2305 engine needs to be rebuilt

[rsewill]

Would a bad injector explain why the fuel filter was pitch black?

No. Your tractor's problem is more than a bad injector, if an injector is even bad.

 

[Henri88]

No. Your tractor's problem is more than a bad injector, if an injector is even bad.

I agree that I have more than maybe a bad injector. Oil in the air intake is my major concern, but that, I don't think, should explain why my fuel filter was pitch black, like if there has been some exhaust carbon in the fuel, after only 20 hrs of changing it. The only way that I can see this happen is if one of the injector would stick open and some of the exhaust would be force through the open injector and in the return line. But I don't even know if that is mechanically possible. :confused2:

 

[mfreund]

I would GUESS the black in the fuel filter is unrelated and caused by organisms growing in the diesel. Thanks for keeping us updated!

 

[Henri88]

I would GUESS the black in the fuel filter is unrelated and caused by organisms growing in the diesel. Thanks for keeping us updated!

Hmm! Never though of that. Actually, never seen it and I been in diesel equipment all my life, but I have heard of it before. There must be some kind of test to find out? I will Google it and see what comes out. Thanks mfreund!

 

[WilliamBos]

Hmm! Never though of that. Actually, never seen it and I been in diesel equipment all my life, but I have heard of it before. There must be some kind of test to find out? I will Google it and see what comes out. Thanks mfreund!

That is caused by ULSD.

 

[PCABE5]

That is caused by ULSD.

All diesel that has water in it and stored can have bacteria growth not just ULSD. Treating it kills the bacteria but causes sludge problems.

 

[WilliamBos]

All diesel that has water in it and stored can have bacteria growth not just ULSD. Treating it kills the bacteria but causes sludge problems.

Correct. But by removing sulphur, they have increased the chances of it, especially if tractor sits for long periods of time.

 

[Glen Watkins]

So if this treated bacteria tuns into sludge and is caught in the filter then maybe one of these could help because you would be able to see it?

https://jdparts.deere.com/partsmkt/...Copy of fb_Fuel_Filter_Sediment_Bowl_for_.htm

 

[Henri88]

Update! Spoke to the service manager on the phone, they made the compression test and the 3 cylinders are down on compression. Next step is find out the cause and call JD to decide if they rebuilt or a drop-in. I am completely puzzle. Kind of expected to see one bad cylinder, maybe a broken ring, but not the 3 cylinders. What the **** happen? Until I get the confirmation from the JD head office that they will cover it, I am nervous. Please put the snow on hold, until I get my green machine back. This is heading in the direction of a long process.

 

[PCABE5]

Update! Spoke to the service manager on the phone, they made the compression test and the 3 cylinders are down on compression. Next step is find out the cause and call JD to decide if they rebuilt or a drop-in. I am completely puzzle. Kind of expected to see one bad cylinder, maybe a broken ring, but not the 3 cylinders. What the **** happen? Until I get the confirmation from the JD head office that they will cover it, I am nervous. Please put the snow on hold, until I get my green machine back. This is heading in the direction of a long process.

Keep us updated on how JD takes care of you. 300 hours is drop in the bucket for these engines and who could have guessed all three cylinders. Hope you get it back quickly.

 

[tomd999]

Hiya,

Interesting your down on all three. Did they tell you how much they were down? Did they do a leak down or just a compression test? I ask because compression tests are a very basic test that really only tells you if the engine makes enough cylinder pressure to run. They also depend on a fully charged battery to spin the engine at the correct RPM and a clean intake filter so that cylinder fill is as best it can be. Another issue with compression tests on Diesel engines is that it's not adviseable to do a "wet" test as the danger the engine will run on the oil you put in the cylinder to see if it improves ring seal.

A leak down test is more time consuming to do but it will point you to a direction to focus on. (If you hear air in the exhaust, you look to valve issues and so on) Also, most engine manufactures publish leakdown percentages that will exstablish a pass/fail value for your claim.

You may also want to ask if they did or are planning on doing a coolant combustion gas and oil analisys to rule out mechanical failure or contamination. If you popped a head gasket you would expect to find combustion gas in the coolant or if you have abnormal ring/cylinder bore wear the results of the oil test would show that as long as you had some hours on the oil.

Best of luck with your case,

Tom

 

[Henri88]

Hiya,

Interesting your down on all three. Did they tell you how much they were down? Did they do a leak down or just a compression test? I ask because compression tests are a very basic test that really only tells you if the engine makes enough cylinder pressure to run. They also depend on a fully charged battery to spin the engine at the correct RPM and a clean intake filter so that cylinder fill is as best it can be. Another issue with compression tests on Diesel engines is that it's not adviseable to do a "wet" test as the danger the engine will run on the oil you put in the cylinder to see if it improves ring seal.

A leak down test is more time consuming to do but it will point you to a direction to focus on. (If you hear air in the exhaust, you look to valve issues and so on) Also, most engine manufactures publish leakdown percentages that will exstablish a pass/fail value for your claim.

You may also want to ask if they did or are planning on doing a coolant combustion gas and oil analisys to rule out mechanical failure or contamination. If you popped a head gasket you would expect to find combustion gas in the coolant or if you have abnormal ring/cylinder bore wear the results of the oil test would show that as long as you had some hours on the oil.

Best of luck with your case,

Tom

Hi Tom! Thanks for your feedback. To answer a few of your question, no they did not gave me the compression result except for saying that the 3 cylinders were down. My understanding is that the compression test was a basic test using a pressure gauge. We can almost eliminate valve leaks, because that would not create blow-by and would not explain the oil in the air intake. As for the rest of the test, I will let them decide what they want to do, as long as its on the warranty. Right now , what I want and need is my tractor as soon as possible so I can put the cab and the snowblower. I've got 4 driveways that I have to take care, so looking forward to having it back in my garage. I will try to find out the test result and what else they did and let you know.

 

[jenkinsph]

Henri88,

This repair process may take some time, I would check on a loaner tractor for your snow work before it gets bad. I wouldn't expect this to take less than three weeks to complete.

Good luck with the repairs and hope it all works out for you.

 

[Henri88]

Henri88,

This repair process may take some time, I would check on a loaner tractor for your snow work before it gets bad. I wouldn't expect this to take less than three weeks to complete.

Good luck with the repairs and hope it all works out for you.

Three weeks, yes, it sure looks that what were looking at. You are right, I cannot procrastinate anymore. Will have to look around. Thanks for the head-up. :thumbsup:

 

[Henri88]

:smiley_aafz: 30cm (12'') of snow in the forecast for tonight, and still no tractor. Out comes the good old scoop, if I can find it. :mur:

 

[jenkinsph]

Henri,

Rode one most of the day today, certainly loses its appeal after an hour or so. May have to look into a front blade for my GT.

 

[Henri88]

Update! Just spoke with the service manager. From what they saw, the rings in all three cylinders were seize and the cylinders were glaze. Usually, by experience, glaze cylinders on diesel engine is often cause when running the engine at cold temperature for an extended period of time. Unless the thermostat is stuck open, I can't really see what else it could be.:confused2: If you have any idea, let me know. Oh, an by the way, I don't baby it, it's a diesel and I usually operate it at pto rpm. I will definitely install a temperature gauge as soon as I get it. In the mean time, the good news is, they are installing a new short block in it. Should be ready by next week.:thumbsup::licking: Henri

 

[WilliamBos]

Great news!! Mother Deere footing the bill??

 

[grsthegreat]

Glad to hear there doing it under warranty.....nice guys.

Do you use a block heater for the winter??? i keep hearing pros and cons on these, and while i believe in them alot of people dont.

Wonder if running engine in severe cold conditions helped cause this or what???

they give you any ideas?

 

[Henri88]

Glad to hear there doing it under warranty.....nice guys.

Do you use a block heater for the winter??? i keep hearing pros and cons on these, and while i believe in them alot of people dont.

Wonder if running engine in severe cold conditions helped cause this or what???

they give you any ideas?

I do have a block heater but I never use it since my jd is always inside a heated garage. I will ask for the old thermostat and will make a few test on it. Oh and by the way, imho in cold weather, definitely use a block heater. All of are motorcoach had block heaters until they came out with the ''Espar heaters''.