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tomnky
Platinum Member
yes the sending unit as well.
Pressure Testing a BX2200
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tomnky
Platinum Member
Well Kevin I intend to find out just what the culprit is whether it actually is a leak, and it shows no visible signs of that happening or maybe it is some other cause maybe even an underperforming water pump.
Thanks
Thanks
EE_Bota
Veteran Member
TOMNKY...thanks for clearing up that pressure testing is a good way to test for a leak. You said you were getting hot, but you did not say your were losing fluid.
In fairness to you, you asked if we knew where to get a cap that would help you pressurize the system. I do not.
Air goes places easier than water. Look in the radiator while running, and you will know if there is a path to the cylinder from the water jacket by seeing lots of bubbles, because cylinder gasses will pass through any gap faster than water will.
Pull the dipstick and look for water, or change the oil. If there is water, it came from a head problem. If there is not, there is not problem there.
If no oil in the water and no water in the oil, there is not a problem there.
If I HAD to pressure test, and could not find a cap:
If you know the fitting size of the sending unit, it should be easy enough to pressurize the system through that. Your manual should tell you the releaf pressure of the cap, etc. So pressurize to just below that.
In fairness to you, you asked if we knew where to get a cap that would help you pressurize the system. I do not.
Air goes places easier than water. Look in the radiator while running, and you will know if there is a path to the cylinder from the water jacket by seeing lots of bubbles, because cylinder gasses will pass through any gap faster than water will.
Pull the dipstick and look for water, or change the oil. If there is water, it came from a head problem. If there is not, there is not problem there.
If no oil in the water and no water in the oil, there is not a problem there.
If I HAD to pressure test, and could not find a cap:
If you know the fitting size of the sending unit, it should be easy enough to pressurize the system through that. Your manual should tell you the releaf pressure of the cap, etc. So pressurize to just below that.
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tomnky
Platinum Member
I have not seen any indication of coolant in the oil or oil in the coolant at all.
The unit never does get in the red on the gauge although in cold weather say 20 degrees the needle is up to the edge of the thermometer ,but it does indicate way warmer than I think it should. removing the cap while it is warm shows no signs of air bubbles either.
I guess I am one of these that has to be assured that everything is up to snuff, not to mention what the costs of repairs are today.
I just got an email from a technician that tells me they do use the Snap On tester , so I think that is the way I will go , Heck if nothing else it will be a new toy I can get by the CFO.
What concerns me a lot is the fact that several on here say that theirs does run on the cool side, Makes me think even more something is awry.
The unit never does get in the red on the gauge although in cold weather say 20 degrees the needle is up to the edge of the thermometer ,but it does indicate way warmer than I think it should. removing the cap while it is warm shows no signs of air bubbles either.
I guess I am one of these that has to be assured that everything is up to snuff, not to mention what the costs of repairs are today.
I just got an email from a technician that tells me they do use the Snap On tester , so I think that is the way I will go , Heck if nothing else it will be a new toy I can get by the CFO.
What concerns me a lot is the fact that several on here say that theirs does run on the cool side, Makes me think even more something is awry.
Last edited:
jruss
Bronze Member
I would think that with the varience in the temp gauge readings posted here that either the gauges or sending units are faulty. I have a BX2200 and my gauge reads just above the half-way mark when mowing in 95 degree heat and right below Half in any other conditions.
The best way I have found to check water temp is with a digital thermometer. Can get one with probe to go in radiator or the non contact type of infared.
The best way I have found to check water temp is with a digital thermometer. Can get one with probe to go in radiator or the non contact type of infared.
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tomnky
Platinum Member
As I said before the sending unit and gauge have been changed. I am working on getting a Fluke 63 to check the temperature.
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tomnky
Platinum Member
Kevin , where will one find the resistance values that are corelated to the temperature? Wouldn't You have to have an approximate value of resistance for the temperature?
