First Turbo Tractor, Teach Me, Help Select Best Attachments

[Gary Fowler]

You would think the air would have to pass the turbo fan to move it.
The engine would block the outlet of the turbo,,,
air in,, no air out??

anyways,, I never trailer,, 100% of use is on my property,, or right next door at the daughters,,,

I suppose that if you had exhaust valves open AND intake valves open (different cylinders) that the turbo would spin if you forced air thru the exhaust pipe. Would it spin enough to damage the bearings on a short 20 or less mile trip, MAYBE. Most tractors with a vertical exhaust have the outlet cut to a 45 degree or more and turned to the side so I don't think those would force any air down the exhaust. If yours is bent forward then perhaps it would be best to cover it.

 

[Gary Fowler]

I haven't owned a turbo tractor since the 9000 Ford from back in the 70's but if I recall the only thing that we had to do was let it cool down/spool down for a couple minutes. Even if you haven't been working it hard, reduce to an idle and let it idle for a minute or so before shutting down. Also want to let it warm up a bit even in summer time before hitting even near full throttle. After it warms up, you can run at just about any speed that produces enough power to do the job but for PTO work, you always want to run at or near 540 PTO speed for best work.

This is true for a lawnmower also, your best cut is Wide Open Throttle (WOT). My neighbor lady was telling me one day that she doesn't like to run WOT on her zero turn mower because it goes too fast. I had to tell her about WOT, hydraulic oil flow and blade tip speeds and that you need to run WOT to get the blade tip speeds high so it cuts clean and to use the control handles to reduce the speed, similar to how you would do on your HST tractors.

 

[LD1]

You would think the air would have to pass the turbo fan to move it.
The engine would block the outlet of the turbo,,,
air in,, no air out??

anyways,, I never trailer,, 100% of use is on my property,, or right next door at the daughters,,,

It will use the exhaust impeller as the fan and spin it backwards.

Going backwards isnt the issue. The issue is its spinning without lube being pumped through it.

 

[LD1]

Like I said, I have never had issues. Just heard it here a few times on TBN about the potential for it to happen. For me, its not any harder to just back the tractor on the trailer and not chance it, beecause I do trailer the machine probably 1500 miles in total a year.

 

[RickB]

This discussion has been going on far longer than TBN has existed. There is no consensus, except for when hauling somebody else's tractor the owner's wishes need to be heeded.

File this next to the oil and filter threads.

 

[pmsmechanic]

When turbo's first came out on ag tractors there were a few replaced from being trailered without the exhaust covered. Even if the exhaust is facing the rear you can still get a draw of air through the engine, if both the exhaust and intake valves are open at the same time. There can be enough air movement to spin the turbo. No oil pressure and a spinning turbo is not a good combination.

 

[BrokeFarmerJohn]

This may be a dumb question but it's one I don't know the answer to so I will ask it. I have a 4320 and it's turboed, but it just sounds like a regular tractor, I always figured a turbo would whine a little. Is that due to the size of the turbo and the speed it's spinning?

Trucks whine, pulling tractors whine but my little tractor does not.

Edit: this isn't my tractor but it's same model and sounds the same as mine.

It's got the 400cx loader which is auto leveling, that's a really nice feature. Mine has the 400x loader

Driving the John Deere 432 Cab (part 1 of 2) - YouTube

 

[CADplans]

I always figured a turbo would whine a little. Is that due to the size of the turbo and the speed it's spinning?
.

The JD I am getting has a HUGE muffler compared to the size of the turbo,,
maybe the muffler is absorbing the sound?
Also, my exhaust is directed down, and towards the front,,
much less noise gets to the operator,,,

Drive past someone,,, ask them what they hear,,,

,,, and,,, if you had the 1972 year model 4320,,, I would bet you would hear the turbo,,, :thumbsup:

 

[BrokeFarmerJohn]

The JD I am getting has a HUGE muffler compared to the size of the turbo,,
maybe the muffler is absorbing the sound?
Also, my exhaust is directed down, and towards the front,,
much less noise gets to the operator,,,

Drive past someone,,, ask them what they hear,,,

Your tractor and mine are very similar, only difference is age and HP





Edit: ok maybe there a little more different than I thought

 

[motownbrowne]

I think it might be because a turbo on a tractor only boosts the pressure of the intake air a small amount compared to a truck. Remember, these engines are designed to operate at full rated power continuously. If they boosted as much as a pickup they'd overheat.