Oil Pump Problems

Discussion in 'Oil' started by 9R RYDER, Jul 1, 2011.

  1. 9R RYDER

    9R RYDER Member

    7
    0
    0
    Recently rebuilt my engine,once we had completed engine I have experienced no oil to the top end of the rockers. I have pulled oil pump to ensure that there is no blockage and all is clear. Also have replaced push rods all seals in pump new gaskets and still can not get oil to the rockers nor is oil returning to tank.Oil pump is in good condition with minimal scaring.All gears in pump assy also in good shape. Unable to find ANY ISSUES WITH ANY OF THE ASSY. Please inform if you have experienced this type of problem.
    Thanks 9RRYDR. .
     
  2. glider

    glider Veteran Member

    25,464
    108
    44
    May help if you tell us what engine you are referring to.
     
  3. 9R RYDER

    9R RYDER Member

    7
    0
    0
    Sorry

    It is an EVO
     
  4. glider

    glider Veteran Member

    25,464
    108
    44
  5. 9R RYDER

    9R RYDER Member

    7
    0
    0
    Tappet screen is clear and all key ways intact.
     
  6. glider

    glider Veteran Member

    25,464
    108
    44
    What's the oil pump pressure?
     
  7. 9R RYDER

    9R RYDER Member

    7
    0
    0
    I have not placed plugs in to crank over engine, just cranking to see if oil is flowing to top end. I have 5 lbs with just cranking over engine.
     
  8. BUBBIE

    BUBBIE Well-Known Member

    4,959
    83
    113
    You won't get oil to flow Just cranking it over, Especially if Newly rebuilt and dry...,, It needs to Run at a fast Idle for 2 minutes... Then it should have oil...Don't burn it up idling too long, ride it when warm,

    signed....BUBBIE
     
  9. Jack Klarich

    Jack Klarich Expert Member

    18,544
    153
    399
    Attach a master gauge and fire it up, without the engine running you are only guessing:s
     
  10. 9R RYDER

    9R RYDER Member

    7
    0
    0
    Thank you, that was what I was thinking I should do.

    Is it possible to have an air vapor lock to keep the oil from flowing?