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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: Cowboy_Customs on October 30, 2008, 04:23:55 pm

Title: Rancid exhaust!
Post by: Cowboy_Customs 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.........

Title: Re: Rancid exhaust!
Post by: Captkaos on October 30, 2008, 04:36:39 pm

What do the plugs look like?

Title: Re: Rancid exhaust!
Post by: Cowboy_Customs 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.

Title: Re: Rancid exhaust!
Post by: SUX2BU99 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.

Title: Re: Rancid exhaust!
Post by: VileZambonie 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

Title: Re: Rancid exhaust!
Post by: Cowboy_Customs 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.