BMW Forums : BimmerForums banner

1 - 1 of 1 Posts

2 Posts
Discussion Starter #1
Hi all,

I recently rebuilt my N57S engine after failure with all new internal parts. I put everything together and I have blow-by gas coming out of oil cap and out of dipstick. There is pressure in the crankcase. There is no gas coming out of exhaust which makes me believe that an engine issue is out of discussion. I have removed the breather valve and there is minimal, if any, gas coming out of the pipe. Do I have clogged crankcase ventilation?

video with blow-by coming out of distick

video with blow-by coming out of breather valve

Any advise appreciated
1 - 1 of 1 Posts