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Cam thrust button V6

Discussion in 'Early CJ5 and CJ6 Tech' started by farmall, Sep 24, 2008.

  1. Sep 24, 2008
    farmall

    farmall New Member

    CENTRAL OR.
    Joined:
    Apr 10, 2008
    Messages:
    48
    I went to install the timing cover on my newly rebuilt short block. My local NAPA did an exellent job on the machine work. I found that the new cam button and spring are about 1/4 longer than the old plastic button and the cover will not physically meet the block. The new button is metal with several thin washers under the head that act as bearings. It is very nicely made but I t will not work. I put the old spring and button on the cam bolt and the cover closes fine. Help!
     
    farmall, Sep 24, 2008
    #1
  2. Sep 24, 2008
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
    Joined:
    Sep 22, 2002
    Messages:
    5,349
    Use the old one and send the new one back. Unless it is broke there is no reason not to use the old one. While the new one looks better it does not really work any better than the old style.
    Mine was on there for 166k miles. When I rebuilt the engine the phenolic button was cracked, I machined a new one and used the old spring and put it back together.
     
    Mcruff, Sep 24, 2008
    #2
  3. Sep 26, 2008
    bergy9

    bergy9 Jeep Maffia, CJ 5 Chapter

    Lincoln City, OR
    Joined:
    Jul 2, 2007
    Messages:
    184
    I would agree, use the old one, don't see why it wouldn't work or fail for that matter.
     
    bergy9, Sep 26, 2008
    #3
  4. Sep 26, 2008
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
    Joined:
    Sep 22, 2002
    Messages:
    8,360
    Use the old one. They don't really even need the thrust button. Mine doesn't have one; never did. I've seen/ heard of others that never had one....When I replace my timing chain again, I'll probably install one, can't hurt.
     
    Patrick, Sep 26, 2008
    #4
  5. Sep 26, 2008
    farmall

    farmall New Member

    CENTRAL OR.
    Joined:
    Apr 10, 2008
    Messages:
    48
    There were ever so slight swirl marks on the button and on the inside of the timing cover after 100000 mi.. I just installed the old one and put the cover and pump on. I hope to do the heads and intake tomorrow. Thanks for the insight :v6:
     
    farmall, Sep 26, 2008
    #5
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