NX4510HST Smoking and Rapping

[JimR]

I am afraid with the Kioti it will go into reduced power mode if the computer does not see the proper parameters. Another member here, MinnesotaEric believes he has found a way to fool the computer but I don't think he has installed it yet.

Here is his thread.
https://www.tractorbynet.com/forums/kioti-owning-operating/420871-generic-dpf-filter-delete.html

Sorry for your troubles but this is the very reason I choose Branson over the rest when I was in the market last year.

My tractor may just go on the market after it returns home. I will be looking for a non Tier IV tractor. I have pretty much had it this time. A blown friggin turbo at 680 hours is bullcrap. That oil in the intake was there 200 hours ago. The dealer told me that was normal. I don't really think it is normal. I am going to do some research to find out about turbos leaking oil.

 

[K5lwq]

I hear ya. Turbos do go out but I agree this is premature. My theory is seals are not what they use to be. I have had more seal failure in the last 10 years than I have seen over my entire life. It is almost impossible to get a good quality seal anymore.

Kioti does make a good tractor and any brand are susceptible to failure but I am old school and like mechanical direct injection far more than ECU controlled common rail. I chose displacement over turbo because I am at low altitude and it is one less thing to give trouble.

As far as what the dealer told you about the oil being normal, unfortunately you may hear similar bad information from a dealer from any brand. The true mechanics are almost all but gone. Very few still understand troubleshooting and actual testing of components before replacement. The industry is becoming a group of parts changers and manufacturers are designing equipment to match. There may be one small component go bad but to fix it a whole unit or assembly is required.

Again sorry for your troubles and do not want to suggest you will continue to have problems after you get the Kioti home. Likely you will not ever have another issue but it certainly is not out of the question.

 

[coobie]

WOW what a PIA I have been following your Saga.Sorry to hear this.IMHO if I had the extra $$ once that tractor was fixed I would sell it and buy a different brand.Good luck moving forward.

 

[JimR]

WOW what a PIA I have been following your Saga.Sorry to hear this.IMHO if I had the extra $$ once that tractor was fixed I would sell it and buy a different brand.Good luck moving forward.

Thanks Coobie, I did some research last night on blown turbos and blown turbo seals. What I found was that a totally plugged DPF causes extreme backpressure and overheating of a turbo which in turn can destroy the inards of a turbo. If you tear down the turbo you can tell if it overheated as the parts will be discolored. Basically the turbo self destructs. My guess is that the leaking oil in the turbo was caused by the many prior DPF failures around the 430 - 450 hour mark when I had the bad fuel injector and the DPF wouldn't do a complete regeneration cycle. I'm thinking more like a pre-teir IV tractor with low hours.

 

[coobie]

Thanks Coobie, I did some research last night on blown turbos and blown turbo seals. What I found was that a totally plugged DPF causes extreme backpressure and overheating of a turbo which in turn can destroy the inards of a turbo. If you tear down the turbo you can tell if it overheated as the parts will be discolored. Basically the turbo self destructs. My guess is that the leaking oil in the turbo was caused by the many prior DPF failures around the 430 - 450 hour mark when I had the bad fuel injector and the DPF wouldn't do a complete regeneration cycle. I'm thinking more like a pre-teir IV tractor with low hours.

Sorry to hear all of your troubles.One reason I purchased my 2012 kioti before more emission BS.Hope you get it resolved.

 

[JimR]

Kioti rep. was there today looking at my tractor. Test to be performed in the near future on fuel and oil samples. I just filled up the fuel and the oil and filter has 86 hours on it. Thank You Kioti for jumping right on my tractor and thanks to the dealer for his promptness in my dire times.

 

[Robin Veerman]

Thanks Coobie, I did some research last night on blown turbos and blown turbo seals. What I found was that a totally plugged DPF causes extreme backpressure and overheating of a turbo which in turn can destroy the inards of a turbo. If you tear down the turbo you can tell if it overheated as the parts will be discolored. Basically the turbo self destructs. My guess is that the leaking oil in the turbo was caused by the many prior DPF failures around the 430 - 450 hour mark when I had the bad fuel injector and the DPF wouldn't do a complete regeneration cycle. I'm thinking more like a pre-teir IV tractor with low hours.

Ya, I feel for you, what with all the issues that you've had. I use AMSOIL in my Kioti, and feel that it is one of the best oils available. Shipped right to my door, and sometimes free shipping with promos. My tractor is a tier111 and no turbo so it is probably easier on the oil than your tractor. Check out the Signature Series in the link and read the Turbo concerns that it addresses etc. Probably a good idea to use a fuel additive to promote cleaner burning too. Keep us informed how the dealer treats you. Dutchy

Diesel Engine Oil: Shop Engine Oil for Diesel Engines - AMSOIL

Fuel Additives: Buy Fuel Additives for Cars & Trucks - AMSOIL

 

[JimR]

Ya, I feel for you, what with all the issues that you've had. I use AMSOIL in my Kioti, and feel that it is one of the best oils available. Shipped right to my door, and sometimes free shipping with promos. My tractor is a tier111 and no turbo so it is probably easier on the oil than your tractor. Check out the Signature Series in the link and read the Turbo concerns that it addresses etc. Probably a good idea to use a fuel additive to promote cleaner burning too. Keep us informed how the dealer treats you. Dutchy

Diesel Engine Oil: Shop Engine Oil for Diesel Engines - AMSOIL

Fuel Additives: Buy Fuel Additives for Cars & Trucks - AMSOIL

So far the dealer has been really good. I did not bring my tractor to the same dealer that I dealt with before. I sent them a text over the weekend and they never got back to me. Plus they don't open until Wednesday so I took my tractor to another place that is open 6 days a week. I believe that I made the right decision just based on how fast they jumped on my problem and that the Kioti rep was there 2 days later. Time will tell what happens.

 

[coobie]

So far the dealer has been really good. I did not bring my tractor to the same dealer that I dealt with before. I sent them a text over the weekend and they never got back to me. Plus they don't open until Wednesday so I took my tractor to another place that is open 6 days a week. I believe that I made the right decision just based on how fast they jumped on my problem and that the Kioti rep was there 2 days later. Time will tell what happens.

Following your posts Jim hopefully with a good outcome.

 

[todd92]

Mine had the turbo replaced because of a leaking seal and repeatedly ending up in limp mode. It went into limp mode 10 hours after the new turbo was installed. It's back at the dealer. Class action lawsuit anyone? There's obviously a defect.

 

[LouNY]

Just out of curiosity what weight oils are you guys using with the turbo seal issues?
Are you using 15w-40 or one of the lighter 5w-40's or even 0w-40.
Cold weather + cold oil + rpm = high oil pressure.

 

[Kioti Dave]

Just out of curiosity what weight oils are you guys using with the turbo seal issues?
Are you using 15w-40 or one of the lighter 5w-40's or even 0w-40.
Cold weather + cold oil + rpm = high oil pressure.

Living in Canada, with temps going down to minus 30, I have been using Rotella T6 0W40.

 

[Kioti Dave]

I think Jim had a good point. Once the turbo starts to leak a bit, the DPF clogs up and the pressure builds up and probably causes more damage to the seals. That seems to be what happened to mine. When they replaced my turbo, the DPF was completely clogged. They cleaned it after the turbo was replaced, and it seems to be fine now.

 

[JimR]

Mine had the turbo replaced because of a leaking seal and repeatedly ending up in limp mode. It went into limp mode 10 hours after the new turbo was installed. It's back at the dealer. Class action lawsuit anyone? There's obviously a defect.

Hey Todd, What year is your tractor? How many hours are on it? The early models used different injectors and I think injector pump and maybe the turbo.

 

[JimR]

Just out of curiosity what weight oils are you guys using with the turbo seal issues?
Are you using 15w-40 or one of the lighter 5w-40's or even 0w-40.
Cold weather + cold oil + rpm = high oil pressure.

I'm running Shell Rotella T4 15-40W. I always let it warm up a bit at an idle before moving the throttle up to 1500 to get the hydraulics warmed up before I use the tractor. It has not been cold here this year at all. The other day it was 3 at 6am, but I don't have my tractor. I have never used it when it is really really cold, "NO CAB" I run that same oil in my Ram 2500 6.4 hemi.

 

[JimR]

Just out of curiosity what weight oils are you guys using with the turbo seal issues?
Are you using 15w-40 or one of the lighter 5w-40's or even 0w-40.
Cold weather + cold oil + rpm = high oil pressure.

Correct me if I am wrong but all oil systems that I know of have a relief valve so that the pressure does not go over a certain point.

 

[JimR]

I got a call yesterday from the dealer they did a compression test on my motor. The cylinders are below the low when tested dry. With oil in the cylinder it comes up just over the minimum. Looks like the head will be coming off next.

 

[coobie]

I got a call yesterday from the dealer they did a compression test on my motor. The cylinders are below the low when tested dry. With oil in the cylinder it comes up just over the minimum. Looks like the head will be coming off next.

Sigh...Wish you well Jim.

 

[LouNY]

Correct me if I am wrong but all oil systems that I know of have a relief valve so that the pressure does not go over a certain point.

Yes to my knowledge they do, however I have seen too many engines with mechanical gauges pegged out or running very high with cold oil,
even at low rpm.
Had one older 560 IH that would be over 80# with 15w-40 switched to Rotella T6 5w-40 and an instant 45-50PSI on startup but no longer pegging the gauge.
I seem to recall a poster on here, I think with an LS that had to go with the 5w-40 because of turbo issues.

To bad to hear about low compression on top of everything.
Good luck with her.

 

[RustyA]

New Holland boomer now recommends 0w40 full sun and has new pcm strategy to limit roms until oil is warm to prevent turbo failures.