I have a Buschur oil catch can set up on my car. Their is some smoke coming out the top of it. Like a exhaust smoke. Not a lot. Their isn't any smoke coming out the rear of the car like it would if it were a piston ring going bad or valve seal. It has me baffled. If it is only coming out of the catch can what could it be? It does it at idle first start up. Drove the car and doesn't have any signs of lost power. I will see if I can get a video up so you all know what I mean. But until then is their any idea what may be the problem? Thanks for the help and looking at my thread.

 

If you have the catch can with the breather filter on top, some escaping smoke is to be expected.
Normally you never see this because the lines go into the intake or manifold.
That is the difference between open loop and closed loop.

 

Ok I did a compression cheack. ( 190, 120, 120, 190 ) So it maybe my head gasket or rings.

 

With my compression being like that would that cause my catch can to be a little smoky?

 

should vary that much cylinder to cylinder........pull a plug and squirt a little oil in the cylinder then re-test see if your readings are better, if so then u can say its ur rings

 

*shouldnt

 

Blow by is most likely what you are seeing. (oil vapor from crankcase pressure getting past the rings)

It's pretty normal to see some on a hard pull, high rpm run. Your compression results look at little scary though, I'd do a wet compression test like evilEVO mentioned above.