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Oil pump?'s

Discussion in 'Early CJ5 and CJ6 Tech' started by trickpatrick, Sep 6, 2008.

  1. Sep 6, 2008
    trickpatrick

    trickpatrick Done? LOL

    North Idaho USA
    Joined:
    Nov 29, 2006
    Messages:
    838
    I seemed to be going from one new problem to the next to get to the driving my baby stage:rofl:

    When I bought my jeep it had about 20 psi of oil pressure at best.
    it has sat for about 9 months without running.
    I have drained the oil and replaced most of all the gaskets.
    Including the oilpan ,and the pickup looked good, clean.

    FWIW: 225 v6

    Anyway I have been briefly starting it now as part of putting it all back together.
    Was having gas line prob.'s

    Got that all fixed and noticed no oil presure.
    I have put in a new mech. gauge and line.
    Last thing I tried was taking off the line at the block and starting it.
    no oil comes out at all.

    New filter and full of oil.
    I havnt taken off a valve cover to look but it looks dry in the fill and breather holes.
    No tapping or clicking noises.

    Could the oil pump be dry?
    I didnt take it off or mess with it.

    I know about vasaline but didnt think I should need to do that..

    If I take it apart can I rebuild it without takeing the timing cover off??
     
  2. Sep 7, 2008
    Dan66cj5

    Dan66cj5 Member

    Oregon
    Joined:
    Feb 20, 2003
    Messages:
    235
    I'm not sure what your problem is.. but you can take the oil pump/gears out without taking the timing cover off. I once put in a high performance oil pump kit in my :v6: a long time ago.
     
  3. Sep 7, 2008
    bergy9

    bergy9 Jeep Maffia, CJ 5 Chapter

    Lincoln City, OR
    Joined:
    Jul 2, 2007
    Messages:
    184
    I think I would pull the distrib, the pin that drives the oil pump could be gone or even the distrib may not be down all the way. The oil pump should be able to be rebuilt with removing the timing cover.
     
  4. Sep 7, 2008
    Walt Couch

    Walt Couch sidehill Cordele, Ga. 2024 Sponsor 2023 Sponsor 2022 Sponsor

    cordele, Ga.
    Joined:
    Mar 29, 2007
    Messages:
    5,926
    How long did you let it run after changing oil and filter? It will take a little time running to fill new filter and oil journals etc. The 20 lbs oil press--- is that at idle hot or reved up?
     
  5. Sep 7, 2008
    kaiser_willys

    kaiser_willys Well-Known Member

    Joined:
    Jan 7, 2007
    Messages:
    1,524
    sounds like it has lost its prime, jasper man told me how to fix it on a engine we installed, let me see if i can rember right, thinking something like 3 psi of air to the crankcase with the oil line/sensor removed coil wire removed and turn the engine over a couple times with the starter, sounds weird but it worked, not absoulty sure about the air psi though i put in 3 psi because i cant rember and dont want you to blow out a gasket or seal, may need more if you cant get a good seal with the air hose, x2 on checking the oilpump shaft and making sure the dist is all the way seated
     
  6. Sep 7, 2008
    michigan_pinstripes

    michigan_pinstripes I'm not lost, I'm wandering

    Clarkston MI...
    Joined:
    Aug 20, 2003
    Messages:
    605
    Not sure why a prime would be lost from sitting. It would literally have to leak out the pump gasket surface to drain the housing.

    You can pull the dist and turn the gear shaft with a home-made prime tool. broke flat screw driver or filed off spade bit inserted into a vacuum hose. chuck it up in an electric drill and turn clockwise until you feel the resistance from the oil.

    There should be an article around here somewhere.
     
  7. Sep 7, 2008
    Sledgehammer

    Sledgehammer Sure, I'll try it

    Ellery, Il
    Joined:
    Jun 7, 2006
    Messages:
    341
    I just rebuilt mine in the engine swap process and the gasket for the oil pump that came in the kit was much too thin causing the cover to sandwich the gears in the oil pump. They wouldn't spin at all. They were Victor Reinz (sp) gaskets. Just something to be careful of.
     
  8. Sep 7, 2008
    trickpatrick

    trickpatrick Done? LOL

    North Idaho USA
    Joined:
    Nov 29, 2006
    Messages:
    838
    It drips out the bolt for the spring on the pump would this drain the oil pump?

    Also just brain storming could I take off the filter and squirt oil in the oil filter hole right into the pump?
     
  9. Sep 8, 2008
    AKCJ

    AKCJ Active Member

    Fairbanks, Alaska
    Joined:
    Aug 12, 2003
    Messages:
    1,036
    I would go ahead and use the priming tool - I made mine from a pc of round stock (very easy to do). Pull the distributer and use an electric drill motor. If this works then you're done - easy fix.

    If priming doesn't work then I guess you need to pull the pump & check it out.

    Regarding your question about pulling the filter and putting oil in the hole. I've never tried that or even heard of anyone trying it. But I guess it wouldn't hurt anything right? More brainstorming - if something was wrong with your filter (plugged, valve stuck, other) that might cause this problem? Try a new one.
     
  10. Sep 8, 2008
    michigan_pinstripes

    michigan_pinstripes I'm not lost, I'm wandering

    Clarkston MI...
    Joined:
    Aug 20, 2003
    Messages:
    605
    I don't think it would work due to the check valve but maybe. If you have a remote cooler adapter, you remove one line (cant remember which) and place it in a jar of oil. I haven't tried this one yet but saw it on the GN forum.
     
  11. Sep 8, 2008
    captain cj

    captain cj Member

    Crystal Beach...
    Joined:
    Sep 27, 2005
    Messages:
    331
    I agree, re priming is easy and it will determine the next coarse of action, or none at all. Start with the basics and then move on to more complex and expensive actions.
     
  12. Sep 15, 2008
    trickpatrick

    trickpatrick Done? LOL

    North Idaho USA
    Joined:
    Nov 29, 2006
    Messages:
    838
    Thought I'd post a little followup.

    Pulled the dissy.

    tryed the drill and screwdriver trick.
    had pulled out the oil line and fitting to make sure it wasnt plugged.
    Shot oil out everywhere.:rofl:.
    All over my new D30:evil:
    So the pump works.
    Cool thing I guess was the oil pump was full of old oil and I purged this out.:)

    So I guess the dissy wasnt turning it.
    Reinstalled the dissy correctly.
    Now when running, could see oil coming up the plastic line to the fire wall.

    Still no reading.

    Figured the pump was bad or bigger problem.

    Just for giggles I decided to bleed the air out of the line.

    guess what the compression fitting on the back of the guage had went in crooked and was pinched...


    So Dissy not in right, and pinched line.

    Getting new compression fitting tomarrow to try.
     
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