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Kirk
Samba Member
Joined: December 05, 2003
Posts: 5487
Location: North Texas
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 Posted: Tue Jan 24, 2012 3:49 pm Post subject: Severe burning smell after very short drive. |
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Okay, brief summary. F pipe on my exhaust was cracked, and not cracked, but pretty much shattered. I have a complete stock exhaust to redo/replace. Have some issues there I will cover in my Doodle thread. Heres the issue here. In order to drive Doodle, I replaced just the F pipe. New gaskets and new hardware, although not out of my German Supply hardware kit for the new exhaust. This is hardware store hardware. Problem is, I drove to work and its only 3 miles. When I got here, I thought my bus was on fire. Literally smelled of burning Sage Green westfalia to the point I jumped out fire extinquisher in hand. All I ended up with is a puzzled look from my coworkers as I crawled under the bus in my slacks.
What I found was smoke boiling from the F pipe I replaced, and the smell definately appears to be coming from there or nearby somewhere. I did use liberal amounts of Liquid Wrench to loosen the hardware, so I thought it was just that burning off. So I started it up after work yesterday, no smoke. Drove home, same thing, smoke. I drove it once more, little longer after that, same thing, more smoke. I'm not driving it again, and its not something "burning off" but it does smell like somethings on fire. More that smell than burning oil oddly. No fuel leak, nothing like that. I'm pretty sure its related to the part I replaced, but not sure how/why. Maybe old gasket burning off? New gaskets (German Supply) cooking? I've been all over the underside of this thing and I cant find anything! Guess my next step is to remove the part and see visually if I can tell, but I'm not sure what to look for.
Signed,
Stumped in Texas. 
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 51156
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Tue Jan 24, 2012 3:53 pm Post subject: |
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Dear stumped,
did the replacemet F tube have the heat shielding on it?, that shell is lined with an asbestos like substance that can soak up a whole lotta evil smelling things.
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Kirk
Samba Member
Joined: December 05, 2003
Posts: 5487
Location: North Texas
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| Posted: Tue Jan 24, 2012 3:57 pm Post subject: |
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Nope. Just bare.
The one I replaced.
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SGKent 
Samba Member
Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
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| Posted: Tue Jan 24, 2012 4:04 pm Post subject: |
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I don't have an answer but you were likely leaking a lot of exhaust and now you are not (hopefully). You may be burning off oil and stick in the exchanger. I think you have to find where the smoke is coming from before you can rule out other issues.
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Westfabulous
Samba Member
Joined: January 07, 2007
Posts: 4207
Location: The tropic of Canada, dodging the giant flying moose of Surrey!
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| Posted: Tue Jan 24, 2012 4:09 pm Post subject: |
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I agree with SG; you gotta track down where it is coming from, and you are probably burning off gunk now.
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Kirk
Samba Member
Joined: December 05, 2003
Posts: 5487
Location: North Texas
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| Posted: Tue Jan 24, 2012 6:34 pm Post subject: |
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Okay. I guess I'll fire him up again and see if I can tell more. I hope thats all it is. Thanks guys.
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AB westy nut
Samba Member
Joined: June 01, 2010
Posts: 1124
Location: Calgary, Alberta
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| Posted: Wed Jan 25, 2012 8:49 am Post subject: |
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Was the new f-pipe clear of obstructions like mouse or wasp nests?
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mikewire
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Joined: March 22, 2010
Posts: 805
Location: San Antonio, TX
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Kirk
Samba Member
Joined: December 05, 2003
Posts: 5487
Location: North Texas
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| Posted: Wed Jan 25, 2012 3:16 pm Post subject: |
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Yes, and no (to paint).
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skills@eurocarsplus
Samba Peckerhead
Joined: January 01, 2007
Posts: 16886
Location: sticksville, ct.
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| Posted: Wed Jan 25, 2012 4:20 pm Post subject: Re: Severe burning smell after very short drive. |
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| Kirk wrote: |
| .... I did use liberal amounts of Liquid Wrench to loosen the hardware, so I thought it was just that burning off... |
i use that stuff at work. in the past 10 years of working for volvo, i have done probably about 30 turbo's. that stuff will stink to high hell for a while. our shop is basically right off 95, so when we road test, we can really jump on it  i can tell you, after a 15 minute ride at 75+ mph, it is almost burnt off.
i know you said that it isn't a burn off your smelling, but when you get that shit on a manifold and turbo it takes a while to burn it up. the catch is, it will hardly smoke but the stink is there for sure
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Kirk
Samba Member
Joined: December 05, 2003
Posts: 5487
Location: North Texas
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| Posted: Thu Jan 26, 2012 10:14 am Post subject: |
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Okay. I'll remove the piece, make sure there are no obstructions, re install it, and go for a drive this weekend, longer, see if it burns away. Then pull over and see if I can tell whats actually smoking, and report back.
Never before did I realize a smell could be scary. 
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