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No Oil Pressure

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

  1. Johns1967CJ5

    Johns1967CJ5 Sponsor

    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. Alan28

    Alan28 Well-Known Member 2022 Sponsor

    I hope that it is just the gauge which is broken!
     
  3. Johns1967CJ5

    Johns1967CJ5 Sponsor

    Gauge works. I'm not that lucky
     
  4. Alan28

    Alan28 Well-Known Member 2022 Sponsor

    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. Glenn

    Glenn Kinda grumpy old man Staff Member

    Is the bearing in backwards?
     
  6. jpflat2a

    jpflat2a what's that noise?

    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. Glenn

    Glenn Kinda grumpy old man Staff Member

    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. Glenn

    Glenn Kinda grumpy old man Staff Member

    Who assembled the engine?
     
  9. Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    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. jpflat2a

    jpflat2a what's that noise?

    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. Glenn

    Glenn Kinda grumpy old man Staff Member

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

    Howard Eisenhauer Administrator Staff Member

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

    Johns1967CJ5 Sponsor

    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. Johns1967CJ5

    Johns1967CJ5 Sponsor

    Good call. You win The prize
     
    Glenn likes this.
  15. Johns1967CJ5

    Johns1967CJ5 Sponsor

    Well I had her looking good for 3 days anyway


    [​IMG]


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  16. Johns1967CJ5

    Johns1967CJ5 Sponsor

    How its supposed to be

    [​IMG]
     
  17. jpflat2a

    jpflat2a what's that noise?

    Glenn for the win !
     
    47v6 and Glenn like this.
  18. Glenn

    Glenn Kinda grumpy old man Staff Member

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

    Glenn Kinda grumpy old man Staff Member

    Do we have oil pressure yet?
     
  20. Johns1967CJ5

    Johns1967CJ5 Sponsor

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

    [​IMG]

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