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Head problems

Discussion in 'Early CJ5 and CJ6 Tech' started by lostexan_78, Oct 30, 2005.

  1. Oct 30, 2005
    lostexan_78

    lostexan_78 Sponsor

    San Antonio, Tx.
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    Dec 1, 2004
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    maybe doctor will help...j/k I have got all the head bolts off of the f head. I have tried prying, praying, rubber maleting, using cherry picker, cussing. I have looked at the fsm, done a few numerous searches on here, and have not came up with any clues why it wont break lose. I have soaked it in wd-40, brake cleaner, and some other kinda off bolt breaker free stuff. any suggestions:mad:
     
    lostexan_78, Oct 30, 2005
    #1
  2. Oct 30, 2005
    jon

    jon New Member

    Holderness N.H.
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    May 20, 2004
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    did you get the bolt under the carb?
     
    jon, Oct 30, 2005
    #2
  3. Oct 30, 2005
    lostexan_78

    lostexan_78 Sponsor

    San Antonio, Tx.
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    Dec 1, 2004
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    under the carb? as in remove carb to access?
     
    lostexan_78, Oct 30, 2005
    #3
  4. Oct 30, 2005
    jon

    jon New Member

    Holderness N.H.
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    May 20, 2004
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    yes. it is in the hole under the carb
     
    jon, Oct 30, 2005
    #4
  5. Oct 30, 2005
    lostexan_78

    lostexan_78 Sponsor

    San Antonio, Tx.
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    thanx
     
    lostexan_78, Oct 30, 2005
    #5
  6. Oct 30, 2005
    jon

    jon New Member

    Holderness N.H.
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    your welcome.
     
    jon, Oct 30, 2005
    #6
  7. Oct 30, 2005
    m38willys

    m38willys Jeep Vice 2024 Sponsor

    Green Cove...
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    Sep 30, 2002
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    Many a F-headed cylinderhead has been broken or cracked this way. Glad you asked before prying too hard.
     
    m38willys, Oct 30, 2005
    #7
  8. Oct 30, 2005
    lostexan_78

    lostexan_78 Sponsor

    San Antonio, Tx.
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    lostexan_78, Oct 30, 2005
    #8
  9. Oct 31, 2005
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
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    Nov 6, 2002
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    Looking a little rusty in there.... I think I'd try to knock that scale down a good bit, and then oil the daylights out of that cylinder before I even tried to turn it over by hand.
     
    w3srl, Oct 31, 2005
    #9
  10. Oct 31, 2005
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    Sep 21, 2002
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    Ditto what Steve said. Was the head gasket blown? Anyway, I'm sure it can be fixed up with no problem, probably machine shop time. :hurrican:
     
    Glenn, Oct 31, 2005
    #10
  11. Oct 31, 2005
    lostexan_78

    lostexan_78 Sponsor

    San Antonio, Tx.
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    Well I had had an overheating problem, so I had drained and flushed it, a couple of times, when I did do that it was very sludgey but I figured that was from P.O. letting it sit, and not doing p.m. so I fille dit up and It did alot better. But now I see that is what it was, need to get it ported and polished or something maybe just switch over to the:v6:
     
    lostexan_78, Oct 31, 2005
    #11
  12. Oct 31, 2005
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
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    Depending on what you want from the Jeep, you could hone it and measure the taper. Even with a lot of taper, new rings will help. The rings will wear out fairly quickly if you have a lot of taper, but otherwise it's not a problem.

    Ported and polished is a hot rod thing. Maybe you mean grind the valves? I don't think it would take a lot to get it running again.
     
    timgr, Oct 31, 2005
    #12
  13. Oct 31, 2005
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
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    You could probably knock the worst of it down with some good emery cloth, and follow that with a cylinder hone. What you don't want is one of the rings hanging up on a piece of rust or scale, because that will usually break one or more rings.

    From the looks of things, and your description you likely had a blown head gasket. Before you spend a pile of money on an engine swap (which is very easy to do) I'd clean the cylinder up and make sure the shortblock turns over ok. Then I'd disassemble the intake valves and lap them into the head. (easy job, just time consuming) Put it back together with a new head gasket and see how it runs. For an investment of $20 bux and a coupla evenings' time you can either have it back on the road or know for sure that the engine is shot. YMMV. ;)
     
    w3srl, Oct 31, 2005
    #13
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