North Idaho Wolfman
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2008 Kubota BX23 engine in BX25 Temp Gauge Stuck pinned HOT
- Thread starter pgrovetom
- Start date
Hmmmmm spitballling here....
If you determined both sides (temp and fuel)have the same gear train, perhaps you can find a 'broken' panel that you could salvage from it to mix and match a set of working parts?
Looking at your picture, it looks like dirt/mud got in at some point and hopefully, that was the cause of the failure and will not happen again.
If you determined both sides (temp and fuel)have the same gear train, perhaps you can find a 'broken' panel that you could salvage from it to mix and match a set of working parts?
Looking at your picture, it looks like dirt/mud got in at some point and hopefully, that was the cause of the failure and will not happen again.
I've scoured the Internet and its not available, new or used. Once I got inside, its pretty clean. I think I'll use plan B. Its not terribly difficult to use the varying voltage at the temperature sensor/sender and calibrating it so it drives a new $10 water gauge. I drew up a simple circuit. By adjusting the gain via the resistor values, the Kubota sensor voltage range from Hot to Cold can operate an auto water temperature gauge even though the sensor resistance range is different. If I use a waterproof gauge and mount it wherever makes sense, I now know my engine temperature. It would also be easy to light a light or buzz a buzzer when it got too hot.
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North Idaho Wolfman
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You're overthinking it.
Just buy a gauge and sensor that match, no extra work involved.
JRHill
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BTW to the OP, shutting the engine down on an engine that is heavily under load and overheating isn't necessarily a good thing to do. As long as the oil pressure is good you should immediately remove the load and keep the unit going at an elevated low idle and let the coolant continue to circulate. There are exceptions to this, of course.
ahh there's NO fun in that !!!I'd replace the Kubota sensor with a DS18B20 temp sensor, feed into a PIC microcontroller and uses a 4x20 LCD display to show the temperature. Cost is maybe $20, take an evening to make, 20 minutes to program.
armylifer
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I remember reading several years ago that one member replaced an older dash with a newer model dash because he liked the newer model gauges. IIRC, he changed a BXxx60 model to a BXxx70 model dash. I don't remember all the specifics but my question is; could you replace your whole dash with a newer model dash?
North Idaho Wolfman
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Yes. I am looking for a gauge sensor combo that fits the Kubota M10x1.25 inch sensor but that combo is also rare. When I compared the thread specs on the BX25 and the available sensors, they don't match all the sensors I was able to review. My conversion circuit is how I would allow the use of the Kubota sensor with a commercial auto/boat gauge if I can't find one that fits the threads.
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I doubt any other dash is shaped such that it would fit. I also doubt the electrical interface is exact such all the functions work.
That's one approach. That sensor cannot be adapted to the Kubota sensor threaded sensor. It also uses a non-waterproof LCD display. I've done Arduino projects but getting all the development stuff out of storage is a lot of effort when a simple one Op Amp circuit will do and I can buy a commercial $15 gauge that's waterproof that's used in boat applications. I've done both and bread-boarding an Op Amp and Kubota sensor and Ebay gauge is a lot faster. If I had my Arduino development software and kit out on my table, I would use a micro-controller even for my approach. All that is buried in storage and I'd have to relearn the whole process while bread-boarding an Op Amp would be going in an hour. My Kubota has taken many rainstorms and needs a waterproof solution.
I just use a properly sized bolt, drill 3/16" hole down the bolt head 'deep enough', 2 wires to DS unit,epoxy it in.wait a day to install.Never got into Arduinos...went with PICs during the 68HC11 debacle 4 decades ago.
I like the KISS approach though I'd have to dig to find my stash of 741 opamps , they have to be 1/2 century old now !!
I like the KISS approach though I'd have to dig to find my stash of 741 opamps , they have to be 1/2 century old now !!