I just purchased a 2012 left-over for (what I thought was) a good price. I noticed the thermostat gauge was not operating and thought it may have been a bad gauge or temperature sensor. I called the dealership and the service manager apologized for the problem and that he "forgot" to tell about the known issue.
The service manager told the forty and fifty horsepower tractors did not have temperature readings that would not rise (unless it was ninety degrees out and it was being worked hard) due to an oil cooler issue. I was shown a TSB which referenced owners complaining of no cab heat (in the cab models). It was explained that Mahindra knew about the issue, but they did not consider the issue detrimental and were considering the issue, but were not scheduling a recall or permanent fix for the problem. The "fix" in the TSB was to put some sort of restriction in the "in" line of the oil cooler.
I was told that another customer put a valve in the "in" line and left it approximately ｼ turn closed to slow the coolant going to the cooler and, therefore, raising the temperature of the engine coolant and engine to an acceptable level. It was explained the thermostat is 160 degrees.
I searched other forum discussion and found that the oil temperature should be approximately twenty to forty degrees higher than engine operating temperature.
I took readings (with a handheld temperature gun) at the top of the metal portion of the radiator, y-coupling that splits the upper radiator hose with the 5/8 hose to the oil cooler, the exhaust manifold and a couple places on the block. As expected the exhaust manifold was the hottest, but only at 128 degrees. The other spots checked were all less than 100 degrees. This was after running the tractor for approximately forty minutes during a sixty degree day.
A neighbor of mine has the fifty horsepower and has the same problem.
I see the issue as detrimental to the long term engine life. In addition, I'd rather not reduce the cooling to oil cooler (as suggested). Has anyone else had experience with this issue and maybe have a suggestion to fix it (other than the band aid suggested by Mahindra)?
I am asking this ONLY of those that have experience the problem.
Thank you for your time.
The service manager told the forty and fifty horsepower tractors did not have temperature readings that would not rise (unless it was ninety degrees out and it was being worked hard) due to an oil cooler issue. I was shown a TSB which referenced owners complaining of no cab heat (in the cab models). It was explained that Mahindra knew about the issue, but they did not consider the issue detrimental and were considering the issue, but were not scheduling a recall or permanent fix for the problem. The "fix" in the TSB was to put some sort of restriction in the "in" line of the oil cooler.
I was told that another customer put a valve in the "in" line and left it approximately ｼ turn closed to slow the coolant going to the cooler and, therefore, raising the temperature of the engine coolant and engine to an acceptable level. It was explained the thermostat is 160 degrees.
I searched other forum discussion and found that the oil temperature should be approximately twenty to forty degrees higher than engine operating temperature.
I took readings (with a handheld temperature gun) at the top of the metal portion of the radiator, y-coupling that splits the upper radiator hose with the 5/8 hose to the oil cooler, the exhaust manifold and a couple places on the block. As expected the exhaust manifold was the hottest, but only at 128 degrees. The other spots checked were all less than 100 degrees. This was after running the tractor for approximately forty minutes during a sixty degree day.
A neighbor of mine has the fifty horsepower and has the same problem.
I see the issue as detrimental to the long term engine life. In addition, I'd rather not reduce the cooling to oil cooler (as suggested). Has anyone else had experience with this issue and maybe have a suggestion to fix it (other than the band aid suggested by Mahindra)?
I am asking this ONLY of those that have experience the problem.
Thank you for your time.
