed air now and then). I guess my question is: how do I tell if its too hot? To be safe I have been restricting my mowing time to 2 hours. Has anyone added temp probes and gauges?

 

[J_J]

The manuals for the PT-425 and engine do not discuss safe temps -- also no temp indicators. I have been doing lots of brush cutting at full throttle -- the engine compartment gets very hot after 2 hours. The hydr oil cooler does not appear clogged (but I blow it out with compressed air now and then). I guess my question is: how do I tell if its too hot? To be safe I have been restricting my mowing time to 2 hours. Has anyone added temp probes and gauges?

If you are talking about small engines, I agree. Most small engines are designed to run at max rpm for cooling, etc. Things that could cause engine heat include running at low rpm, lean carb setting, low oil. One could add a temp sensor to the oil dipstick . Some engines also have a low oil shutoff.

 

[Clumber]

If you are talking about small engines, I agree. Most small engines are designed to run at max rpm for cooling, etc. Things that could cause engine heat include running at low rpm, lean carb setting, low oil. One could add a temp sensor to the oil dipstick . Some engines also have a low oil shutoff.

Thanks JJ, my engine oil turned out to be very low. I will start checking the level much more often -- daily... I read in the Robin manual:
"If multi-grade oil is used, oil consumption tends to increase when the ambient temperature is high." I am using 10W-40 4-Stroke engine oil.

Putting a temp sensor on the dip stick sounds like a good idea. I will still have to find out what a normal operating temp might be.