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Crank case ventilation

Discussion in 'Early CJ5 and CJ6 Tech' started by Thunderpig, Jun 22, 2008.

  1. Jun 22, 2008
    Thunderpig

    Thunderpig Member

    Parachute, Colorado
    Joined:
    Mar 28, 2006
    Messages:
    259
    Setting up F134 today. Working on the vacuum system. I just bought a new fuel pump without the vacuum connections for the wipers because I am using electric models. My question is now that I don't have vacuum connections, How do I hook up the PCV valve and lines to the motor.

    Just straight line connecting the exhaust valve cover straight to the intake manifold on the head? No tee?

    Checked out the Crankcase vent tips on CJ3 page and no specific answer though there is mention of fuel pump without vacuum connections.

    Help is appreciated.
     
  2. Jun 22, 2008
    66CJ52008

    66CJ52008 gone fishin

    Marietta,Ga
    Joined:
    Apr 13, 2008
    Messages:
    25
    on my 66 it runs from the valve cover thru a pcv valve attached to the intake side of the head:beer:
     
  3. Jun 22, 2008
    Brian P

    Brian P Member

    Clarkdale Arizona
    Joined:
    Nov 24, 2007
    Messages:
    650
    Check this thread out and see if it helps www.earlycj5.com/forums/showthread.php?t=55365
    Your existing PCV system will work just fine by capping off the old vacuum line from the windshield vacuum pump part of the old fuel pump.
     
    Last edited: Jun 22, 2008
  4. Jun 23, 2008
    DKillam

    DKillam Sponsor

    San Angelo, Texas
    Joined:
    Oct 31, 2005
    Messages:
    228
    Just did the same thing a couple of weeks ago - changed to a vacuumless fuel pump. I used a plug at the "T" where the old pump attached. I think it's called an inverted flare plug? No problems. Or you can run a line straight to the intake as you suggested. :)
     
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