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Name this part...

Discussion in 'Intermediate CJ-5/6/7/8' started by matt8828, Nov 5, 2011.

  1. Nov 5, 2011
    matt8828

    matt8828 Member

    Lexington, KY
    Joined:
    Oct 24, 2010
    Messages:
    132
    Guys, I am replacing the PCV filters and hoses on my 74 I6. I am having trouble finding info on what this part is:
    [​IMG]
    It goes on the brake booster on one end and to the manifold on the other end.
    [​IMG]

    The best i can come up with is it is a "spectre filter"? Not sure. Thanks for your help.
     
    matt8828, Nov 5, 2011
    #1
  2. Nov 5, 2011
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
    Joined:
    Sep 22, 2002
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    8,360
    It's a one-way valve so the booster will hold vacuum....
     
    Patrick, Nov 5, 2011
    #2
  3. Nov 5, 2011
    pathkiller

    pathkiller Member

    Lorton, VA
    Joined:
    Apr 17, 2005
    Messages:
    878
    Brake vacuum check valve. Commonly found in the "Help!" section of most FLAPS. Has nothing to do with the PCV system and doesn't need to be replaced unless it's bad (you should only be able to suck air through it in one direction, the booster side).
     
    pathkiller, Nov 5, 2011
    #3
  4. Nov 5, 2011
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
    Joined:
    Sep 22, 2002
    Messages:
    8,360
    Actually, you should be able to pull air from the manifold side. If you can suck air through it from the booster side, it's no good.
     
    Patrick, Nov 5, 2011
    #4
  5. Nov 5, 2011
    pathkiller

    pathkiller Member

    Lorton, VA
    Joined:
    Apr 17, 2005
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    878
    Right, I got it backwards.
     
    pathkiller, Nov 5, 2011
    #5
  6. Nov 6, 2011
    sterlclan

    sterlclan Member 2024 Sponsor 2022 Sponsor

    exploring the...
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    good opportunity for a junkyard trip most gm cars and trucks use em
     
    sterlclan, Nov 6, 2011
    #6
  7. Nov 6, 2011
    pathkiller

    pathkiller Member

    Lorton, VA
    Joined:
    Apr 17, 2005
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    For a $2 part? Maybe if I'm already in the yard looking for other parts. Otherwise I'd stop by FLAPS on my way home from work.
     
    pathkiller, Nov 6, 2011
    #7
  8. Nov 6, 2011
    mb82

    mb82 I feel great!

    Charlottesville Va
    Joined:
    Mar 17, 2003
    Messages:
    2,706
    Yep it cost $5 to get into my yards so at that point I am already losing money on a used part.
     
    mb82, Nov 6, 2011
    #8
  9. Nov 6, 2011
    matt8828

    matt8828 Member

    Lexington, KY
    Joined:
    Oct 24, 2010
    Messages:
    132
    Thanks guys. I went ahead and ordered a new one now that I know what it is. Its a cheap part and I am going through the engine now so might as well take care of it.
     
    matt8828, Nov 6, 2011
    #9
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