R56 what is this in my CC?
#1
what is this in my CC?
Did a rebuild and added the a catch can on the valve cover to intake hose. I am catching this fluid in the catch can, and it is getting worse? Oil is clean and looks good with no leaks, coolant is full with no signs of exhaust gases/no excess pressure, compression is good and even all across the cylinders, rechecked timing and it is good? As this gets worse, it's starting to have rough running issues, no codes? Spark plugs are clean, and if anything, I might be concerned it is running lean? Coolant is green, and there are no fluids this color, and it has an awful smell, almost like the old safety clean carburetor cleaner that use to come in the yellow 5 gallon buckets? this is the crazy part, it looks to be blowing out of the turbo intake into the catch can, as the line out of the PCV/valve cover looks to be dry, and there is definitely fluid at the turbo/intake hose. Boost side of turbo is dry. I am experiencing some turbo flutter, also with a stage 2 tune
Last edited by 2008MiniS; 11-06-2018 at 09:29 AM.
#2
Your OCC is on which "intake" --- manifold or turbo (assuming N14)? With oil in the turbo's fresh air inlet and a dry PCV port, there's probably positive pressure in the crankcase. Could also be a shot turbo --- is there any "wobble" on the compressor wheel? Should be ZERO wobble --- any direction. With engine idling, try unseating the dipstick --- engine idle should get "rough" and air should flow into the dipstick tube. Same test for the oil fill cap.
What did your "rebuild" consist of? Old valve stem seals can cause positive crankcase pressure, so can a bad PCV in the valve cover.
Your OCC fluid looks normal for the manifold port --- lotsa condensation and a little oil. OCC fluid from the turbo port is typically much lower in quantity, compared to the manifold port.
What did your "rebuild" consist of? Old valve stem seals can cause positive crankcase pressure, so can a bad PCV in the valve cover.
Your OCC fluid looks normal for the manifold port --- lotsa condensation and a little oil. OCC fluid from the turbo port is typically much lower in quantity, compared to the manifold port.
#3
Your OCC is on which "intake" --- manifold or turbo (assuming N14)? With oil in the turbo's fresh air inlet and a dry PCV port, there's probably positive pressure in the crankcase. Could also be a shot turbo --- is there any "wobble" on the compressor wheel? Should be ZERO wobble --- any direction. With engine idling, try unseating the dipstick --- engine idle should get "rough" and air should flow into the dipstick tube. Same test for the oil fill cap.
What did your "rebuild" consist of? Old valve stem seals can cause positive crankcase pressure, so can a bad PCV in the valve cover.
Your OCC fluid looks normal for the manifold port --- lots a condensation and a little oil. OCC fluid from the turbo port is typically much lower in quantity, compared to the manifold port.
What did your "rebuild" consist of? Old valve stem seals can cause positive crankcase pressure, so can a bad PCV in the valve cover.
Your OCC fluid looks normal for the manifold port --- lots a condensation and a little oil. OCC fluid from the turbo port is typically much lower in quantity, compared to the manifold port.
#4
OK, so after some looking around, this is exactly what is normal to catch in the catch can! so, what got in my intake probably was from the CC getting too full. The weather is all over right now, so the water vapor really has increased probably. Scary to think that crap is getting blown back into the intake? Now, just to figure out why it started to run rough? Gonna try some one step colder plugs that I should probably be using anyway? Then chasing a ghost?
https://www.northamericanmotoring.co...cs-tuning.html
https://www.northamericanmotoring.co...cs-tuning.html
#5
N14, Back port on valve cover to intake manifold is capped off. This is through the PCV to turbo intake hose. New JTMC S42 turbo in April with all new oil lines, new rings, bearings, head removed/checked, and cleaned with new seals. New HPFP, New injectors/coils, and valve cover. New timing chain, solenoid. No excess crankcase pressure. I suppose the cc was getting a little over 3/4 full and maybe it was splashing around and got into the intake hose? I've just been trying to figure out where all this liquid is coming from? It's non-flammable whatever it is, and no signs of anything like this anywhere in the cylinder head or valve cover.
A: It isn't --- pressure is building in the crankcase causing oil to be forced thru the turbo bearings and into the compressor.
This can be confirmed by inspecting the PCV to turbo hose (OCC output) --- if it's dry and there's still oil in the turbo air inlet, where else can oil be coming from?
#6
Q: If your back port to intake manifold is capped off, where is the crankcase getting it vacuum?
A: It isn't --- pressure is building in the crankcase causing oil to be forced thru the turbo bearings and into the compressor.
This can be confirmed by inspecting the PCV to turbo hose (OCC output) --- if it's dry and there's still oil in the turbo air inlet, where else can oil be coming from?
A: It isn't --- pressure is building in the crankcase causing oil to be forced thru the turbo bearings and into the compressor.
This can be confirmed by inspecting the PCV to turbo hose (OCC output) --- if it's dry and there's still oil in the turbo air inlet, where else can oil be coming from?
#7
There is an awful lot of write-ups in here and other forums about blocking the rear port to intake manifold off, and it was recommended by a popular vendor in here to do along with my modifications. Heck the dealer knew exactly what I was doing when I ordered the caps.
I mentioned, i jumped the gun on the fluid in my intake hose, I believe it was from the cc being full and it made it's way into the turbo intake hose. It was the same fluid in the cc, which is mostly water. I confirmed this with a turbo rebuilder, that there is no way for coolant to come from the turbo into the intake(which is kind what i was thinking, since the turbo would be sucking in air, not pushing it back out). I believe the rough running is a result of my ebay vanos solenoid, or a faulty sensor, and it just happens to not be throwing a code. It is doing something very similar to when my solenoid failed before. It starts up fine cold, but starts running rough as it warms, because the timing isn't changing like it should. I just panicked when I keep seeing how much the catch can actually catches. Further research points to this being normal, especially this time of year. if i had excessive crankcase pressure, it would most certainly be blowing gaskets, which is why the engine was rebuilt in the first place. the rings were shot.
I mentioned, i jumped the gun on the fluid in my intake hose, I believe it was from the cc being full and it made it's way into the turbo intake hose. It was the same fluid in the cc, which is mostly water. I confirmed this with a turbo rebuilder, that there is no way for coolant to come from the turbo into the intake(which is kind what i was thinking, since the turbo would be sucking in air, not pushing it back out). I believe the rough running is a result of my ebay vanos solenoid, or a faulty sensor, and it just happens to not be throwing a code. It is doing something very similar to when my solenoid failed before. It starts up fine cold, but starts running rough as it warms, because the timing isn't changing like it should. I just panicked when I keep seeing how much the catch can actually catches. Further research points to this being normal, especially this time of year. if i had excessive crankcase pressure, it would most certainly be blowing gaskets, which is why the engine was rebuilt in the first place. the rings were shot.
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#8
#10
They can get pretty nasty, this was pulled from catch cans in a couple MINIs we have here for the ad.
https://www.northamericanmotoring.co...cs-tuning.html
https://www.northamericanmotoring.co...cs-tuning.html
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2008MiniS (11-08-2018)
#11
They can get pretty nasty, this was pulled from catch cans in a couple MINIs we have here for the ad.
https://www.northamericanmotoring.co...cs-tuning.html
https://www.northamericanmotoring.co...cs-tuning.html
#12
Ok, that pic above is normal, but it was mixed up when we poured it in, if it settles it gets the water and oil look.
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Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
MINI Guru/ MINI Owner Since 2004 | NEW Lifetime Part Replacement | Local Pickup
Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172