New sound and stink coming from engine, what now?

[North Idaho Wolfman]

That hose being off wouldn't hurt the turbo or engine because it's air before the filter.
The upside down gauge does not matter, it's not a water trap, it's a vacuum gauge and nothing more.


Pull the intake hose off at the turbo look at the input impeller, then spin the impeller by hand, to should spin easy, and fast and free of any noise.
Also the impeller should also have no movement in or out or side to side.

 

[#40Fan]

It was this guy, just laying there not connected.

Like Wolf said, you're good! Any animal would have to get past the air filters and you said that they were golden too.

 

[D2Cat]

$600 for an ihi turbo from here is more like it
Turbo

I'll have to get the tractor in the garage in the next couple of weeks a take it out to see what's going on.

If it is the turbo, I would assume the $600 replacement would be about what it costs to have it rebuilt?

Do you have any rebuilder of turbos down your way? What's your zip, or what city you near? There is a shop in Iola, Ks. that rebuilds turbos. They are good, reasonable priced and been in business for quite a few years. Also have a shop in St. Joe, Mo.

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[McMXi]

That hose being off wouldn't hurt the turbo or engine because it's air before the filter.
The upside down gauge does not matter, it's not a water trap, it's a vacuum gauge and nothing more.


Pull the intake hose off at the turbo look at the input impeller, then spin the impeller by hand, to should spin easy, and fast and free of any noise.
Also the impeller should also have no movement in or out or side to side.

That extra intake hose is odd. I don't have that on the MX so not sure why the L6060 has it. Clearly rodents aren't getting to the turbo from the inlet or exhaust side. The DPF really attenuates turbo sound, which is very apparent when you run a straight pipe from the turbo back.

 

[#40Fan]

I finally went back and listened to the videos and I don't think it is a turbo issue. If it was that bad, it would stay bad. It sounds a whole lot like a plugged exhaust would. How it fixes itself is interesting (if that is what it is). Since you do have a DPF, I'm going to say to look there after a quick inspection of the turbo (pull inlet hose and give the shaft a wiggle). Post a video or pics of the compressor wheel when you do.

 

[mdhughes]

That sounds like my Cummins when the exhaust brake is on. I'm wondering if the turbo isn't spinning and causing back pressure like an exhaust brake does. I can't figure out why it would start spinning after it has been run for awhile.

Like Wolfman said, see if you can spin the compressor blades when the engine is cold.