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Thread: 5.0

  1. #1
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    Default 5.0

    what is this part and why are they junk on all the 5.0s...egr system right?
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    1988 Thunderbird Sport, Former 4.6 DOHC T56 conversion project.

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  2. #2
    Nate's Avatar
    Nate is offline If I could get a firm grip on reality, I'd choke it!
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    Default Re: 5.0

    i think it has something to do with letting the air cicrulate between the heads or getting them air from the air pump, whatever it was it looked at me the wrong way so i cut it off and welded it shut . along with removeing every other emmissions POS off the car after removeing all the junk i dont use, emmissions, ac, ect... theirs tons more room and i shaved off like 50+ lbs off the front.
    1987 Ford ThunderBird Turbo
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  3. #3
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    Default Re: 5.0

    Yep, that comes back from the diverter valve and goes back to the holes in the rear of the heads.

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    Default Re: 5.0

    I bought one a couple years back under HELP or motormite brand

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    Default Re: 5.0

    huh...thanks guys. your car ran fine after blockin it off aye i was just curious. its the only thing broken on the car and the motor is coming out in favor of a HO anyway. just about every sport i see has one of these broken or repaired. the last 3 mustangs i looked at had leaking headers. talk about annoying. why is that anyway...garbage...lol
    1988 Thunderbird Sport, Former 4.6 DOHC T56 conversion project.

    Rest of the country, Welcome to Massachusettes. Enjoy your stay.

    Halfbreed... Mango Orange Y2K Mustang GT
    FRPP complete 2000 Cobra engine swap, T56 n' junk...
    ~John~

  6. #6
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    Default Re: 5.0

    It's a one-way valve that lets air from the smog pump into the heads via the pipe that runs across the back, and blocks any exhaust pulses from coming back out and ruining the smog pump or control valves.

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    Default Re: 5.0

    Emissions junk. I cleaned all of mine out as well as getting rid of a bunch of excessive vaccuum lines over there. It's insanely empty on that side. Now if I can make the other side look nearly as empty, it'll be great.

    I unbolted the whole system (1 bolt on each head) cut all the excessive pipe off, welded the holes where I cut the pipes, and only bolted the small plates back on over the holes in the heads. If you go that route, make sure you cover the hole completely or your car will sound like a truck It'd probably be easier to line up if you left the cross bar in back.
    Last edited by crystal; 10-21-2004 at 08:06 AM.

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    Talking Re: 5.0

    if i could only weld...hey, i know somebody takin welding classes.....
    1988 Thunderbird Sport, Former 4.6 DOHC T56 conversion project.

    Rest of the country, Welcome to Massachusettes. Enjoy your stay.

    Halfbreed... Mango Orange Y2K Mustang GT
    FRPP complete 2000 Cobra engine swap, T56 n' junk...
    ~John~

  9. #9
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    Default Re: 5.0

    LOL!

    get me the part and I'll hack it up for ya

  10. #10
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    Default Re: 5.0

    Quote Originally Posted by crystal

    I unbolted the whole system (1 bolt on each head) cut all the excessive pipe off, welded the holes where I cut the pipes, and only bolted the small plates back on over the holes in the heads. If you go that route, make sure you cover the hole completely or your car will sound like a truck It'd probably be easier to line up if you left the cross bar in back.
    You can also unbolt it and cut the pipes off, then flip it around and bolt it on the heads backwards to block off the holes. No welding required.
    '97 Ranger 3.0
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