oil change and engine not priming

Engine, Trans & Driveline

  1. Dennis H

    Dennis H FBBO Gold Member FBBO Gold Member

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    I fill mine about half and lube the seal. It’s kinda hard to maneuver it quickly without spilling. More so now that the Hotchkis forward curb feeler is in place.
     
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    • Johnpat

      Johnpat Well-Known Member

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      Always pre-fill fi
       
    • HEMI-ITIS

      HEMI-ITIS STREETER

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      Been there,,,,,,,done that:cursin:
       
    • HEMI-ITIS

      HEMI-ITIS STREETER

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      Fran,I would pull the distributor and gear and prime it before taking the pump off!!I now use a system one filter,pop the cap and pull the filter,,,inspect,clean and reinstall.

      016.jpg
       
    • Fran Blacker

      Fran Blacker FBBO Gold Member FBBO Gold Member

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      I assume the oil will leak by the rotor shaft? The housing has an o-ring.
       
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      • 69a100

        69a100 Well-Known Member

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        That's why I let it sit to soak in, tons cleaner without the spillage.
         
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        • denpsim

          denpsim Member

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          Thanks guys for your support some good ideas that will help. I am new to mopars
           
        • miller

          miller FBBO Gold Member FBBO Gold Member

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          I go on the list, who install the oil filter dry, except a wipe of oil on the rubber seal.
          I've been fooling with these things for 50 years. Unless the oil pump is flat wore out, even with the filter off, the pump holds it's prime. Just don't take four days to do it!
          Also have never 'packed' a pump, simply oiled up good, mount it, then pre-oil.

          If the engine has been sitting for years, yes, pre-oil. Otherwise, should have oil pressure in a matter of seconds.
           
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          • hangn0ut

            hangn0ut Well-Known Member

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            Take the volume of the pressure side of the oil system. Oil pump,galleries,bearings, rocker shafts. My guesstimate, 1 pint or less. Except for the filter. Filter capacity can be anywhere from a pint to well over a quart. How many rotations of the oil pump to fill that filter? And the pump spins at half the crankshaft speed. At a nice slow 600 rpm idle that crank spins at 10 times per second. So a few seconds extra of no pressure can easily mean 20-30 revolutions without oil.
             
          • OSDart

            OSDart Well-Known Member

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            Guess I've been defying the odds for the last 50+ years. The only time I fill an oil filter is when breaking a new engine in on the run stand or in the car.
            Other than that, if it's been sitting for years, I'll pull the distributor and drill for oil pressure. Pressure drops to zero as soon as the drill stops. By the time you re-stab the distributor, adjust timing and fire it off, it'll take a few seconds for oil pressure to build again.
             
          • Dennis H

            Dennis H FBBO Gold Member FBBO Gold Member

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            Agreed. It’s more a mental health issue for me. I need to know that I snugged the filter hand tight and the gasket was lubed. Also that i snugged the drain plug. Nobody touches but me. I number the oil quarts to be sure. You know, anal stuff like that.
             
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            • coloradodave

              coloradodave FBBO Gold Member FBBO Gold Member

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              Even with dual 990cca batteries, my Autometer mechanical gauge will not indicate pressure while cranking. Upon starting, it instantly shows pressure. I am using Royal Purple synthetic 5W30 with a K&N premium filter. The weight of oil to run has the most to due with bearing clearances and intended use. My engine shows very similar oil pressure whether I'm using 5W30 or 20W50 and whether the outside temperature is 40* or 110*.
              I think if it had good pressure during the break-in I would just go ahead and start it. I'll bet the pressure comes right up.
               
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              • mopar 3 B

                mopar 3 B Well-Known Member

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                Cold starts hit the 60 psi mark before it gets enough fuel to fire on. If using a mechanical gauge do not know what voltage has to do with the oil pressure reading?
                 
              • hangn0ut

                hangn0ut Well-Known Member

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                I believe he means it is spinning fast with 2 batteries
                 
              • coloradodave

                coloradodave FBBO Gold Member FBBO Gold Member

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                ??? Obviously, voltage has nothing to do with the reading on a mechanical gauge. And, as hangnOut ^^^^said, I just was saying my engine turns over at a pretty good clip...