Smoking out of only one side of dual exhaust.
#448974
08/25/09 11:29 AM
08/25/09 11:29 AM
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Joined: Jul 2007
Posts: 406
Houma, Louisiana
twister360
OP
mopar
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OP
mopar
Joined: Jul 2007
Posts: 406
Houma, Louisiana
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I have a 74 Duster with a mild 360, headers, and dual exhaust. I do not have an h or x pipe in the system, just straight from engine to rear tips. I drove the car yesterday and noticed it blows smoke from the driver side exhaust. It smells like gas, but I am not sure. Is it possible for the car to be rich only on one side? I have about 1500 miles on the build and it does not use oil.
Thanks
My car 74 Duster mild 360/904/3.91 13.44/101.54
Son's car 75 Dart Sport 318/904/4.10 looking for a 360 or 408
2004 Dodge Ram 1500 Laramie 5.7
2010 Dodge Challenger R/T Classic B-5 6 speed
2010 Jeep SRT8 for the little wife
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Re: Smoking out of only one side of dual exhaust.
[Re: twister360]
#448975
08/25/09 11:51 AM
08/25/09 11:51 AM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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I don't think it's possible to be rich on just "one side" because I think just about every intake, when at WOT, will feed 2 cylinders on each side from 1 circuit of the carb...for example, the front primaries would feed 1, 4, 6, 7. and the secondaries would feed 2, 3, 5, 8. or something similar to that--with most dual planes anyway....single planes would be more like front primaries on carb feed front 4 cylinders, and the secondaries feed the back 4 cylinders...
but, I don't know for sure, if the carb is gummed up or something it could be possible that one venturi is running rich, making 1 or 2 cylinders richer than the rest...
what color is the smoke? Blue/Grey? Black? White?
**Photobucket sucks**
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Re: Smoking out of only one side of dual exhaust.
[Re: twister360]
#448976
08/25/09 11:55 AM
08/25/09 11:55 AM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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what color smoke? white=water, blue=oil, black=rich
if it's a dual plane manifold, typically one side of the carb feeds 1/2 the cylinders. on an eddie RPM or air gap, the DS of the carb feeds 1,7,4,6 and the pass side feeds 3,5,2,8 (looking at the pics on summit)
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: Smoking out of only one side of dual exhaust.
[Re: ph23vo]
#448978
08/25/09 12:57 PM
08/25/09 12:57 PM
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Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
intake gasket or surface... dan
could be sucking oil on one bank.
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Re: Smoking out of only one side of dual exhaust.
[Re: patrick]
#448979
08/25/09 01:36 PM
08/25/09 01:36 PM
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Joined: Jul 2007
Posts: 406
Houma, Louisiana
twister360
OP
mopar
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OP
mopar
Joined: Jul 2007
Posts: 406
Houma, Louisiana
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Quote:
what color smoke? white=water, blue=oil, black=rich
if it's a dual plane manifold, typically one side of the carb feeds 1/2 the cylinders. on an eddie RPM or air gap, the DS of the carb feeds 1,7,4,6 and the pass side feeds 3,5,2,8 (looking at the pics on summit)
I have a dual plane air gap. The smoke is blackish and smells somewhat of gas. Any test to check out the problem? Thanks
My car 74 Duster mild 360/904/3.91 13.44/101.54
Son's car 75 Dart Sport 318/904/4.10 looking for a 360 or 408
2004 Dodge Ram 1500 Laramie 5.7
2010 Dodge Challenger R/T Classic B-5 6 speed
2010 Jeep SRT8 for the little wife
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Re: Smoking out of only one side of dual exhaust.
[Re: twister360]
#448981
08/25/09 09:39 PM
08/25/09 09:39 PM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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Quote:
Quote:
what color smoke? white=water, blue=oil, black=rich
if it's a dual plane manifold, typically one side of the carb feeds 1/2 the cylinders. on an eddie RPM or air gap, the DS of the carb feeds 1,7,4,6 and the pass side feeds 3,5,2,8 (looking at the pics on summit)
I have a dual plane air gap. The smoke is blackish and smells somewhat of gas. Any test to check out the problem? Thanks
hmm...only thing I can think of would be an intake manifold gasket not sealing, causing a vaccuum leak on one side, leaning out that bank of cyls?
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: Smoking out of only one side of dual exhaust.
[Re: patrick]
#448982
08/26/09 02:38 PM
08/26/09 02:38 PM
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Joined: Jul 2007
Posts: 406
Houma, Louisiana
twister360
OP
mopar
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OP
mopar
Joined: Jul 2007
Posts: 406
Houma, Louisiana
|
Quote:
Quote:
Quote:
what color smoke? white=water, blue=oil, black=rich
if it's a dual plane manifold, typically one side of the carb feeds 1/2 the cylinders. on an eddie RPM or air gap, the DS of the carb feeds 1,7,4,6 and the pass side feeds 3,5,2,8 (looking at the pics on summit)
I have a dual plane air gap. The smoke is blackish and smells somewhat of gas. Any test to check out the problem? Thanks
hmm...only thing I can think of would be an intake manifold gasket not sealing, causing a vaccuum leak on one side, leaning out that bank of cyls?
Could I spray starting fluid along the manifold gasket and see if it effects the running of the engine?
My car 74 Duster mild 360/904/3.91 13.44/101.54
Son's car 75 Dart Sport 318/904/4.10 looking for a 360 or 408
2004 Dodge Ram 1500 Laramie 5.7
2010 Dodge Challenger R/T Classic B-5 6 speed
2010 Jeep SRT8 for the little wife
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