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Old 1 Week Ago   #1
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Sad day for my t-jet

Hi,


today my Tjet 120hp started to smoke really badly from exhaust pipe.
The smoke is somehow white and it smells like burned rubber.


That would probably explain, why it was consuming so much oil - more and more..
From last week I had to refill 0,5 litre and the dipstick was near minimum today. I had it towed to garage even though the engine had full power.


I'm using KPE multiair oil, so the oil is the right one.


I'll find out (hopefully) tomorrow from garage what has failed.


I think I'm the first where t-jet actually failed.


What you guys think could be wrong ?


Best regards,
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Last edited by SlovenianGuy; 1 Week Ago at 16:51.
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Old 1 Week Ago   #2
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Re: Sad day for my t-jet

Quote Originally Posted by SlovenianGuy View Post
Hi,


today my Tjet 120hp started to smoke really badly from exhaust pipe.
The smoke is somehow white and it smells like burned rubber.


That would probably explain, why it was consuming so much oil - more and more..
From last week I had to refill 0,5 litre and the dipstick was near minimum today. I had it towed to garage even though the engine had full power.


I'm using KPE multiair oil, so the oil is the right one.


I'll find out (hopefully) tomorrow from garage what has failed.


I think I'm the first where t-jet actually failed.


What you guys think could be wrong ?


Best regards,
Failed turbo perhaps?

Whatever the issue is, I really hope it gets sorted quickly and cheaply. Please keep us updated.
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Old 1 Week Ago   #3
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Re: Sad day for my t-jet

If you didn't feel any power loss, then it probably the turbo is gone and it burnt some oil and by that the white smoke and no pope
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Old 1 Week Ago   #4
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Re: Sad day for my t-jet

White smoke suggests oil is burning in the exhaust from the heat, not in the combustion chamber.
Turbo is most likely cause.
Replacement turbo and all should be well, although all that oil may have affected the catalyst and oxygen sensors, so may need them too.
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Old 6 Days Ago   #5
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Re: Sad day for my t-jet

Hi,
I have some more news from garage.


It turns out it's not a turbocharger at all. They found out my breather pipes were clogged.
So this time they will change oil sepparator too.
6 monthts ago my dipstick was thrown out by the engine, but breathers were fine then.


But I don't understand, how can that cause excessive white smoke in exhaust. And will it fix excessive oil consumption ?


Did anyone had problems with sepparator before ?
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Old 5 Days Ago   #6
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Re: Sad day for my t-jet

Yes, oil consumption can be caused by a blocked breather/oil separator.
The oil separator on the Bravo.. is a bit complicated with some baffles and some check valves.. pretty easy to clog up especially with extended oil change intervals, and inappropriate oil ( i am not talking about the oil that is in it now... but about what it had in it's life before this point)... not sure the multiair oil is right for the t-jet either..

If the breather is blocked the crank case will be pressurized and oil will be forced into the combustion chamber =>burned oil smoke, oil consumption.... in the long run, the oil will seize the piston rings =>engine failure.

I would recommend a compression test.
After replacing the oil separator, it could still smoke for a few hundreds km... oil will still be in a lot of places (intake manifold, vacuum lines, exhaust...etc)

I would personally use some engine flush in the next few oil changes, and replace it much sooner ~10k km, think /research about Motul X-clean.. have it in my engine now.


White smoke is usually an indicator of water, but can also be oil caked inside the exhaust, water condensate in the engine oil ( you would be surprised of how much water can go through an engine... in this time of the year... my aftermarket Chinese catch can can get about 300 ml water in about 1500-2000km in this time of the year)
White smoke could also be just morning condensation in the exhaust.
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Last edited by aurick86; 5 Days Ago at 21:15.
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Old 5 Days Ago   #7
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Re: Sad day for my t-jet

White smoke = water. Oil is giving more blue-ish smoke and there is a smell of burnt oil that can be smelled even if you are driving 50 meters behind such car.
One more fact, dipstick blown out of position, pressure in oil sump, and the pressure is coming from the pistons, in other words, head gasket is ruptured, that can be diagnosed by measuring compression in cylinders.
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Old 5 Days Ago   #8
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Re: Sad day for my t-jet

Quote Originally Posted by Vandu View Post
One more fact, dipstick blown out of position, pressure in oil sump, and the pressure is coming from the pistons, in other words, head gasket is ruptured, .....
Th could be the case but not necessarily: in a healthy engine some of the combustion pressure escapes past the piston rings into the oil sump /crank case. That is why there is a need for crankcase ventilation.
He said that the crank case oil separator/ breather was blocked .. so the crank case pressure had nowhere to go resulting in pressure pushing out the oil dip stick.
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Last edited by aurick86; 5 Days Ago at 09:31.
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Old 5 Days Ago   #9
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Re: Sad day for my t-jet

Isn't multiair oil too thin for the T-jet? I thought the T-jet was an older design.
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Old 5 Days Ago   #10
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Re: Sad day for my t-jet

Quote Originally Posted by JCarp16 View Post
Isn't multiair oil too thin for the T-jet? I thought the T-jet was an older design.
Originally they gave me Selenia K which was ACEA A3/B3, but after that the standard changed for T-jet - ACEA C3 standard was required and the recommended oil is Selenia K Pure Energy but it has Multiair designation on it.
Now I wonder, is there also KPE C3 available without multiair designation ?
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