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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » Cobra Oval Breather Question

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    7/16/2023 12:06 PM  #1

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Cobra Oval Breather Question

    Those of you that have them how did you keep them from hitting the needle adjusting screw that is on top of float bowl....mine hits it and it dont let it sit down and seal. also sits on the plug wires.

    SO>>>>>what do you guys/girls do  some may not have even noticed it does this it is sucking air right there not even filtering it like that for sure
     

    Its really me....I fixed my caps lock .
     

    7/17/2023 9:38 AM  #2

    retired65
    FYI FORD Member

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    Registered: 6/18/2020
    Posts: 37

    Re: Cobra Oval Breather Question

    On mine, I was able to mill an area in the cleaner base that cleared the part on the carb. My base had maybe 1/4  inch thickness there.  Hope info helps.

     

    7/17/2023 6:07 PM  #3

    Rudi
    Senior 24-7 FYI Addict

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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
    Posts: 3,936

    Re: Cobra Oval Breather Question

    How much interference you got Billy.
    Mine just needed about an eighth inch, see other air cleaner thread for pictures.
    Other than that percussion mods may be needed

    Last edited by Rudi (7/17/2023 6:09 PM)

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    7/17/2023 10:45 PM  #4

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: Cobra Oval Breather Question

    Rudi wrote:

    How much interference you got Billy.
    Mine just needed about an eighth inch, see other air cleaner thread for pictures.
    Other than that percussion mods may be needed

    Not much really but my base is cast like the top.

    Its really me....I fixed my caps lock .
       •Thread Starter
     

    7/20/2023 9:16 PM  #5

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: Cobra Oval Breather Question

    Noticed my BAFFLES are missing out of my Valve covers.....crap

    Its really me....I fixed my caps lock .
       •Thread Starter
     

    7/21/2023 9:34 PM  #6

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: Cobra Oval Breather Question

    Gotta get some baffles in there some how.

    Its really me....I fixed my caps lock .
       •Thread Starter
     

    7/23/2023 8:35 AM  #7

    BobE
    Senior 24-7 FYI Addict

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    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,558

    Re: Cobra Oval Breather Question





    I had to remove the baffles from my “Cobra” valve covers due to roller rocker arm clearance issues.  Not a good move, oil was getting thrown flung into the PVC valve one on side and into the breather on the other side.  These pictures are what I did to solve the issue.  I tapped the valve cover for 10/32 Allen head screws, used Loctite and safety wired to be sure they didn’t unscrew and cause bad things to happen.
     

    Last edited by BobE (7/23/2023 8:36 AM)

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

    7/23/2023 10:43 AM  #8

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: Cobra Oval Breather Question

    BobE wrote:





    I had to remove the baffles from my “Cobra” valve covers due to roller rocker arm clearance issues.  Not a good move, oil was getting thrown flung into the PVC valve one on side and into the breather on the other side.  These pictures are what I did to solve the issue.  I tapped the valve cover for 10/32 Allen head screws, used Loctite and safety wired to be sure they didn’t unscrew and cause bad things to happen.
     

    so that stopped the oil or most of it?  Steve is checking on some baffles he may have I seen some after market ones that may also work.Not sure where I laid mine.
     

    Its really me....I fixed my caps lock .
       •Thread Starter
     

    7/24/2023 6:34 AM  #9

    BobE
    Senior 24-7 FYI Addict

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    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,558

    Re: Cobra Oval Breather Question

    Billy - yes, this stopped the issues I was having.  No more oil soaked breather cap, no more oil being thrown into the PVC valve.  Prior to installing the baffles, oil thrown into the PVC would cause oil to be sucked into the intake manifold when I lifted off the gas pedal, particularly at highway speeds.  I haven't had this issue since installing the baffles several years ago.  

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

     

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