Hey guys.

I've read heaps and heaps on here but just have a quick question and maybe someone has had the same experience. I have a 4 port manual swap (Lame I know lol), aem intake, catless, turboxs, bhr ignition, etc and it's been doing a weird thing. Sometimes it'll billow oil smoke and sometimes it wont. Either hot or cold. During pulls, after pulls, sitting in traffic, you name it. The weird part is that it'll do it, then quit right after. I could be cruising, do a pull, and it does it. Then couple mins later I'll give it beans and it doesn't smoke.. Then later on driving normally it billows again LOL... bit of a head scratcher. It's not burping through the intake unless its so perfectly going through that it leaves no residue.. Also if it were control rings wouldn't it do it constantly and primarily when I decel? Could it be bad oil? Oil injectors? Just wondering if it could be anything else other than burping or control rings cause that's the main things I've seen mentioned.

Thanks.

 

Hello, I have a very similar problem on my S2. Could you solve it?

 

It's not a cheap or easy thing to verify, but wandering oil control ring is a theory.

I had a diesel once that wouldn't burn a drop, then would suddenly chug two quarts over a very short amount of time. It was never visible in the exhaust, but the diesel would have happily just eaten it like fuel without a hiccup. I believe the problem was an oil control ring that got spinning. While it was clocked in a position away from the gap in the next ring, it would be fine. But when the ring gaps lined up, it was lunch time. A rotary is a gas engine, so it would smoke in this situation rather than gain a few unnoticeable hp, but I'm not sure how a rotary would behave... Seems the ring would want to wander more quickly since the friction from the adjacent plate would be in the direction of travel rather than perpendicular to it like in a piston engine. This seems to check out in the described symptoms since it's pretty suddenly there and then just as suddenly not. What's the frequency between events?

 

Instantly thought it was burbing through intake till I read that.
How are your lines from the oil filler neck and the one down by the dipstick (2006 on) set up?

 

If the smoke is blue and the oil consumption has increased, it is possible that it is burning in the combustion chamber, the easiest theory if you do not have CEL is that the problem is the oil control rings (a rebuild is necessary), but it could also be a problem with the vacuum tubes, muf sensor, OMP, etc. I recommend you follow the procedure to diagnose faults in the workshop manual, it is a step-by-step guide, which generally begins with searching for error codes with the OBD port and then continues inspecting other parts, leaving behind the most complicated and expensive repairs. for the end. I downloaded the workshop manual to diagnose the same fault for the S2 and it helped me a lot, it is here in the forum.