exhaust reverse flow
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- oppositeLock
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exhaust reverse flow
Has anyone had an issue with the exhaust flowing back to the passenger compartment from the tailpipe exit? Even on a half hour drive (top down) with very few stops I get back smelling like exhaust. I'm pretty sure my exhaust is free of leaks - new gaskets at the block and header collector so I think it's pretty well sealed....though even if not, I'd think it would be ducted away when moving, unless there's an aerodynamic back flow.
'68 R16 + 5spd
- GeoffM
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- oppositeLock
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Re: exhaust reverse flow
Correction. Leak at (and potentially through the sides of) the flex pipe. Back to the exhaust shop.
But while I'm at (hijacking my own thread ) do the flex pipes typically seal well through the woven part?
But while I'm at (hijacking my own thread ) do the flex pipes typically seal well through the woven part?
'68 R16 + 5spd
- Gregs672000
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Re: exhaust reverse flow
They have a tube through them, the mesh allows for flex.
Greg Burrows
'67 2000 #588
Tacoma, WA
'67 2000 #588
Tacoma, WA
- oppositeLock
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Re: exhaust reverse flow
Back at this. Exhaust shop checked everything and says it's sealed.
So is backflow from the tailpipe exit to the "cabin" area while moving a common issue? (driving with the top down btw).
So is backflow from the tailpipe exit to the "cabin" area while moving a common issue? (driving with the top down btw).
'68 R16 + 5spd
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Re: exhaust reverse flow
Not on my high windshield cars. At a light, yes but once moving no.
Try this, get a cheap exhaust extension. See if extending the outlet makes a diffference.
Dan
Try this, get a cheap exhaust extension. See if extending the outlet makes a diffference.
Dan
SPL311 aka Skooter. Sold. Now wasting away in the SF area.
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1990 Nissan 300zx. Sold this one too.
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- Alvin
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Re: exhaust reverse flow
Alvin Gogineni
San Jose, CA
1967.5 SPL/SR20
1997 Acura Integra GS-R
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San Jose, CA
1967.5 SPL/SR20
1997 Acura Integra GS-R
2022 Chevy Bolt EUV
zcarblog.com
YouTube
My SR20 Build Thread
- oppositeLock
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Re: exhaust reverse flow
It's definitely bad at a light, but even driving for a half hour with very few stops I smell like exhaust when I get out. cough.
'68 R16 + 5spd
- Alvin
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Re: exhaust reverse flow
I really think that is a result of running rich, Joe.oppositeLock wrote: ↑Sat May 26, 2018 12:03 am It's definitely bad at a light, but even driving for a half hour with very few stops I smell like exhaust when I get out. cough.
Alvin Gogineni
San Jose, CA
1967.5 SPL/SR20
1997 Acura Integra GS-R
2022 Chevy Bolt EUV
zcarblog.com
Instagram
YouTube
My SR20 Build Thread
San Jose, CA
1967.5 SPL/SR20
1997 Acura Integra GS-R
2022 Chevy Bolt EUV
zcarblog.com
YouTube
My SR20 Build Thread
- boxcar
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Re: exhaust reverse flow
I'd have to agree with Alvin on this one.
- nismou20
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Re: exhaust reverse flow
Exhaust smell or Blowby smell? Is your aircleaner to valve cover hose properly attached?
2004 Chevy Tracker
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2010 RAV4
1969 Datsun Roadster
2005 Lotus Elise
1995 Toyota Tercel (Poormans Corolla)
2001 Fleetwood Jamboree RV
- oppositeLock
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Re: exhaust reverse flow
Yes, do have the hose and air cleaner attached. As Alvin points out, idling at stop it's definitely made worse by the rich mixture (working on solving that) but I'm convinced there's exhaust working its way in there at speed.
'68 R16 + 5spd