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Exhaust link pipe/egr?

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    #1

    Exhaust link pipe/egr?

    Hi folks.

    I got my GM out of hiding last week and ditched the whitewalls for some standard tyres (they were 16 years old and cracked to hell). After being stood over the Xmas period, it had developed a rather loud TAP from underneith (at first I thought it was a sticky follower) but alas, its a hole in the link pipe on the exhaust system. The pipe is pretty shot, and has been welded repeatedly to fix the rust.

    My question to you good folk today is, can I get rid of this pipe? (it looks like a balance pipe that links both branches of exhaust) and also has a pipe going up into the engine compartment (something to do with the EGR system?) Can all this be removed with no problem? Are there any complications with blanking the EGR off?

    Its a stock 302 EFI engine

    Thank you!
    1976 Manta B coupe
    1987 Manta 16v Hatch
    1978 Series 3 Ambulance
    1989 Grand Marquis LS
    2006 Mondeo ST TDCi
    Tags: None
    #2
    EGR passages are internal on that. Sounds like it's the pipe from the smog pump that's leaking. You can do away with it, and remove the smog pump and it's associated plumbing. Then plug all the holes. Then run a shorter belt to retain A/C. This is all assuming that you're not going to get busted come inspection time, If you even have it.


    If this is all horribly wrong, forgive me, I just woke up...
    1990 MGM: $50 E7 heads, HO cam, Holley SysteMAX lower intake, HO upper intake with an Explorer TB. LSC ECM. Lincoln logs into stock dual exhaust. K&N drop in air filter. Wide ratio AOD, 2400 converter with a 3.08 one tire fire out back. Car is less slow now. Then there's the '92 Beater. Dual 2.25" exhaust with shiny tips. Rumbles nice. Super slow. Burns oil too.

    Comment

      #3
      sounds like the smog crossover pipe on the back of the heads. Unless you're in one of those emission commie areas that needs everything perfectly stock, yes, it can be removed. also, if you cut the mounting heads off and turn them around, they will seal up the holes on the back of the heads as well (what I did) and I used some copper RTV to seal them bastards up good too.

      Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
      rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

      Originally posted by gadget73
      ... and it should all work like magic and unicorns and stuff.

      Originally posted by dmccaig
      Overhead, some poor bastards are flying in airplanes.

      Comment

        #4
        Thanks guys, I have pictures of the offending pipe but no time to upload them (off out in a min for a job interview)

        I can remove the catylitic converters if i wish as the age of the car doesnt require them for our inspection over here. It puts a lot of modern cars to shame!
        1976 Manta B coupe
        1987 Manta 16v Hatch
        1978 Series 3 Ambulance
        1989 Grand Marquis LS
        2006 Mondeo ST TDCi

        Comment

          #5
          There are two air pipes. One goes down to the catalytic converters to inject air. It makes the cats warm up faster and helps oxidize the CO into CO2. The other one goes to the back of the heads to help warm the cats up. Neither are all that useful. If yours are rotted out, feel free to remove them and the air pump they feed from. Just plug the holes or you will have an exhaust leak.
          86 Lincoln Town Car (Galactica).
          5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

          91 Lincoln Mark VII LSC grandpa spec white and cranberry

          1984 Lincoln Continental TurboDiesel - rolls coal

          Originally posted by phayzer5
          I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

          Everything looks like voodoo if you don't understand how it works

          Comment

            #6
            Picture of offending pipe



            its quite messy, but it doesnt leak any more. So all of this can be removed if need be? good to know

            And heres a picture of the exhaust I had made a few months ago. Full twin system powerflow, sounds lovely when the engine is under load

            1976 Manta B coupe
            1987 Manta 16v Hatch
            1978 Series 3 Ambulance
            1989 Grand Marquis LS
            2006 Mondeo ST TDCi

            Comment

              #7
              yup... you can cut that off and plug it up. you can also remove the one I was talking about behind the engine heads (it's part of the same plumbing) along with the diverter valves and smog pump if needed. I originally shoved an acorn (no through hole) lug nut into the short hose going to the check valve on the crossover pipe to the heads when I took my smog pump and other crap off. had my cousin weld the cat tubes shut right at the cat and left it that way for a long time before I took the crossover pipe off. btw... distributor wrench works great to work those bolts loose/tight on the crossover pipe.

              Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
              rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

              Originally posted by gadget73
              ... and it should all work like magic and unicorns and stuff.

              Originally posted by dmccaig
              Overhead, some poor bastards are flying in airplanes.

              Comment

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