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No Oil Pressure

Discussion in 'Jeep Truck and FC Tech' started by Johns1967CJ5, Jul 28, 2019.

  1. Jul 28, 2019
    Johns1967CJ5

    Johns1967CJ5 Sponsor Sponsor

    Northern NJ
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    I cant seem to get oil pressure to read on a remote gauge on a newly rebuilt 226. I dropped the pan and pulled the pump. Put in oil and spun shaft with a drill the oil flew across my shop so the pump works.

    I'm wondering if this is the cause ? This is the rear of the cam before I put in the expansion plug. I would think that the hole should be covered by cam but I showed it to Mike at Kaiser willy's and his engine guy said the way I had it was correct. Any input before I put this pan back on ??

    [​IMG]
     
  2. Jul 28, 2019
    Alan28

    Alan28 Well-Known Member Sponsor 2019 Sponsor

    Châtillon en...
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    I hope that it is just the gauge which is broken!
     
  3. Jul 28, 2019
    Johns1967CJ5

    Johns1967CJ5 Sponsor Sponsor

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    Gauge works. I'm not that lucky
     
  4. Jul 28, 2019
    Alan28

    Alan28 Well-Known Member Sponsor 2019 Sponsor

    Châtillon en...
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    Well, that was the 1st thing to look at. Control the controls. Then you will have the help of all forum specialists. Be patient, the solution will come. Then, maybe, some money involved. That's our Jeep-guys life.
     
  5. Jul 30, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

    Apopka, Fl
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    Is the bearing in backwards?
     
  6. Jul 30, 2019
    jpflat2a

    jpflat2a what's that noise?

    Riverside CA
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    I don't see how oil pressure could build with such a large opening to contend with.
    Doesn't look right.
    And I'm not that familiar with that engine.
     
  7. Jul 30, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

    Apopka, Fl
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    When I rebuilt mine I had the machine shop install the cam and valves so can only say I agree doesn't look right and can't see oil pressure being able to build at all.
     
  8. Jul 30, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

    Apopka, Fl
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    Who assembled the engine?
     
  9. Jul 30, 2019
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member Sponsor

    Tantallon, Nova...
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    It's messy but I've done this.

    Put the pump back on but leave the pan off.

    Either spin the pump with a drill (with the pickup in a container of oil) or pump oil into the main gallery through a passage port.

    Look underneath & see where the oil is coming out- fresh bearings will weep, something on the loose side but still ok should dripdripdrip.

    If there's no gushers & you still can't build oil pressure it has to be your pump.
     
  10. Jul 30, 2019
    jpflat2a

    jpflat2a what's that noise?

    Riverside CA
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    So Howard you are saying that rear area of the camshaft in the picture is correct ?
    Is that a drain back to the pan ?
     
  11. Jul 30, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

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    It should be easy enough to determine if it's a drain back into the block.
     
  12. Jul 30, 2019
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member Sponsor

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    Not sure to be honest with you. Stick a wire down it & see if it comes out anywhere?
     
  13. Jul 30, 2019
    Johns1967CJ5

    Johns1967CJ5 Sponsor Sponsor

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    So the problem was not the pump. What happened was the machine shop put the back cam bearing in backwards. He lined up the hole with the drain. The bearing should be the other way with the oil over the galley. Soooooo. Pulling the motor and taking it apart .... again
     
  14. Jul 30, 2019
    Johns1967CJ5

    Johns1967CJ5 Sponsor Sponsor

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    Good call. You win The prize
     
    Glenn likes this.
  15. Jul 30, 2019
    Johns1967CJ5

    Johns1967CJ5 Sponsor Sponsor

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    Well I had her looking good for 3 days anyway


    [​IMG]


    [​IMG]


    [​IMG]
     
  16. Jul 30, 2019
    Johns1967CJ5

    Johns1967CJ5 Sponsor Sponsor

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    How its supposed to be

    [​IMG]
     
  17. Jul 30, 2019
    jpflat2a

    jpflat2a what's that noise?

    Riverside CA
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    Glenn for the win !
     
    47v6 and Glenn like this.
  18. Jul 30, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

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    Wow! I was actually right. :D
     
    jpflat2a and Twin2 like this.
  19. Aug 2, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

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    Do we have oil pressure yet?
     
  20. Aug 2, 2019
    Johns1967CJ5

    Johns1967CJ5 Sponsor Sponsor

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    I'll let you know tomorrow, I pressurized the oil galley and it all looked tight

    [​IMG]

    [​IMG]
     

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