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Author Topic: Rancid exhaust!  (Read 3609 times)

Offline Cowboy_Customs

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Rancid exhaust!
« on: October 30, 2008, 04:23:55 pm »
What is the deal with my exhaust smelling soooo bad??? It will burn your eyes, and stay on your clothes! It is just NASTY! I have a new O2 sensor, no cat..... I thought ol worn out cats made em smell this bad? I have cleaned the TBI, intake, valves, put additive in the fuel.........
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Dream Truck:
1991 GMC Crewcab Dually Western Hauler conversion 454TBI 4L80E 19.5's

http://community.webshots.com/user/Cowboy_Customs

Offline Captkaos

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Re: Rancid exhaust!
« Reply #1 on: October 30, 2008, 04:36:39 pm »
What do the plugs look like?
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Offline Cowboy_Customs

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Re: Rancid exhaust!
« Reply #2 on: October 30, 2008, 04:45:34 pm »
a lil black from some oil burn. Motor needs a rebuild, the rings are starting to get weak.
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Dream Truck:
1991 GMC Crewcab Dually Western Hauler conversion 454TBI 4L80E 19.5's

http://community.webshots.com/user/Cowboy_Customs

Offline SUX2BU99

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Re: Rancid exhaust!
« Reply #3 on: November 03, 2008, 11:51:57 am »
Yeah, that's my truck too. I have no emissions equip at all though, hotter cam and heads, headers, true duals and a questionably-working Edelbrock 650 carb. I can smell the exhaust fumes the next morning washing out of my hair in the shower if I've run my truck at all the day before. I should check my plugs. Probably a little on the dark side.
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85 Chevy Silverado C10 short, wide, yellow, 2wd. Lowered, 60-over 350 with Dart Iron Eagle heads and Comp Cams XE268 cam, TH350 w/ shift kit, 3.40 Gov-lok 12 bolt.

Offline VileZambonie

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Re: Rancid exhaust!
« Reply #4 on: November 03, 2008, 03:52:37 pm »
Well if you are running too rich you will know it. Try tuning it up and recalibrate the carburetor
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Offline Cowboy_Customs

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Re: Rancid exhaust!
« Reply #5 on: November 05, 2008, 07:32:27 pm »
My exhaust is much better now. Made a big booboo the other day envolving hydrolocking the motor on gasoline..............  :o Thats a story by itself. And the LAST time I go to town without taking the fuel cap off, with my throttle body torn apart!

So anyway, I pulled the plugs, and they were NASTY! All sorts of carbon. Cleaned em up, now the tail pipe smells alright.
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Dream Truck:
1991 GMC Crewcab Dually Western Hauler conversion 454TBI 4L80E 19.5's

http://community.webshots.com/user/Cowboy_Customs
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