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Cam eating bug

Discussion in 'Early CJ5 and CJ6 Tech' started by termin8ed, Jul 10, 2006.

  1. termin8ed

    termin8ed I didn't do it Staff Member

    Well, looks like I'll be getting a cam now too. Here's a pic of the 2 lifters on cyl 4 and the lobes on the camshaft. The flat spot(on the left most lobe) is where the lobe is supposed to be:shock:
    I was looking at sparky's post from a week or 2 ago and probably order the one Warloch mentioned from Summit.

    On the bright side, about half of the lifters I pulled looked like they where starting to collapse. That and some of the lobes looked kinda chewed up on the edges. Looks like I woulda been doing this later if not sooner.

    On a side note, SOMEONE must have allready had problems with this one. The pushrod on this lifter was thicker. Didn't compare it yet to see if it was longer.
    Oh well, enough carnage for one day...
     
    termin8ed, Jul 10, 2006
    #1
  2. w3srl

    w3srl All-around swell dude Staff Member

    :mad:
     
    w3srl, Jul 10, 2006
    #2
  3. sparky

    sparky Sandgroper Staff Member Founder

    Whoa! Makes mine look mild. :shock:

    Mine was still enough to feel it clearly though.

    If you need the cam faster than Summit gets it to you, call customer service, they can drop ship it from Competition Cams if you talk real nice. That got me an extra two weeks chopped off delivery time and the Summit price too. ;)
     
    sparky, Jul 10, 2006
    #3
  4. termin8ed

    termin8ed I didn't do it Staff Member

    Getting one from the local carquest. should be here from Federal-Mogul wednesday or thursday. Going to give it a shot. $230 for cam lifters and pushrods I think it was.
    I'll let you know how it looks when I get it.

    Oh, that was with intake gaskets and timing cover gasket kit too.

    Now I just have to decide if I should do the timing chain while I've got it open. Really getting sick of "learning" how the engine works.:rofl:
    Oh, and the heads...
    check the bearings...
    main seals.........



    AAAHHHHHHHHH!!!!
     
    termin8ed, Jul 10, 2006
    #4
  5. sparky

    sparky Sandgroper Staff Member Founder

    Think I was around $265 for a complete kit, customer service guy thought it included timing chain, pushrods, lifters and cam. :shrug: I just put in a new timing chain last fall. Guess I'll have a spare.

    $50 for the head gasket set from NAPA, I know I'll spend another $12 at Autozone for a 4th time on the timing cover gasket set now...
     
    sparky, Jul 10, 2006
    #5
  6. neptco19

    neptco19 That guy....


    Go ahead and get it ready to re-build in your engine class that you said you were going to take. You'll learn the machine much better and be more carefull if its your engine block under the knife and not some random block.....at least I know I did ;) Plus you'll save a TON of money on machining that you would norm. have to pay someone else to do. Only downside is having to purchase the rebuild kit to put it back together.
     
    neptco19, Jul 10, 2006
    #6
  7. sparky

    sparky Sandgroper Staff Member Founder

    I was tempted but compression on mine checked out at 125# on all 6 cylinders. I'm not gonna do any unecessary work. It's been down long enough.
     
    sparky, Jul 10, 2006
    #7
  8. BlueFlu

    BlueFlu past owner of some ecj5's

    Shheeeeesh its must be all my fault. :oops: I get mine home and running and y'all start having issues. :rofl:
     
    BlueFlu, Jul 10, 2006
    #8
  9. Rondog

    Rondog just hangin' out

    I'd do the whole motor Brian. All that missing metal had to go somewhere. Better to find it now than later.
     
    Rondog, Jul 10, 2006
    #9
  10. 66cj5

    66cj5 Jeep with no name


    :iagree: would track down the problem and fix it right (or at least rods and mains).
     
    66cj5, Jul 11, 2006
    #10
  11. termin8ed

    termin8ed I didn't do it Staff Member

    Problem was someone before me had problems and patched it up.:rofl:
    I know what your saying though. As much as I really want to drive this thing sometime this year, the heads are really " sludgy" looking. Its burning oil pretty good right now. Last time I checked the compression(2 years ago? ) it was good, but I should probably do that right now. I can hear air hissing past something when I turn it over by hand.

    Jason, I wasn't going to take the engine class just yet. I was going to take a couple more automotive classes before doing this one. Thing is they offer it on saturday from 8am-5pm.
    Really didn't want to take up the weekend with class, but with Cari being home (hopefully) half of that time maybe I'll change my mind. Specially if I can justify it by saving a bunch of money;) (both in machining, and baby sitter time for me taking class 2 days of the week)


    Well, that would free up some time for me right now. guess my other 10 projects get some attention after I push the jeep into the garage...
     
    termin8ed, Jul 11, 2006
    #11
  12. Vhunter

    Vhunter Member

    I have never replaced a cam in a engine that has already been put together and running. So, the question is, what about the cam bearings, you just use the old ones that are in the block? I have an engine that I built years ago in my running CJ2A and I would like to replace it with a stock or RV cam.
     
    Vhunter, Jul 11, 2006
    #12
  13. Rondog

    Rondog just hangin' out

    You should be able to put a new cam into old cam bearings in an engine with no problem. If the cam bearings are worn out, then that motor is really tired and needs an overhaul anyway. Cam bearings shouldn't wear out unless the motor's really taken a beating or been ran a long time with dirty or contaminated oil. Replacing them when you're just changing a cam is nearly impossible anyway, a supreme hassle. A new cam should always be installed with new lifters though.

    When you take a block into a machine shop for an overhaul, replacing the cam bearings is standard procedure because the hot tanking process destroys them. The shop will always install them. If they won't, go elsewhere.
     
    Rondog, Jul 11, 2006
    #13