URGENT i need your help guys

[Worgen44]

Merry Christmas to all of you and happy new year.
Guys i have a huge problem with the smoke coming out from oil dipstick it has been 4 years of fixing and results are same. The car is W204 2010 year 2.2 diesel om651 engine with single turbo after all the struggles and bunch of fixing i gave up and decided to buy a completely engine of 64 miles but with boughten engine the smoke is still coming out from dipstick please if anyone had any kind of experience With this i beg of you help me i cant put video here to show you for some reason thank you in advance

 

[Wighty]

So for 4 years you were fixing the old engine ?? I take it not using it during that time ?
The “new engine” has 64 miles on it now ?
Or the new engine is second hand and you have done 64 miles on it ?

 

[Worgen44]

Yes sir I was only fixing it not using it, as for 'new' engine it is second had and when I bought it had 64k miles on it we put the 64k mile engine in and the result is same

 

[tpn]

Merry Christmas to all of you and happy new year.
Guys i have a huge problem with the smoke coming out from oil dipstick it has been 4 years of fixing and results are same. The car is W204 2010 year 2.2 diesel om651 engine with single turbo after all the struggles and bunch of fixing i gave up and decided to buy a completely engine of 64 miles but with boughten engine the smoke is still coming out from dipstick please if anyone had any kind of experience With this i beg of you help me i cant put video here to show you for some reason thank you in advance

Did you replace the engine complete or did you transfer some of your old parts to it? That may be significant.
Is your car an automatic? and if so are you sure that the auto box is not overfilled? Just to be sure, to be sure.
Have you tested the Turbo and are you sure that there is not excessive back pressure in the exhaust system?
its reasonably obvious that the problem is not from the replacement engine, so must be from whatever you transferred from the old engine, or the existing exhaust system etc

 

[Larkone]

Blocked PCV valve perhaps

 

[star]

Do have any other problems apart from oil mist coming from the dipstick tube when it should always have a sealed dipstick in it when the engine is running?
You found a pot of gold if you found a secondhand 651 engine with only 64,000 miles on it. Some breakers will tell anything, most enginesfrom them have done around the 70k. If we buy a s/h engine, we get the reg no. Check the Mot history and then engine number.

 

[Mr Greedy]

My understanding of most engines is that the sump is a hollow chamber connected to and underneath the crank and pistons.

IF smoke from the dipstick is not normal for this engine (and I have no idea on that), then either there is excess pressure building up (hence blocked PCV is a good shout, so fit a new one for around £100), or my immediate thought was exhaust/combustion gas passing piston rings and pushing the pressure up in the sump. But on two engines it's less likely. But maybe not impossible.

As others suggested, start looking at components that have not been changed and are still from original car.

 

[Worgen44]

Did you replace the engine complete or did you transfer some of your old parts to it? That may be significant.
Is your car an automatic? and if so are you sure that the auto box is not overfilled? Just to be sure, to be sure.
Have you tested the Turbo and are you sure that there is not excessive back pressure in the exhaust system?
its reasonably obvious that the problem is not from the replacement engine, so must be from whatever you transferred from the old engine, or the existing exhaust system etc

The car gearbox is manual the boughten engine which we swapped had everything of its own only my own turbo stayed I even bought a replacement turbo and tested it but no use one thing we tried and let the smoke from dipstick disappear was blocking the air filter airway with hand and the smoke went out as soon as you lift your hand the smoke comes back from dipstick

 

[Worgen44]

Nothing

Do have any other problems apart from oil mist coming from the dipstick tube when it should always have a sealed dipstick in it when the engine is running?
You found a pot of gold if you found a secondhand 651 engine with only 64,000 miles on it. Some breakers will tell anything, most enginesfrom them have done around the 70k. If we buy a s/h engine, we get the reg no. Check the Mot history and then engine number.

at all no problems just huge smoke from dipstick

 

[Worgen44]

My understanding of most engines is that the sump is a hollow chamber connected to and underneath the crank and pistons.

IF smoke from the dipstick is not normal for this engine (and I have no idea on that), then either there is excess pressure building up (hence blocked PCV is a good shout, so fit a new one for around £100), or my immediate thought was exhaust/combustion gas passing piston rings and pushing the pressure up in the sump. But on two engines it's less likely. But maybe not impossible.

As others suggested, start looking at components that have not been changed and are still from original car.

Unfortunately we Changed (hence blocked PCV) that part 4 times bought brand new used one switched the diaphragm which sits inside circle thing not ripped or anything else we also did the calibration for 64k miled engine the current one so the engine can run smoothly but no luck only thing I have left from old engine is turbo which I have tested with another turbo too no luck this engine makes me wanna hang myself I swear but thank you for your beautiful answer sir

 

[Worgen44]

Blocked PCV valve perhaps

Changed 4 times the whole cover and the diaphragm inside of it nothing no changes

 

[Worgen44]

My understanding of most engines is that the sump is a hollow chamber connected to and underneath the crank and pistons.

IF smoke from the dipstick is not normal for this engine (and I have no idea on that), then either there is excess pressure building up (hence blocked PCV is a good shout, so fit a new one for around £100), or my immediate thought was exhaust/combustion gas passing piston rings and pushing the pressure up in the sump. But on two engines it's less likely. But maybe not impossible.

As others suggested, start looking at components that have not been changed and are still from original car.

Merry Christmas to all of you and happy new year.
Guys i have a huge problem with the smoke coming out from oil dipstick it has been 4 years of fixing and results are same. The car is W204 2010 year 2.2 diesel om651 engine with single turbo after all the struggles and bunch of fixing i gave up and decided to buy a completely engine of 64 miles but with boughten engine the smoke is still coming out from dipstick please if anyone had any kind of experience With this i beg of you help me i cant put video here to show you for some reason thank you in advance

Merry Christmas to all of you and happy new year.
Guys i have a huge problem with the smoke coming out from oil dipstick it has been 4 years of fixing and results are same. The car is W204 2010 year 2.2 diesel om651 engine with single turbo after all the struggles and bunch of fixing i gave up and decided to buy a completely engine of 64 miles but with boughten engine the smoke is still coming out from dipstick please if anyone had any kind of experience With this i beg of you help me i cant put video here to show you for some reason thank you in advance {EDIT:I managed to upload video just replied to my original post}

 

[SL63 Mark]

Engine doesn't sound right, crank case is pressurising. Worn bores, pistons, rings.

 

[mioba]

sounds like my VW T25 1.6 TD.

Did you replace the turbo feed and return line.
I hope you primed the turbo.

 

[Worgen44]

sounds like my VW T25 1.6 TD.

Did you replace the turbo feed and return line.
I hope you primed the turbo.

Yep still nothing

 

[Worgen44]

Engine doesn't sound right, crank case is pressurising. Worn bores, pistons, rings.

On second engine all of those are looking almost like brand new even find out all the measurements and they are fitting everything correctly and the way they should be

 

[tpn]

There has to be a common denominator as both engines are behaving exactly the same, so you were either very unfortunate to get an engine with the same problem or the problem is caused by what you did not change.
If as you say, every thing else was changed with the engine you are left with the intercooler, turbo, DPF, exhaust.

Turbo can cause it, intercooler should not. Back pressure in the exhaust/DPF can lead to crankcase pressure.
Has your diagnostics identified an exhaust pressure problem.

 

[Wighty]

Is the cooling system & thermostat working correctly ? Could this lead to overheating and oil burning ?
The above post by @tpn might be on to something, what are the odds that the same fault is on both engines .
So the fault may be something that’s not been replaced ?

 

[Worgen44]

There has to be a common denominator as both engines are behaving exactly the same, so you were either very unfortunate to get an engine with the same problem or the problem is caused by what you did not change.
If as you say, every thing else was changed with the engine you are left with the intercooler, turbo, DPF, exhaust.

Turbo can cause it, intercooler should not. Back pressure in the exhaust/DPF can lead to crankcase pressure.
Has your diagnostics identified an exhaust pressure problem.

Hello sir and thank you for that reason I have bought different working turbo changed it to test it nothing,as for DPF Made a custom pipe with nothing inside of it so the engine could empty it freely still nothing at this point I am thinking buying another engine I have 0 clues tried everything even checked the air vacuuming system all leads to nothing this has to be the garbagest engine in the history of Mercedes

 

[Worgen44]

Is the cooling system & thermostat working correctly ? Could this lead to overheating and oil burning ?
The above post by @tpn might be on to something, what are the odds that the same fault is on both engines .
So the fault may be something that’s not been replaced ?

Both work brilliantly it's like engine is against me