Mahindra 2565 RPM Issue

[Got2BTru]

I don't have a "load rpm" issue...mine hits its RPM fine...for a few hours, then if I drop it down to stop working or take care of the dogs, etc. it will not go back up in RPM to full throttle.

 

[jmh1783]

Got2BTru: I just bought a 2555 and immediately had the same problem you are having. My dealer did two things. He injected graphite into the throttle cable housing. I don't think that did anything. The second thing is he flashed the computer with a brand new update from Mahindra. I just got it back yesterday but I did an hour of mowing and then tested the throttle (down to idle, wait, back up to 2300). No problem. Two additional things I've noticed. The temp gauge now seems to act like it should. In this I mean that it slowly climbs up. Before it would sit at cold for the longest time then jump. Second is the engine idle is different. Can't describe it. It sounds more authoritative/more distinct if that makes any sense although the idle speeds seems the same.

 

[Got2BTru]

I am SO SORRY for not responding earlier...my dealer flashed the ECU 2 weekends ago and I haven't had the issue yet.

 

[Spentit]

I have a 2565 gear cab tractor that I bought this past spring. I use it to clear brush with my root grapple and Woods BB720X rotary cutter. It's very first job took two days and was within the first 50 hours of operation. It was also used to put in a couple of asphalt millings driveways and grade the gravel roads at my gun club.

At 63 hours, I took it back to the dealer for its 50 hour service. A day later I received a phone call that my tractor was not going to be ready to pick up the next day as promised because the engine had locked up and failed. They had performed the service and then started the tractor and ran it up to full throttle in the lot for about 25 minutes looking for coolant leaks (I had the lower rad hose leak at the water pump after doing some work on my driveway) and see if the check engine light would come back on since it was intermittent. He was checking the stored codes on his computer when the whole dealership heard a terrible squealing sound and then silence.

The mechanic came out of the garage, the owner came out of the showroom and everybody stood there looking at each other with the mechanic stating that he had put 7.5 quarts of fresh oil in it so that wasn't the problem. This was on a Friday of course so there was no digging into the cause of this until the following week. Now at this point in my story I have to say that I wasn't upset or angry, in fact both the owner and myself were laughing about it because of his phone call to me and his description of his face when the dead silence occurred. I have an automotive corporate warranty background so I understand that things like this happen and there's no use in getting stressed or upset, just work together to fix the problem.

So, the next Monday I went and talked to the dealer and looked things over. Upon draining the oil we found it full of metal bits which did not show up on the dipstick. After the pan was removed, the problem became evident and hence the reason I'm replying to this string. The piston cooling jet's/nozzles which direct engine oil to the bottom of the piston to cool it, had been hitting the crankshaft since day one. When there was no longer any oil getting to the bottom of the piston to cool it the engine locked up.

I now have my tractor back and the very first time I put it to work I realized that the old engine was bad from the start. The new one spins up quicker and I don't sense any problems with power or its ability to get up to speed. After talking to the dealer again he told me that he had thought my engine seemed sluggish as well but had written it off to being a new tractor that had not yet broke in.

So why am I telling this tale of woe here? I guess to let everyone who has purchased a tractor with one of these engines to check the oil coming out of the oil pan for metal shavings if you suspect that the tractor isn't coming up to speed or isn't generating the power it should be. Fortunately for me, Mahindra had 3 complete engines in stock so I was able to get one and have minimal down time. What concerns me more, is that issues like the one I had are rarely just one off events so check your drain oil carefully for metal.

I know this is an old post but I just bought a 2016 2565 cab shuttle and am hoping my tractor wasn't on the assembly line with yours. Did they trace why the jets were contacting the crank? poor design, incorrect installation, or any reason for this. After running my serial # with a local dealer he found my tractor has not yet had the computer update. The tractors warranty runs out in June of this year so I am wondering if I should park it in the yard at WOT and see if it passes muster before its not covered. My last four are 1020. At all close to yours? Hr meter reads 335.0

 

[Finallygotone]

I know this is an old post but I just bought a 2016 2565 cab shuttle and am hoping my tractor wasn't on the assembly line with yours. Did they trace why the jets were contacting the crank? poor design, incorrect installation, or any reason for this. After running my serial # with a local dealer he found my tractor has not yet had the computer update. The tractors warranty runs out in June of this year so I am wondering if I should park it in the yard at WOT and see if it passes muster before its not covered. My last four are 1020. At all close to yours? Hr meter reads 335.0

If you致e got 335 hours on your engine I知 pretty sure youæ±*e fine. The last 4 of my serial are 0768 so your tractor chassis was built after mine. I致e got about 350 hours on the new motor and I知 not concerned about it at all.

 

[Spentit]

Thank you for the reply

 

[e5wd6114]

I have a 2555 HST and I start out ok, but after a couple of hours, if I lower my throttle, it will NOT get back to PTO speed. Dealer has no idea at this point...

Has your dealer looked at TPS? You should measure how far the cable moved when you have full RPM and when it fails to reach the same RPM. Your unit has and electric actuator that pulls the throttle cable and may be the issue.