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John Deere Tractors Discussion Forum
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Turbocharger Oil Pressure Line

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4010 Pride

09-20-2006 18:59:48




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Is it possible to run the oil supply line to a turbo on a 4010 from where the small "plugged hole" is at the bottom of the oil cooler? Is this enough pressure to push enough oil to the turbo?? Thanks.




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4010 Pride

09-20-2006 19:38:17




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 Re: Turbocharger Oil Pressure Line in reply to 4010 Pride, 09-20-2006 18:59:48  
Bob, thanks for the info. I saw a 4010 with a 4320 turbo on it and the "small plug" that faces you as you are looking at the oil cooler on the side of the tractor was where he was getting oil pressure from. If it was not the "small plug" it was withing an inch or so from that vicinity. You can see the oil cooler breakdown on www.johndeereparts.com in the on-line parts breakdown. Thanks again. You may very well be correct.

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Bob

09-20-2006 19:54:33




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 Re: Turbocharger Oil Pressure Line in reply to 4010 Pride, 09-20-2006 19:38:17  
As you say, perhaps there are 2 plugs... one into coolant, and one into oil.

If one of the plugs goes into oil, is that passage before or AFTER the oil passes through the cooler? I would think the cooled oil, even though probably not by too many degrees, would be what you'd want for the turbo.



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Bob

09-20-2006 19:06:36




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 Re: Turbocharger Oil Pressure Line in reply to 4010 Pride, 09-20-2006 18:59:48  
It's been a while since I was that up close and personal with a 4010, but isn't that plug at the bottom of the oil cooler a WATER drain, as the cooler will retain coolant, 'cause it's bottom end is below the block drain?

Have you had the plug out to verify it's in the oil area, and not the water (coolant) area???

Why not source the turbo oil from one of the plugs in the main oil gallery, at the side of the engine?

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Bob

09-20-2006 19:06:30




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 Re: Turbocharger Oil Pressure Line in reply to 4010 Pride, 09-20-2006 18:59:48  
It's been a while since I was that up close and personal with a 4010, but isn't that plug at the bottom of the oil cooler a WATER drain, as the cooler will retain coolant, 'cause it's bottom end is below the block drain?

Have you had the plug out to verify it's in the oil area, and not the water (coolant) area???

Why not source the turbo oil from one of the plugs in the main oil gallery, at the side of the engine?

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msb

09-20-2006 19:46:23




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 Re: Turbocharger Oil Pressure Line in reply to Bob, 09-20-2006 19:06:30  
Bob is correct the plug in the oil cooler is a drain to drain the coolant out of the oil cooler since it has no other way to get out. Don't know what happened to my post , but I always used the front plug in the oil galley.Its usually the easiest to get out anyway and then M&W mounted an oil filter (that came in the later kits) just below the generator mounting bracket on the later turbo kits.



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4010 Pride

09-20-2006 19:57:00




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 Re: Turbocharger Oil Pressure Line in reply to msb, 09-20-2006 19:46:23  

MSB,Bob, thanks for the info. It all makes sense. Oil gallery, where are these plugs located in terms of engine location...left, right, top side, name something common that is close to it. Sorry for the lack of personal knowledge, this tractor is a "61, almost twice my age and there is still things I am not familiar with. Msb, I have the m&w oil filter setup, know exactly what you mean. I also have some of the intake plumbing. Thanks guys!!

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msb

09-20-2006 20:10:05




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 Re: Turbocharger Oil Pressure Line in reply to 4010 Pride, 09-20-2006 19:57:00  
The oil galley is a horizontal bore in the side of the block from front of the engine to the back.Its just above the engine rail on the right side of the engine.Your oil pressure sending unit is tapped into the top of it it at the rear of the engine.The oil galley is charged with lubricating oil from the oil pump and at every main bearing location a hole is bored in the block so the oil is then fed to each main bearing and from there the oil is pumped into the crankshaft at each rod bearing. The 7 bores to the main bearings are plugged with allen screws.Can't remember but takes close to 5/16" allen wrench to get them out.An allen wrench socket works best with a 3/8" extension and ratchet. A tractor that old and it may take a little heat to break the screw loose. Good luck.

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