Engine Coolant Temperature Gauge 4540/4550

[swampy6]

Just trying to understand, do I want to raise the engine temp just to be able to confirm that the temperature gauge is working? Or does the tractor tend to run with a temp that is too low and raising it is good for the tractor?

You want the temp running in the green, from what I was told a cool running diesel isn't good. One of the members posted about some Mahindra models running cool, he's correct on the 4540 without the restrictor.

 

[swampy6]

Here's where our gauge on the 4540 usually runs at.

 

[WorkingToLearn]

This is a wealth of information, much appreciated.

I talked to a mechanic at the Kubota / New Holland dealer where I bought the Mahindra. He explained that he can't do the ECU flash. I was hoping he might be interested in learning something new with the inline restrictor but I imagine there is enough new to keep him busy with the tractors his shop supports. I don't seem to have an actual Mahindra dealer in my area. Can anyone suggest a dealer where the service dept has worked with the restrictor kits that i could call and see if I could get one and try to find a mechanic here who could install it?

 

[gardner175]

Louis Gelder & Sons Co. 269-934-9900 is the general number.

 

[WorkingToLearn]

I wonder if there would be any connection to engine temperature running too low (or too high) and how well the emissions control system works and exhaust fumes?

 

[Jabonee]

Can you post the sn# of the tractor? I'll check if the reflash has been done

 

[Sgt Maj]

I had the same issue with my 4550. I got the reflash which did not fix it. However, I learned about the restrictor issue from folks here and was able to correct the problem: there is a small diameter hose coming from the top of the radiator to the exhaust cooling system, it is very easy to access. The hose allows a small amount of coolant to by-pass the thermostat. On the hose is a fitting or restrictor that in some cases lets too much coolant through. You can test this by pinching off the hose with a fuel line clamp or vise grips with engine running. If your temperature gauge goes up after 15 minutes or so, then you probably need the new restrictor fitting that Mahindra made available. The Mahindra Part Number for the replacement restrictor hose fitting having a smaller inside diameter is 006029544D.

 

[Sgt Maj]

I should also add that the fitting installs easily with two hose clamps, so you should be able do it yourself without needing a mechanic.

 

[WorkingToLearn]

Can you post the sn# of the tractor? I'll check if the reflash has been done

That would be great. Thought I had a photo of the SN on my phone. I'll get it when I see the tractor tomorrow.

 

[WorkingToLearn]

I had the same issue with my 4550. I got the reflash which did not fix it. However, I learned about the restrictor issue from folks here and was able to correct the problem: there is a small diameter hose coming from the top of the radiator to the exhaust cooling system, it is very easy to access. The hose allows a small amount of coolant to by-pass the thermostat. On the hose is a fitting or restrictor that in some cases lets too much coolant through. You can test this by pinching off the hose with a fuel line clamp or vise grips with engine running. If your temperature gauge goes up after 15 minutes or so, then you probably need the new restrictor fitting that Mahindra made available. The Mahindra Part Number for the replacement restrictor hose fitting having a smaller inside diameter is 006029544D.

Do you think I would also need a new "hose pipe radiator inlet-EPDM" , or the existing should be fine?