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Wimpy had a heart attack

Discussion in 'Early CJ5 and CJ6 Tech' started by termin8ed, Jun 2, 2004.

  1. Jun 2, 2004
    termin8ed

    termin8ed I didn't do it Staff Member

    Mason, MI
    Joined:
    Dec 22, 2002
    Messages:
    2,659
    Well, I think Wimpy may be done for the summer. I drove him to my brother's house(about 45 minutes) on saturday and it all went good except for a problem with low oil pressure at idle.(10-15lbs) While running it was up around 40-50. On the way back it stayed up at 40-50 the whole time.

    Fast forward to yesterday... I was moving my camper and noticed that the oil pressure was way, way down. Maybe 5lbs? :shock: revved it up a little and the pressure came up but not much at all. So I finished putting the camper away and the needle was jumping all over, up and down. 40lbs-5lbs-25lbs-0-30...

    The oil level should be good since I just added some saturday night. Is this typical for oil pump failure, or possibly something else?

    If its something easy I'm up for it soon. I just don't want to tear into wimpy's engine just yet since it needs to be rebuilt and I'd rather do it all at once. I was planning on doing that later this year or winter after I had Achilles running.

    Please tell me its something stupid like changing the oil and cleaning the sludge out. I haven't changed the oil since it burns soo much. I pretty much changed the oil at tellico. :rofl:
     
  2. Jun 2, 2004
    jpflat2a

    jpflat2a what's that noise?

    Riverside CA
    Joined:
    Jul 30, 2003
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    7,860
    First and foremost, check the oil level. Fill if necc.
    Electric gauge or manual gauge?
    If manual gauge, disconnect oil line and blow air through to make sure no crud in line, or at back of gauge. Reconnect and restart
    If electric gauge, install test manual gauge and take reading
    the engine should have made some tappet noises if truly low oil pressure
    did you hear any strange noises?
    plugged up oil filer or oil lines?
     
  3. Jun 2, 2004
    Hippo393

    Hippo393 Jeepless

    Charlotte, NC
    Joined:
    Sep 22, 2002
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    1,130
    AAAAAAAHHHH, not Wimpy!! :shock:

    If you get thru the easy troubleshooting stuff, I'd HIGHLY recommend dropping the pan to inspect the oil pick-up screen. If you had sludge or other obstruction down there for a whle it'd look like this:

    [​IMG]

    Low oil pressure is one of those silent killers....it'll run fine for a finite time period and then suddely shut you down. Good luck!
    -Alan
     
  4. Jun 2, 2004
    termin8ed

    termin8ed I didn't do it Staff Member

    Mason, MI
    Joined:
    Dec 22, 2002
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    2,659
    I forgot about that Jim. It does have a slight knock. :cry: I have a mechanical gauge as well. I'll try blowing it out, but with that tapping, I'm fearing the worst. I'll probably check that oil pan too. Its burning so much oil that I can't imagine sludge getting a chance to build up, but its worth a shot.

    I definatly won't be running it untill I get it figured out. Not planning on posting pictures like your :v6: Alan. ;)
     
  5. Jun 2, 2004
    termin8ed

    termin8ed I didn't do it Staff Member

    Mason, MI
    Joined:
    Dec 22, 2002
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    2,659
    And the oil filter isn't installed on this engine.
     
  6. Jun 2, 2004
    Hippo393

    Hippo393 Jeepless

    Charlotte, NC
    Joined:
    Sep 22, 2002
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    Really? Then what's in its place preventing oil geyersing (new word :D ) out the oil pump?

    Brian I hope it's nothing major, lest you revert back to the 4-cyl engines. :rofl: But if all else makes you scratch your head, drop the pan. You can always put it back. :D There'll be a baffle to remove also before you can access the pickup screen. I had similar fluxuating oil pressures before it locked up. Good luck buddy. :beer:
    -Alan
     
  7. Jun 2, 2004
    Dootle

    Dootle New Member

    Carson City, NV
    Joined:
    Sep 23, 2002
    Messages:
    28
    Sorry to hear Brian, really, but here in Nevada we're will'in to bet on anything, and so, at your expense,

    I've got a buck and a brewsky on 'your about to spin a bearing'. Ok.........this will hurt to re-live.....but maybe it will ease your pain,

    One blustery fall day.......runs fine, some oil press. loss noticed here and there, does'nt seem consistant. tappet-type noise kinda slight at first... then you know it's not going to be a 'tap' anymore 'cause she's a knock'in worse and worse and a sickenning un-natural metal shear-tear-grind kinda 'KNOCK' and then it just sounds as though you are surely dropp'in pieces out the back as you go. It's still running for some ungodly reason, but the noise now is beyond normal human tollerances and you shut'er down. then of course, one simple thought, ....................****.

    If I'm right, please email me so I can give you my mailing address to send money and beer.

    On a more promissing note however, because you didn't just sit there like a complete idiot with it a whirling around to long, there was only minor damage. In this case, a well deserved re-build made it all better again. (boo-boo go away)

    I'm a month away from hearing the 'purr' of a healthy F134.

    Rob
    ------------------------
    '71 CJ5 225 V6 building
    '58 CJ5 F134 blowed-up boom
    '53 M38A1 F134 corn field warrior
    '47 CJ2a L134 damn, just sold
    '53 BT3-C got fish'in poles ready
    '53 XM105E3 spartacus of my yard
     
  8. Jun 2, 2004
    Hippo393

    Hippo393 Jeepless

    Charlotte, NC
    Joined:
    Sep 22, 2002
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    1,130
    Yup! What Rob described is pertinier to what I experienced. 'Cept I kept driving it because I wanted to get 'er home. The crank sheared in half (see "V6 carnage pics" on the intro section). Not sure whether or not I had spun a bearing (I have no idea what that is) but I did have serious sluuudge in the pickup screen. :(
     
  9. Jun 2, 2004
    Dootle

    Dootle New Member

    Carson City, NV
    Joined:
    Sep 23, 2002
    Messages:
    28
    Hippo, what I was describing turned out to be the main bearings of the connecting rods to the crank shaft. a 'spun' bearing is where one of the two halves (bearing) actually spins around the crank so that both halves are together on one side of the crank. Causes all kinds of nasty trouble and these bearings are probably most of what you found in your sludge of carnage.

    Had my '71 V6 blow up on me also a few years ago, that time it was a Very high milage failure which caused a broken connecting rod resulting in it punching a hole thru the side of the block. That event was decisive......driving along, and BANG !! everything ceased to go in one sudden moment. caused me to lock it up and nearly go into a ditch. Scared the hell out of me. The F134 thing just pissed me off.

    Rob
    ______________
    '71 CJ5 225 V6 building
    '58 CJ5 F134 blowed-up boom
    '53 M38A1 F134 corn field warrior
    '47 CJ2a L134 damn, just sold
    '53 BT3-C got fish'in poles ready
    '53 XM105E3 spartacus of my yard
     
  10. Jun 2, 2004
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
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    9,278
    Don't you have a dipstick with full indication on it? When I bought my CJ5 it used 3 qts. of oil in 50 miles, so don't discount how much oil you're burning. My first thought is low on oil, since it came on kinda gradually, from your description anyway.
     
  11. Jun 2, 2004
    termin8ed

    termin8ed I didn't do it Staff Member

    Mason, MI
    Joined:
    Dec 22, 2002
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    2,659
    I check the oil level religously. I haven't looked at it yet, but I will 99% garrentee that it isn't low oil.


    He's still burning oil out the tailpipe, so there's at least enough oil to keep him running. :rofl: When it stops burning oil, thats when I have to worry.

    Dootle,
    That about describes it, except I was fortunate to be at home when it got that bad. Haven't gone past the slight tapping yet.
    If it is as you described it and bearing failure would have happened, would fixing the oil pump fix everything so it'll survive another 10+? years? Or is the damage done, and the rebuild neccesary?
     
  12. Jun 2, 2004
    SandhillMike

    SandhillMike Moderator

    Archer, Fla
    Joined:
    Oct 25, 2003
    Messages:
    246
    Brian, the damage is probably done. when you pull the pan, pull some of the rod and main caps to inspect the bearings and crank. if they are ok, no scoring and gouges, you can maybe run it a little longer, you really won't hurt it any worse if the oil pressure comes up with a new pump. If the pressure doesn't come up with a new oil pump, accept your fate and do the job it needs.
     
  13. Jun 2, 2004
    termin8ed

    termin8ed I didn't do it Staff Member

    Mason, MI
    Joined:
    Dec 22, 2002
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    2,659
    :oops: :oops: :oops: :oops: :oops: :oops: :oops:
    Well, Glenn's the big winner on this one fortunatly. :beer:
    That 1% is really low oil level. Which means it went thru almost 2 quarts of oil from my brothers house to mine. 45 minute drive. It was almost at the fill line, about a half quart down when I left his place. I put the only quart I had around in and the pressure jumped back up to normal.

    I think I'll pull the pan anyways just to check and make sure no debris is in the pan. Like I said, a rebuild is planned for the next year, so I guess I'll baby it till I can get it rebuilt.

    There's just a pipe plug preventing the "geyersing" :D :hurrican: ;)
     
  14. Jun 2, 2004
    jpflat2a

    jpflat2a what's that noise?

    Riverside CA
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    just curious
    what oil are you burnin' ?
     
  15. Jun 2, 2004
    termin8ed

    termin8ed I didn't do it Staff Member

    Mason, MI
    Joined:
    Dec 22, 2002
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    2,659
    whatever's laying around. :rofl:
    I try at least 10w 40 but I think the last stuff was 30w?
    I try using as heavy an oil as I can without putting gear lube in, but it really doesn't seem to make a difference. Maybe a few more miles out of the thicker stuff.
     
  16. Jun 2, 2004
    TheBeav1955

    TheBeav1955 Member

    Wyoming, Mi
    Joined:
    Apr 14, 2004
    Messages:
    233
    Just a thought you might try a quart of Lucas Oil Stabilizer will sometimes help alittle pricey like $7 but I've seen it prolong things. Not a cure but a bandaid. Might keep you going for a while longer
     
  17. Jun 2, 2004
    vanguard

    vanguard Guest

    Maybe some 20W50.
     
  18. Jun 2, 2004
    willysnut

    willysnut Banned

    Newnan, Ga.
    Joined:
    Oct 8, 2003
    Messages:
    656
    By the way- great word choice!!
    I might have said "spewing or belching".
     
  19. Jun 2, 2004
    termin8ed

    termin8ed I didn't do it Staff Member

    Mason, MI
    Joined:
    Dec 22, 2002
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    2,659
    Might have to see about getting thicker oil up around that 20w50. worth a shot I guess.

    On a side note...
    I took the head off my spare F head and everything looked really clean inside of it. One cylinder had some rust in it, but the rest were good. Not sure why the one was rusty. the others were shiny.

    Got me wondering if I should replace all the gaskets(which kinda fell apart while taking it apart) and seals and swapping engines out later in the summer/fall. As long as nothings broken on it, its got to be better than what I'm using now.

    The jeep it came out of was only a few thousand vin #'s away from wimpy's and it looked like it had been in a wreck. the engine does look good though.
     
  20. Jun 2, 2004
    blevisay

    blevisay Oh Noooooooooooooooo! Staff Member

    Portland Tn.
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    Sep 20, 2002
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    Rebuild time.............
     

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