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Head gasket coolant passage

Discussion in 'Early CJ5 and CJ6 Tech' started by gte636p, Jul 1, 2008.

  1. Jul 1, 2008
    gte636p

    gte636p Member

    smyrna, Ga
    Joined:
    Sep 23, 2002
    Messages:
    492
    I know it's here somewhere, but was unable to find it...

    My head gasket has a small pinhole for the water passage. Is it recommended to keep this or should I make it larger to open up the passage from the block to the head? I was meaning to ask before and forgot... if it's not really important I want to leave my running motor alone. If, however, it is customary to enlarge the hole I would rather go back and do it before the inevitable happens.
     
    gte636p, Jul 1, 2008
    #1
  2. Jul 2, 2008
    1960willyscj5

    1960willyscj5 Well-Known Member

    Mesa, Arizona
    Joined:
    Nov 27, 2006
    Messages:
    2,793
    Do you have the right gasket for your engine?
    My understanding is that all passeges should be open with no restrictions.
     
    1960willyscj5, Jul 2, 2008
    #2
  3. Jul 2, 2008
    gte636p

    gte636p Member

    smyrna, Ga
    Joined:
    Sep 23, 2002
    Messages:
    492
    umm yeah... pretty sure it's the right gasket.
     
    gte636p, Jul 2, 2008
    #3
  4. Jul 3, 2008
    cpt logger

    cpt logger Member

    Western Colorado
    Joined:
    Feb 6, 2006
    Messages:
    108
    Chris, What engine are we talking about? If it is the L-134 flat head engine, If I Recall Correctly (IIRC) the water does not circulate through the head, so no need to enlarge a water passage that goes nowhere. I could be wrong so be sure to double check with someone who has rebuilt one of these recently, not over 20 years ago like me. Matt W.
     
    cpt logger, Jul 3, 2008
    #4
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