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Thread: Oil pump problem?

  1. #1

    Oil pump problem?

    This is my problem, after adding 5-qts of oil 15w-40, I start to prime the pump/block I added oil in the oil filter. I started to prime with a cordless drill and battery went dead (only happens when you want to use them), I grabed the Sears 3/8 4.0amp drill and started to prime (w/shaft primer in pump) the intake is still off so I can see. The pump was turning fine, then felt the pressure, the drill started to smoke. I set the oil pump pick-up at 1/4" from the bottem of pan. Will the oil restrictors I installed in the back of the block do this? or is my pump bad, or pickup too close to pan, or needed a thinner oil? BBC 496,solid roller cam/lifters, roller rockers. Thanks I want to make sure before I install the engine in the car, Thanks again

  2. #2
    Senior Member RACING JUNKIE
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    Jul 2007
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    jjam, IMO your drill is too small. I always use a 1/2 inch drill, and it drags it down. It takes a lot of power to turn an oil pump, and when you fill it with oil it gets that much harder, a 3/8 drill doesn't have the oomph required. again JMO.
    No matter where you go, there you are.
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  3. #3
    Senior Member RACING JUNKIE
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    May 2003
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    Quote Originally Posted by suicidebomb
    jjam, IMO your drill is too small. I always use a 1/2 inch drill, and it drags it down. It takes a lot of power to turn an oil pump, and when you fill it with oil it gets that much harder, a 3/8 drill doesn't have the oomph required. again JMO.
    I agree
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
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  4. #4
    Thanks, this will save me from taking the pan off. Thanks again

  5. #5
    Senior Member MASTER BUILDER
    Join Date
    Dec 2005
    Location
    alberta,canada
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    166
    I always thought 3/8 clearance for the oil pump to pan

  6. #6
    Senior Member RACING JUNKIE
    Join Date
    Mar 2008
    Location
    falkville al
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    1,766
    i burnt up a old 1/2 in. drill then bought a black and wrecker. burnt that up too. i was terrified my motor was a boat anchor. bought a dewalt. still have it and my motor.


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