Anyone ever see one of these?
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500, 472, 425, 368 Discussion, Anyone ever see one of these? in Cadillac Engine Technical Discussion; This sleeve was inside the header pipe on my Eldorado. It looks very restrictive. No wonder the manifold was cracked ...
  1. #1
    kevin666's Avatar
    kevin666 is offline Cadillac Owners Member
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    Anyone ever see one of these?



    This sleeve was inside the header pipe on my Eldorado. It looks very restrictive. No wonder the manifold was cracked so bad with all that heat being restricted inside of it.

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  3. #2
    cadillac_al is offline Cadillac Owners Connoisseur
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    Re: Anyone ever see one of these?

    Yeah, there is something strange there. I have seen cracked manifolds only very rarely. Will the header pipe bolt on without that reducer thing? I would definitely try to elimnate it somehow. I hope an Eldo owner can chime in.

  4. #3
    yorfate is offline Cadillac Owners Member
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    Re: Anyone ever see one of these?

    That looks like a quick fix for an absent heat riser valve. No good..

  5. #4
    deVille33 is offline Cadillac Owners Connoisseur
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    Re: Anyone ever see one of these?

    That sleeve looks like it may have been inserted into the manifold to correct the cracked seal seat of the manifold. A quick fix of sorts.

  6. #5
    Roadmaster75's Avatar
    Roadmaster75 is offline Cadillac Owners Member
    Automobile(s): 1978 Eldorado Biarritz
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    Re: Anyone ever see one of these?

    HI
    FYI
    I just pulled the same gizmos out of a 76 Eldo motor that has not been opened up in
    the past. And, yes the driver's side manifold is cracked, too!

    mike

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