Quote:
Originally Posted by drcjv
Jonathan it is an understatement to say that you and I rarely see eye to eye, but I totally agree that on this subject you are way more qualified than I am. So if the temp of the hose is around 160 is the tractor truly overheating? Also Everyone has suggested a new gauge which is great and I have looked at the autometer gauges. The problem is short of doing what Oak did how do I thread the sender in. How do I adapt for the different threads ?
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No, it's not overheating from the temp gun numbers you gave in your first post. I'd say your gauge, or the sending unit has failed.
Where Oak mounted his sending unit is the absolute best place. You want the sending unit either in the cylinder head, or behind the thermostat near where the circulation bypass is. It must be on the engine side of the thermostat.
Kubota uses BPT (British Pipe) threads. I have never seen an adapter, but as mentioned they are close to NPT thread, just enough different to be an issue. I would use a tap and just tap it to a NPT thread. Only other option is to drill and tap the "neck" in the same place Oaks sending unit is and mount it there. Not a bad deal, and may be easier than tapping the threads in the head. If you have never tapped aluminum, go slow. Aluminum isn't fun to tap. Pull the tap out often and clean it. Go about 1/4 turn or so, then back it up past the burr. (You will feel it.) Then go forward again. Pull it out at least every revolution. If you tap the head, you can drain the coolant and put a shop vac set to blow on the radiator cap (neck). It will keep air moving through the system and blow the metal out as you tap. Lower pressure and more volume than using compressed air.
I would strongly suggest a mechanical temp gauge. Electric ones are fine, but mechanical tend to be more accurate unless you spend several dollars (Like $100) on a good gauge and sending unit. Issue will be is if there is enough room for the temp probe. You may have to go with an electric temp sender/gauge.