[bakerfamily3565]

Did you ever get the issue with your tractor resolved?

 

[jpayne12]

I am having very similar issues as well. 2019 1735M 225 hours. Replaced all filters, drained the fuel, checked every fuel line for kinks. Dealer has a dyno and sees the problem, but the computer is not showing any codes. I suspect it is the injectors, but I am not replacing them unless i know for sure. Been at dealer for over a month.

 

[TopSpeed1]

So frustrating, still no resolution. I went off a lot of tips (messaged to me) incl hot or heated diesel fuel and several other ideas like fuel pump failure under higher heat and work loads. I am basically orphaned because my dealer is clueless, worse than me. A dyno with Agco software hooked up to my ecu would be the ticket.

The obvious: Fuel filters (both) replaced 2X within 50 hrs.

 

[TopSpeed1]

Did you ever get the issue with your tractor resolved?

No!

 

[jpayne12]

Did you ever get the issue with your tractor resolved?

No!

Mine has been in shop for 2 months. Dealer can replicate the issue but is unable to detemine the problem.

 

[TopSpeed1]

I know that the injectors are quite pricey and to do this as a "process of elimination" is probably out of most dealers equation (scope). But, wouldn't you think Agco would have a bulletin out on this by now?... seeing it's definitely not a rarity or fluke. jus say'n.

 

[TopSpeed1]

I know that the injectors are quite pricey and to do this as a "process of elimination" is probably out of most dealers equation (scope). But, wouldn't you think Agco would have a bulletin out on this by now?... seeing it's definitely not a rarity or fluke. jus say'n.

 

[jpayne12]

My dealer has a dyno and agco software. Has also consulted with agco. They have tested literally everything. Right now the injectors are at a 3rd party being tested. My dealer is really trying it is just a head scratching issue.

 

[TopSpeed1]

Head scratching for sure, and, I won't have any hair left at the rate we're going. Here's a post I made on another forum:

I should report to the public, I have been in extensive contact (messaging) with a few members of this and other tractor forums. This info in reality should of been posted (instead of private messaging) as some may have learned from this banter.

In a nutshell...
-- I tested the possible fuel tank air-lock and surface wise this was posted. Ruled; This is not the problem.
-- Re-installed new upper and lower fuel filters now 3x within 41 hrs.
-- Changed entire Hydro oil and filter system (shuttle shift owners have also reported this power loss issue) so this was done mainly maintenance wise.
-- I used a laser temp gun and shot extensive heat temps on the diesel fuel and the poly tank. Almost 3 weeks of hard usage in hot temps. The theory was possibly the diesel (fuel) getting too hot to getting compressed inefficiently. BTW, my reads were all 78F-92F ambient temp days- I got 150-160F on the fuel readings; shooting downward in the tank fill hole (cup strainer removed). The outside of the poly fuel tank was quite hot to the touch but read ~140-150F. I did not think this was extravagant, of course I could be wrong as always!
-- I shot temps on the engine block in varying areas including the rail pump, the highest I could get was ~220F. The tractors LCD gauge reads normal 3 bars. The turbo (since this has been noted as to the problem) read on the hot (exhaust) side mostly high 300's, I saw 400F on a few shoots immediately stopping and on the 95F days.
-- I can't find my (field) paper note on the bottom of the oil crankcase. I can remember it as close to the block temps, nothing stood out so I may have just crumpled up that note, sorry.

Anything else I will be happy to test (within my scope). Being a still newish tractor, I'm not willing to rip apart complex parts, I apologize for that, but I also have a life besides a tractor. Peace out and I want to thank everyone so far for all the input and possible theories.

-KJ

 

[steddy]

I’ve been following this thread with interest. Seems like an increasingly “common” problem.

If new injectors or turbo replacement don’t solve it (which seems to have been the case for multiple others)…

I’m also guessing it’s a fuel problem, but is it possible it’s not directly related to the fuel system? I’m curious if there’s some coolant temperature sensor or some other sensor such as exhaust gas temperature sensor giving an out-of-range reading that’s somehow causing the engine to de-tune itself (supplying less fuel, altering timing) thinking it’s overheating, but it’s not registering anything on the gauge. Why the computer/software wouldn’t pick up on this I don’t know. I’m not familiar with this model, but is whatever supplies information to the engine/coolant temperature gauge different from the one that feeds information to the engine control module?

 

[TopSpeed1]

I’ve been following this thread with interest. Seems like an increasingly “common” problem.

If new injectors or turbo replacement don’t solve it (which seems to have been the case for multiple others)…

I’m also guessing it’s a fuel problem, but is it possible it’s not directly related to the fuel system? I’m curious if there’s some coolant temperature sensor or some other sensor such as exhaust gas temperature sensor giving an out-of-range reading that’s somehow causing the engine to de-tune itself (supplying less fuel, altering timing) thinking it’s overheating, but it’s not registering anything on the gauge. Why the computer/software wouldn’t pick up on this I don’t know. I’m not familiar with this model, but is whatever supplies information to the engine/coolant temperature gauge different from the one that feeds information to the engine control module?

At this point, nothing is out of bounds.

I can report, the last few times right as the loss of power happens, I experienced a drop in power and then a sudden resurge back to normal power, this flipped back and forth for about 3-4 seconds, then the power loss stayed steady.

 

[TopSpeed1]

I'm currently researching the injectors and possible 3rd party (aftermarket) distributors. I'm not saying the injectors are the issue, just doing my pre-search research. Cost wise It looks like $449(ea). Lots to be done on my end before I make this info fully public (as to not give out any false info).

 

[jpayne12]

I spent hours doing the same just in case it is the injectors. I did not have the injector numbers because was at the dealer, but I did speak to a couple of people , one in Atlanta and one in Illinois that specialize in Perkins engines and they told me if I could get the injector number they could probably get a Perkins injector. I never followed thru any more but would love to know what you find out because agco injectors are $1400 each. I am still waiting on an update from my dealer.

 

[TopSpeed1]

I spent hours doing the same just in case it is the injectors. I did not have the injector numbers because was at the dealer, but I did speak to a couple of people , one in Atlanta and one in Illinois that specialize in Perkins engines and they told me if I could get the injector number they could probably get a Perkins injector. I never followed thru any more but would love to know what you find out because agco injectors are $1400 each. I am still waiting on an update from my dealer.

Your Perkins dealer should be able to easily cross over the Agco 7064927M91
(I know this is for at least the MF 1735M & 1740M tractors, +many more, check for your Model#)

 

[jpayne12]

I'm currently researching the injectors and possible 3rd party (aftermarket) distributors. I'm not saying the injectors are the issue, just doing my pre-search research. Cost wise It looks like $449(ea). Lots to be done on my end before I make this info fully public (as to not give out any false info).
View attachment 2662049

Were you able to confirm model numbers for the injectors?

 

[MF1735M]

1735M, same power loss issue, struggled for a long time with trying different things to figure it out. I tried replacing almost everything on the fuel side, thought there is no possible way it could be just the injectors makes no sense its gotta be something else. Mine was so bad when it started acting up it would stall out eventually.

Well I finally decided to try some aftermarket denso injectors anyway (as Massey is ridiculously priced.) Low and behold the tractor is fine now. I got a mechanic out after to program the fuel trims , if you DIY take pictures of all the numbers on the injectors makes life easier for them. Also get new copper washers/ gaskets and rubber o rings for them (i did go to massey for those)

Put about 20hr of hard work in with it since with a 6ft bush hog, even got it hot working in the bush with a radiator full of fuzz, and still fine.

The injectors cross to a cat industrial engine as well if you got a caterpillar dealer close by they're quite a bit cheaper than massey also. If you're DIY get some swivel head ratchet wrenches metric ones and have a swear jar handy

Denso 295050-1160
Cat 457-5836
Massey o ring (need 3) 7064870M1
Massey copper gasket / washer (3 again) 7064940M1
Massey Injector line gaskets (need 6) 7064928M1

 

[jpayne12]

1735M, same power loss issue, struggled for a long time with trying different things to figure it out. I tried replacing almost everything on the fuel side, thought there is no possible way it could be just the injectors makes no sense its gotta be something else. Mine was so bad when it started acting up it would stall out eventually.

Well I finally decided to try some aftermarket denso injectors anyway (as Massey is ridiculously priced.) Low and behold the tractor is fine now. I got a mechanic out after to program the fuel trims , if you DIY take pictures of all the numbers on the injectors makes life easier for them. Also get new copper washers/ gaskets and rubber o rings for them (i did go to massey for those)

Put about 20hr of hard work in with it since with a 6ft bush hog, even got it hot working in the bush with a radiator full of fuzz, and still fine.

The injectors cross to a cat industrial engine as well if you got a caterpillar dealer close by they're quite a bit cheaper than massey also. If you're DIY get some swivel head ratchet wrenches metric ones and have a swear jar handy

Denso 295050-1160
Cat 457-5836
Massey o ring (need 3) 7064870M1
Massey copper gasket / washer (3 again) 7064940M1
Massey Injector line gaskets (need 6) 7064928M1

I was literally about to post to my closure on my issue when I saw your post. My dealer kept mine for 3.5 months checking everything. I felt it was the injectors all along but they tried to make it something else. Turns out even after a 3rd party tested the injectors and said they were good, it ended up being the injectors. I ended up getting my injectors thru cat and let my dealer install them. They also replaced the lift pump but I am not sure about the copper washers…maybe they were ok.

Still trying to figure out what caused the issue in the first place and hoping it does not happen again. Glad you posted the reference numbers, I was going to do the same.

 

[TopSpeed1]

Most excellent news @MF1735M & @jpayne12
Hoot hoot!!! Gold stars to you guys for sure!

And yeah, my dealer was not giving in that it was the injectors either. I've been swamped all Summer and I was not willing to have down time during, so I'll address this between mowing and snow plowing season. Thank you fellas for this confirmation!!!

Were you able to confirm model numbers for the injectors?

I guess the fella's above did!

So as for me doing this replacement(s)? ...the thing I'm hung-up on is the marrying or registering of the injectors to the ICU. I believe I could do the physical wrenching but that may be only half the battle. As always, keep us posted and updated here and I will do the same as well.