Lamborghini R6 190 /Deutz Fahr Agroton 6190 dirty coolant and leak problem

[RaulP]

Hi there. I am having some issues with my 2013 Lamborghini R6 190 t4i (with adblue)
For some while, my coolant seems to disapear and it becomes more and more browny. I got this issue after I did some repairs to the AC system, more precisely I have refurbished the blower motors and took out the radiator under the seat and I cleaned it. It doesn't seem to leak under the cabin, but still, even if it did the coolant should not turn browny.
I bought the tractor brand new in 2014 and I've never changed the coolant.
Engine doens't overheat, it pulls just fine, everything else it's just ok. The browny coolant doenst seem to be greasy so I guess it's not oil. Adblue colour is fine, so the heater insinde it doesnt leak.
Tractor has only 3000 hours, it was never overheated or abused,me, my brother and my father are the only ones who work with it. Do you know what could be the problem?
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[feilding]

Why hasn't the coolant been changed, I replace my Deutz m620 coolant every 1000 hrs never any longer, I would drain coolant and flush out. and do it again after a few hrs. And see what happens, how strong is the antifreeze mixture, I never use less than 50%.

 

[RaulP]

I will. But still, I don't see how this will solve my issue.

 

[Timbo]

I will. But still, I don't see how this will solve my issue.

The addictive package has broken down some while ago and what you're now seeing is corrossion (rust) from the waterways of the block and head.

 

[RaulP]

The addictive package has broken down some while ago and what you're now seeing is corrossion (rust) from the waterways of the block and head.

What are the addictive packages?

 

[Timbo]

What are the addictive packages?

Various corrosion inhibitors water conditioners / softeners, surface tension reducers , plus the actual antifreeze element etc etc

 

[agrimax]

If the coolant level is dropping, there must be a leak somewhere. If there's nothing visible, I'd be thinking the head gasket needs checking out.

 

[RaulP]

If the coolant level is dropping, there must be a leak somewhere. If there's nothing visible, I'd be thinking the head gasket needs checking out.

That is my biggest fear.

 

[agrimax]

I'd suggest a pressure tester on the header tank...

 

[RaulP]

This is how it looks a year later, it still dissapears but not so fast. What the hell is that brown thing? it's in the expansion tank, on the inner walls.

 

[daveydiesel1]

Its corrosion, im afraid ul never get rid of it as once it has a rusty internal surfaces it wont stop rusting if im correct. Itl also start to clog your radiator. In the past wev put soda crystals with straight water and run her for a few hours to help clean out the system. But its deffinitely caused by not changing the antifreeze. We do our tractors every year

 

[RaulP]

Its corrosion, im afraid ul never get rid of it as once it has a rusty internal surfaces it wont stop rusting if im correct. Itl also start to clog your radiator. In the past wev put soda crystals with straight water and run her for a few hours to help clean out the system. But its deffinitely caused by not changing the antifreeze. We do our tractors every year

But I've change it last year, and still, why does the level drop? I have an Agrotron 105 mk2 from 2000 and the coolant looks just fine...never changed it

 

[daveydiesel1]

Itl either be a internal leak or a small hole dripping onto the top of the engine and being evaporated, iv had that before. Well changing coolant is part of regular maintenance

 

[RaulP]

FOUND THE PROBLEM

It seems my headgasket is most likely blown, last night I've cleaned the cooling system and revved the engine and water came out the expansion tank cap. I didnt realised why until the morning...I wanted to clean the cooling system again and saw there was no water in the cooling system. We filled it up and wanted to start the engine, but LUCKILY my father wanted to check the oil level. When the took the dipstick water started coming out everywhere
The engine is Deutz 6.1 TCD with no Egr system or gas cooling so most likely my gasket is blown.
On top of all, when I've took the turbo down I saw the adblue injector was covered with crystalised adblue (it had many errors in the past).
Now, I just hope my engine is not ruined and I will get it only with a headgasket replacement....

 

[daveydiesel1]

FOUND THE PROBLEM

It seems my headgasket is most likely blown, last night I've cleaned the cooling system and revved the engine and water came out the expansion tank cap. I didnt realised why until the morning...I wanted to clean the cooling system again and saw there was no water in the cooling system. We filled it up and wanted to start the engine, but LUCKILY my father wanted to check the oil level. When the took the dipstick water started coming out everywhere
The engine is Deutz 6.1 TCD with no Egr system or gas cooling so most likely my gasket is blown.
On top of all, when I've took the turbo down I saw the adblue injector was covered with crystalised adblue (it had many errors in the past).
Now, I just hope my engine is not ruined and I will get it only with a headgasket replacement....

If it was me id put a new oil pump in her. I had problems in the past when water got into the sump which led to a pump failure down the line, had to do complete engine overhaul so i think a new pump would be a wise investment just incase your original 1 would be damaged

 

[Timbo]

FOUND THE PROBLEM

It seems my headgasket is most likely blown, last night I've cleaned the cooling system and revved the engine and water came out the expansion tank cap. I didnt realised why until the morning...I wanted to clean the cooling system again and saw there was no water in the cooling system. We filled it up and wanted to start the engine, but LUCKILY my father wanted to check the oil level. When the took the dipstick water started coming out everywhere
The engine is Deutz 6.1 TCD with no Egr system or gas cooling so most likely my gasket is blown.
On top of all, when I've took the turbo down I saw the adblue injector was covered with crystalised adblue (it had many errors in the past).
Now, I just hope my engine is not ruined and I will get it only with a headgasket replacement....

If you have combustion gasses bubbling in the expansion tank AND water in the oil, it could be more than the HG. :-s

 

[RaulP]

If you have combustion gasses bubbling in the expansion tank AND water in the oil, it could be more than the HG. :-s

More like what? I dont know if there was combustion gases. I think it was a small crack in the hg and now because of the cleaning substances the crack became bigger

 

[Cowabunga]

I believe that these engines have a water/oil cooler that may be prone to internal leakage between the two fluids. In this case though, I would expect more serious signs of fluid contamination. So it might be the head gasket. You can buy testers for the coolant that will indicate whether combustion gases are contaminating it.

 

[laich]

I have seen this problem, with the adblue before. The cause , was that the owner, was ploughing, with engine running at 1100rpm just like he did in his old Agrotron 150. Exhaust gases were not hot enough, causing the crystallization. I

We used to chip out as much as we could, then give it a good roast up , on the dyno, the go in with Deutz Serdia and carry out a regen .

We got the driver to go down a gear or 2 and keep the revs above 1500 rpm.

Still get the same problem on new Case tractors, with older drivers.

Another common problem , with adblue, was corrosio of the wires/terminals, at the back of the fusebox, fotr the adblue.

Or the little pencil filter , inside the supply line to the pump , becoming blocked and causing pump pressure faults.

 

[RaulP]

I have seen this problem, with the adblue before. The cause , was that the owner, was ploughing, with engine running at 1100rpm just like he did in his old Agrotron 150. Exhaust gases were not hot enough, causing the crystallization. I

We used to chip out as much as we could, then give it a good roast up , on the dyno, the go in with Deutz Serdia and carry out a regen .

We got the driver to go down a gear or 2 and keep the revs above 1500 rpm.

Still get the same problem on new Case tractors, with older drivers.

Another common problem , with adblue, was corrosio of the wires/terminals, at the back of the fusebox, fotr the adblue.

Or the little pencil filter , inside the supply line to the pump , becoming blocked and causing pump pressure faults.

I never run my tractor at low rpm when ploughing or doing heavy stuff. A couple of years a go the tractor started regenerating but my father, he didn't know what was happening so he shut the engine off