tford

Weather in Bay Area is beautiful today, summer like. Decided to take the GT3 RS out for a spin. Still breaking it in (only 750 miles), but when I got home, it had a nastier than normal smell--liked burnt popcorn. I popped the lid and when looking at the engine compartment, at the bottom right there was some smoke eminating for maybe 15 seconds and then was gone. I'm assuming the exhaust is heating something up? Any ideas? Just like burnt popcorn, my garage still smells like hell. Thx.

-tford

lowside67

Sounds like maybe rubber melting or something dripping on your hot exhaust... wait until it's all cooled down and take a look. The only other thing I can think of is brutally slipping your clutch to the point it spins and smokes?

Larry Cable

Sure it's not cosmoline on engine since it's so new? Wait till it cools and check for any fluid leaks down there ... Looks for any deposits on exhaust also...

911SLOW

Last night something was sleeping in the engine bay, today..


..RIP : )

Larry Cable

I still recall watching a 993tt catch fire @ button willow many years ago after it burst a coolant hose that subsequently dumped coolant onto a hot exhaust can .... Boom

I think it's probably some excess cosomline burning off a hot engine part since the car is so new ... ESP given the burnt popcorn description ... But definitely worth a check of hoses etc ...

aussie jimmy

maybe you put e-brake on in garage when brakes hot?

mklaskin

A 993 TT with a coolant hose? Oil?

tford

I went through the engine from top and bottom as best I could and didn't see any leaks, nor could I find the source. I ran the car again, and there was only a faint smell this time(similar to prior drives). Since I had no frickin' clue what cosmoline is, I had to look it up and it seems like that very well could be the issue. I'll continue to monitor, if it turns out to be something else, I'll report back. Thanks for the schooling.

mklaskin

Maybe a combination of hot exhaust and the catalytic converters getting broken in? I've had cats that give off a rotten egg-like odor as they get broken in. Typically, it's the platinum elements.

Larry Cable

Good point it's been a while ... Probably was oil or brake fluid ... Either way there were a bunch of people fire exts in hand running to put the back of the car out ...

My point really was to the OP to investigate properly just in case...

Larry Cable

Could be the new cats... Would they smoke externally though?

mooty

LOL, LARRY does funny sh*t to his cars, i tell you.

mklaskin

Yeah, good point. I don't know what could be causing the smoke...

Larry Cable

Was I not supposed to top up the GT3 with more oil for the cooling?

Oops!

Larry Cable

Got to be some foreign matter on the cats or exhaust ... And it camevfrom somewhere