JD 7130 engine failure at 4600 hours

[Shadow_storm56]

So the JD 7130 6 cylinder model I have has suddenly started substantially losing power..... does have some blowby but not an unsusal amount for 4000+ hours of hard work. Boost PSI is 10-11 at full load which seems low to me... Is the turbo bad? Or are the rings bad or somthing else?

Deere just usually wants to sell new vs fix anything so I am hoping I find a stiff turbo or somthing and don't have to send it away.

I'm not sure what boost pressure I should have... all I know is when we bought this used white 2-105 and put it on our chisel plow it pulled it decent but the deere was stronger.... now the white is substantially stronger than the deere and the whites turbo actually is weak.

 

[North Idaho Wolfman]

Warning: Lame canned answer ahead!
You would need to do a compression test, and find specs on boost pressure.

 

[Shadow_storm56]

Warning: Lame canned answer ahead!
You would need to do a compression test, and find specs on boost pressure.

I'm trying to find specs on boost pressure thus the post . Chat GBT says it should be 20 PSI of boost not 10. I also never have done a compression test on a diesel

 

[woodman55]

Could be as simple as a plugged air filter, or a collapsing air intake hose.

 

[BAP]

Have you tried posting this question on a John Deere forum or a JD Facebook group? You have a better chance of finding more answers there than here because you have people that know the brand

 

[Shadow_storm56]

Have you tried posting this question on a John Deere forum or a JD Facebook group? You have a better chance of finding more answers there than here because you have people that know the brand

Yes no response I did both

 

[Shadow_storm56]

Could be as simple as a plugged air filter, or a collapsing air intake hose.

Unfortunately it's not that its also not a stiff turbo. Could be intercooler restriction maybe

 

[North Idaho Wolfman]

Is it a standard or Premium model?

Have all three fuel filters been changed?
Has the vent in the fuel cap been cleaned?
Any codes or lights on, on the dash?

 

[Shadow_storm56]

Is it a standard or Premium model?

Have all three fuel filters been changed?
Has the vent in the fuel cap been cleaned?
Any codes or lights on, on the dash?

Is it a standard or Premium model?

Have all three fuel filters been changed?
Has the vent in the fuel cap been cleaned?
Any codes or lights on, on the dash?

It's the standard model and 3 fuel filters? I only ever knew of 2 but maybe the premium is different? The tank isn't under vaccume so I'd say the vents fine.

There is no dash lights on and this model dosen't show codes on the dash. Engine temp goes up sometimes at idle too and it's not intentionally in limp as when it does that the little light under the steering wheel flashes, usually that's when there's any water in the fuel bowl at the bottom of the 1 filter.

 

[North Idaho Wolfman]

It's the standard model and 3 fuel filters? I only ever knew of 2 but maybe the premium is different? The tank isn't under vaccume so I'd say the vents fine.

There is no dash lights on and this model dosen't show codes on the dash. Engine temp goes up sometimes at idle too and it's not intentionally in limp as when it does that the little light under the steering wheel flashes, usually that's when there's any water in the fuel bowl at the bottom of the 1 filter.

Your right the dash does not show codes, but the glow plug indicator flashes where there is a code.

Let me dig around and see if I can get more info on the filters because i swore i read that the standard model had 3 filters too.

 

[BAP]

Is this you and the same tractor? If so, you didn’t mention in this thread that this tractor has bigger engine issues.

https://www.greentractortalk.com/threads/john-deere-7130-mystery-issues-continues-but-worse.232344/

 

[Shadow_storm56]

Is this you and the same tractor? If so, you didn’t mention in this thread that this tractor has bigger engine issues.

https://www.greentractortalk.com/threads/john-deere-7130-mystery-issues-continues-but-worse.232344/

Same tractor, didn't mention it because we sent it into the dealer and it passed all their tests even the dyno but still blowing a stream of air into the coolant. They were like welp seems fine and it literally has been 1400 hours of run time since that and there's been no change in that issue just that same stream of air. Only started losing power maybe a month ago. They won't do a head gasket if it passes every test except for the fact of the stream of air.

OH and it wasn't worse as far as the actual issue is concerned the heater core is partly plugged and the heat would work at high rpm when the pump was pushing hard.

 

[Shadow_storm56]

Your right the dash does not show codes, but the glow plug indicator flashes where there is a code.

Let me dig around and see if I can get more info on the filters because i swore i read that the standard model had 3 filters too.

Oh yea so no codes then oddly enough, if there's a 3rd filter it must be hidden or somthing because even when I order the filters they only send 2.

 

[BAP]

Time to find a new dealer to work on it.

 

[Shadow_storm56]

Time to find a new dealer to work on it.

They just want to sell you new is why, obviously it has to be an incredibly small failure in the head itself that is enough to send gas out but not send water back in and dosen't get worse. I told many people and showed many people it and nobody has ever seen that issue not lead to a failure right away. Passes leak down and compression tests although I suspect now compression must be down somewhere

I suspect what's going on that caused power loss is theres bad rings and the boost is basically blowing strait through. I don't have a dyno to load test it stationary to really test the blowby although I do have a big water pump hmm. Just need to see if my crank vent is like an air jet under load. Could also be the main fuel pump or a bad valve... many possibilities.

 

[Shadow_storm56]

If it gets replaced it'll probably be kubota, kubota is less "PRETTY" but so much better made. More steel and less broken sensors.

 

[Daren Todd]

Could be as simple as a plugged air filter, or a collapsing air intake hose.

Or a cracked boot on one of the intercooler lines.

JD uses rubber sleeves and clamps to attach the steel lines that run from the turbo to the intercooler, and from the intercooler to the intake manifold.

So four rubber couplers. If one of those couplers has a crack, you'll experience a dramatic drop in boost pressure.

 

[Shadow_storm56]

Or a cracked boot on one of the intercooler lines.

JD uses rubber sleeves and clamps to attach the steel lines that run from the turbo to the intercooler, and from the intercooler to the intake manifold.

So four rubber couplers. If one of those couplers has a crack, you'll experience a dramatic drop in boost pressure.

I didn't see anything when I was looking but it's possible.

 

[Daren Todd]

They just want to sell you new is why, obviously it has to be an incredibly small failure in the head itself that is enough to send gas out but not send water back in and dosen't get worse. I told many people and showed many people it and nobody has ever seen that issue not lead to a failure right away. Passes leak down and compression tests although I suspect now compression must be down somewhere

I suspect what's going on that caused power loss is theres bad rings and the boost is basically blowing strait through. I don't have a dyno to load test it stationary to really test the blowby although I do have a big water pump hmm. Just need to see if my crank vent is like an air jet under load. Could also be the main fuel pump or a bad valve... many possibilities.

Get some John Deere break in oil. Change the oil and filter. And fill to capacity with the break in oil. Then put that baby under an 80% load. It will re-seat the rings.

Honestly, at only 4,000 hours, I would be ruling out all the stupid simple stuff first before jumping to an engine issue.

That engines just getting broken in. The only time I've run into head issues with JD 6 cylinders is if they've been hydrolocked or over heated really badly.

Ive never had to have a ring job done on one with 4,000 hours.

I've replaced turbos on them at 4,000 hours.
Ive had to replace the rubber sleeves on the intercooler lines do to loss of boost pressure.

I once had to pull on intercooler and take it to a radiator shop and have it repaired because it had a hole in it.

 

[Shadow_storm56]

Get some John Deere break in oil. Change the oil and filter. And fill to capacity with the break in oil. Then put that baby under an 80% load. It will re-seat the rings.

Honestly, at only 4,000 hours, I would be ruling out all the stupid simple stuff first before jumping to an engine issue.

That engines just getting broken in. The only time I've run into head issues with JD 6 cylinders is if they've been hydrolocked or over heated really badly.

Ive never had to have a ring job done on one with 4,000 hours.

I've replaced turbos on them at 4,000 hours.
Ive had to replace the rubber sleeves on the intercooler lines do to loss of boost pressure.

I once had to pull on intercooler and take it to a radiator shop and have it repaired because it had a hole in it.

Well I don't think it's been over heated badly but I'm not the only driver of it either. It's going into the shop again and hopefully it's simple things... also I know lol I have a 2350 with 11,000 hours going strong.... that being said I did have a 5083EN that the trans blew at 1700 hours... well fell apart so who knows.

It's older before all of the dumb sensors so if it is rings I'd probably have it rebuilt.