Glad to hear you got it worked out : ) Thanks for the update. Nice to get feedback on how these things actually work out rather than "I did it!" and nothing more is every said about it.
I think you've ran the pipes into the catch can the wrong way? Cam cover goes in to the "in" and it looks like on yours its going into the "out" I maybe wrong
Suggestion, connect catch can input to the rocker-cover (which is what you have done correctly) and the output to the factory capped off vacuum port on the intake manifold pointing. Said vacuum port is close to the throttle body pointing towards the bulkhead. You appear to have fed that "output" to under the intake manifold using your transparent water hose, which you should be blocking IMO. This may be the route of your issue. Side note; the rocker cover gasket goes on dry with the exception of a tiny amount of gasket-snot at the very back and the front where the VANOS is. Emphasis on the Tiny part. All shown on the AutoDocs channel here on YT. That red shite will have found its way into your cylinder head as it's oozed outwards so undoubtedly done the same INWARDS - oil journals really really don't deal with rogue clumps of liquid silicon gasket maker well. Good luck with it all bud
Hi Daz! I did read about the other vacuum ports on the throttle body at the time. At the time I seen the problem as it was leaking vacuum and though might as well plug it all up so it doesn't. I was daily driving the car so I was really feeling the fuel costs. As another update to this set up I'm going to be getting rid of the catch can and putting a filter right on to the valve cover. Reason why is that they current set up ends with a 10mm hose. I think that it is restricting the crack case and is therefore just spitting the oil out and seal it can. The silicon on the gasket was a quick fix. It was leaking tones of oil and I need the car asap. The gasket is an ebay one which I've learn are not good compared to the BMW ones. I am looking at replacing it when I come to use the car more. In all sincerity thanks for your comment. I made this video as I wanted to make people more aware of issues that you can encounter with deleting the CCV. It really isn't a stick it in and forget about it job. Having other people inputs in the comment to how I could have done better is bound to help someone! Cheers for your comment!
No problem matey. Just to let you know that the vacuum you are seeing on the filler cap is quite normal when running a catch can. To understand why, you'll need to look into exactly how the stock CCV works and the purpose of the diaphragm. Hint; it "regulates" crankcase pressure. With no regulation, you'll see this negative pressure sucking it back down. Great news if you have the M54 with the weak oil scrapper rings, as it helps with that. The problem you actually face with a catch can isn't really this negative pressure at idle, it's what happens when you run out of the vacuum which will occur at high RPM (when the sucking assist from the intake is low and when crankcase positive pressure is at its highest and really wants to escape). This is what you experianced when the oil was forced past the gaskets and almost blew your rear crank seal out into your transmission bellhouse. If you want to use a catch can, the best advice one can give is to maintain that 19mm hose and try not to reduce it by much. Continue using the intake manifold port you are using as looking at the port I suggested earlier on my own M52.... yea, its not adequate - its far to small. With the larger diameter you should be able to transfer that high RPM crankcase pressure (when its at its peak) to breathe through the catch can and force the vapours into the intake that way, in theory. I'll be modifying my catch can to take CHUNKY hoses as I can't utilise the stock CCV due to supercharging. For a quick solution, yea just vent to atmosphere. This is a genuine approach, but not a long-term solution as that junk vapour will end up in the cabin. Also, the crankcase appreciates the negative pressure supplied by the intake ;). Hope this helps. Let me know if you need any further help. Cheers @@DriveShifty
@@DazHarkz90 Hi, what you write is very interesting... I have a 320i e93 with n43b20 engine that smokes white because the ccv that is inside the tappet cover is broken can I use a catch can to solve the problem and if so the pipe that goes to the aspiration block it? THANK YOU
@@AlanCantarutti Hi Alan, sorry to hear your CCV is knackered. Please do not take my advice as gospel, as the bulk of my knowledge comes from work on much older engines - namely the M10,20 and 30 era. I have had catch cans installed on M5# engines (like what Drive Shifty has) and I can conclude that unless you are utilising forced induction (supercharged or turbo) you do not "need" a catch can. The stock/OEM system is more than sufficient. Anyone who disagrees needs to simply reflect on how long the original one has lasted which will almost always be beyond the expected lifetime of the vehicle 10yrs+ 100kmiles+. People who seek a remedy with catch cans, me included, are often taking the cheapest way out, NOT the most effective which leads to a lot of problems and potentially damaging their engines. One needs to first gain a strong understanding of exactly what CCV valves do, Hint; it is not to just allow the crankcase to breathe - there is more to it across the rev/load range of the engine, before taking the steps seen in this video. My M52 is set to accept a supercharger hence this is my route but for my other cars (another M52 and an M50) that are NOT receiving forced induction I am ABSOLUTELY installing fresh OEM parts NOT a catch can. The best advice I can give in regards to your N43 is to replace the problematic part. Going any other route will inevitably be driven, mostly, by cost saving which is not a good enough reason. I'm very aware of how tempting those Chinese made cans on eBay are but they are worth their weight in used toilet paper. A catch can system is not a solution to an existing problem, only a performance upgrade to target very specific problems introduced when implementing other performance upgrades. The exception would be the M54 oil consumption issue which is put right with a catch can but in recent times there is now an even better solution... I hope this has helped
@@DriveShiftywhere would you recommend to move the catch can, ive been working on mine today. Got the crankcase hose going to the catch can in slot, got the dipstick tube on the out slot. And blocked off the rest of the air lines.
@@CrashoutLee Sorry for the late reply. The dipstick tube going to the outside of the catch can isn't right. That will closed off the hole engine and it won't be able to breather. Block off the dip stick and stick a filter on to the out going port of the catch can. As for where to put the catch can I never got a chance to play around with the set up due to not having the car on the road. For an update I am getting rid of the catch can and putting a filter on to the crank case breather. I'll be getting a 19mm filter so there will be no restrictions in the system as this was part of my issue
@@DriveShifty BMW made a cold weather version with a more insulated oil return tube to prevent it from getting clogged. Not only will that work better than the catch can, it would've been cheaper as well.
