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      02-25-2020, 04:59 AM   #276
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Drives: M2, Many e30's, 330ci, 335d
Join Date: May 2019
Location: SW Michigan

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Originally Posted by ddinse View Post
Having major smoking issues and a slight rear main oil leak. Pulled the dipstick while the engine was running and was greeted with a small shower of oil. Removed my catch can set up and went back to stock. Repeated dip stick test and no signs of crankcase pressure. A test drive in daylight tomorrow will tell me if the smoking issue is better. My CC was apparently much too small and was taking away the crankcase vacuum.
Your problem was likely due to your hoses being routed upwards. The inlet to the catch can needs to be downhill all the way to the catch can, or the oil can pool and cause a blockage, which will pressurize your crankcase.
2017 M2 LBB 6MT
CDV Delete/UCP/AutoSolutions Short Shifter/Fabspeed Sport Cat/GFB DV+/VRSF FMIC/VRSF CP/BM3
Shrunken Clown Nose/Debadge/Color Matched Spars & Reflectors/Various CF bits
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