Lots of smoke after installing used exhaust
 

People-

I don't think its anything more than condensation from the car sitting with an open y-pipe, however I'm parking the car and asking here to see if I should be concerned before making a fatal error.

I purchased a used exhaust from Tim (mufflex 3.5"), removed old exhaust at y-pipe, realized the central pipe needed to be shortened, had central pipe shortened, car sat for two weeks with open y-pipe, finally installed exhaust yesterday, started the car and it is smoking like crazy now. Even some smoke was coming from the passenger side near where block meets heads, but that has subsided after about 3 minutes of idling. The smoke, from the tailpipe, however, has not.

I took a video, can post it if need be, however I wanted to gain opinions on whether I should be concerned. There was some roughhousing with the y-pipe to get the old exhaust off, and the new one on, but nothing excessive, I think.

What say you, automotive sages of njfboa?

I lied, video is uploading now. Should I'll edit this post with the video when it's finished.

Video: https://vimeo.com/55206104

Possibly a mouse started to make a nest in the exhaust, my used headers had nests in 3 ports. If so it should burn off eventually

Video doesn't work. If the car ran fine before the exhaust swap, the its prob just a ton of moisture in the exhaust system. It could have a fair amount in the muffler and simply hasn't burned off yet. I assume you just changed everything after the y pipe right?

Also grease from your hands still burning off?

what color is the smoke? if it was something in the exhaust like a mouse nest I wonder why it was smoking from your engine bay also

Is the video still not working? Its working for me.

The smoke is greyish white, but now poofy like coolant if that makes sense. It ran for three minutes or so, you think that isn't long enough to burn off the moisture?

try this: http://vimeo.com/55206104

Any smell to it ? You running cats ?

Looks like my car when I run it in the morning.

Did you paint any part of the exhaust? Headers will smoke a lot if you apply fresh paint. As far as the engine bay smoke, as the previous post stated smell will narrow it down

Could be oil burning off, doesnt help u rev the piss out it right after u start it

No smell that I can ascertain, and yeah there are high flows from Mufllex on there. Same ones on there before. And Jim, there's no paint or Permatex I don't usually drive the car in the cold, so that is a possibility as well. Hmmm. It's a ton of smoke though. I don't know what to take from it, but my gut tells me its nothing. My mind and wallet, however, tell me to ask those more knowledgeable than me before concluding anything.

I don't think its just oil burning off either, because the smoke is coming out of the tailpipe, as opposed to off the pipes.

Car was warmed up at that point, but that highlights the fact I actually uploaded the wrong video. Here's the other: http://vimeo.com/55233246

Jake,

Is there a puddle at the end of the tailpipe?

I think it's fine. I just started mine and had the same thing and I think I it seems like a lot because its all coming out of the same pipe(it is a singe out right?).

You might have an exhaust leak which was why it was in the engine bay.

No puddle, however I have been working on it in the rain, so I may be wrong. I think I need to start it again and let it run. I'll check the coolant level before starting it to eliminate that variable, though. I don't see what else it can be besides moisture.

That's a very good point regarding the single outlet, I didn't think of that. The smoke coming from the engine bay was coming from lower than the flange, so I don't think that was exhaust related. Could more than likely be moisture related like the exhaust though.

When was the last time the engine ran for a while? Did the car sit?

The last two weeks we have seen a big variation in temps. I would say its just moisture in the exhaust and that you have no issue what so ever

Before that, it was Thanksgiving weekend, so about two or three weeks.

I hope so, just trying to gather possible ideas to look out for.

Got stuck at work till about 9 last night, hoping to get out earlier today and let it idle for a while and see if the smoke subsides after it gets up to temp.

Started her up today, no smoke. Zero.

Thanks guys, looks like my paranoia got the best of me. Car is running fantastic!

Congrats man, It sounded sick in the video.

Thanks man. It's insanely raspy. I love it.