How do I prime 5.4 triton remand?

Discussion in 'Engine & Performance' started by craig sargood, May 19, 2019.

  1. Flexpedition

    Flexpedition Full Access Members

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    The engine rebuilder surely test ran the motor before shipping it, right?

    You can pull the fuel pump fuse if desired, but holding the gas pedal to the floor will have the same end result. The engine will crank but never actually fire with WOT condition.
     
  2. craig sargood

    craig sargood Full Access Members

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    Yes, they test them
     
  3. Greg Coleman

    Greg Coleman Member

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    Some auto parts stores that rent tools are now carrying engine oil primers. This is basically a tank you fill with oil then pressurize with air. Screw the hose into the oil pressure switch and open the valve.
     
  4. craig sargood

    craig sargood Full Access Members

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    Hello all, need some more help, I’m at priming stage, and needed some questions answered, hopefully you all are at home doing nothing today. 1) when priming motor (I’m turning over with key, fuel dump harness disconnect at tank) will I see oil pressure on the dash gauges?? Also should I see oil inside the valve cover(looking through the oil fill hole)???
     
  5. stamp11127

    stamp11127 Super Moderator Staff Member

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    Usually no oil pressure on the gauge while cranking. I also doubt you will see any oil spraying on the valve train. Once the engine cranks up it will be a different story.

    During the old days we would prime the oil galleys with the distributor out and a power drill with a home made attachment for driving the oil pump on small block Chevy's. Once we had oil coming up to the rockers we were good to reinstall the distributor, time the engine and fire it up. Of course this was with open headers & around midnight during the week. We had a good neighborhood back then, no one complained.
     
    Last edited: Sep 8, 2019
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  6. craig sargood

    craig sargood Full Access Members

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    Lol, nice to have good neighbors. Thanks for responding stamp. I do think I may have a problem though, maybe you or anyone can help. So last weekend I tried the whole priming process, and I didn’t see pressure or see oil in valve cover, so I chickened out starting and decided to wait to try again this weekend. I tried earlier today for a good 20-30 minutes cranking with a full and charging battery. Cranking for 15-30 seconds then waiting for approximately 3-5 minutes for starter to cool. Didn’t see anything again. I then decided to check oil filter, completely empty/dry. So I went to local parts store and asked them for opinion. They recommend removing plugs and valve cover. I came back , pulled pugs and coil packs, put small amount of oil in each cylinder and tried again, still didn’t see any oil in filter or anywhere. From what I understand or think I do, the oil goes from pan to pickup to pump to filter to rest of engine?? So I tried cranking with filter off, nothing. I attached a short rubber hose to the center of filter adapter and filled hose with oil, tried cranking(thinking that maybe it had some type of air lock or that it should shoot out of rubber hose) still nothing. According to the manufacturer (powertrain products ) they sim test these engines for oil pressure and compression,I’m starting to poo in my pants a little. I’ve done a lot of work and tried to take every extra step to not have any issues, what does everyone think?????
     
  7. TobyU

    TobyU Full Access Members

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    Fill the filter with oil first then crank it to see if oil light goes off in a few seconds.
    Other than that, you can pull the sending unit out and screw in a fitting and pump oil into the system that way.
     
  8. stamp11127

    stamp11127 Super Moderator Staff Member

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    Not as an insult but make sure there is oil in the pan. Pretty sad if the "new way" of priming an engine is with an external pump. To me that would indicate a crappy pump design.

    As stated fill the filter, prime with an external pump, install a mechanical gauge and fire it up. You should have oil pressure in less than 1-3 seconds.

    We cranked over a 7.3 diesel with the turbo off the pedestal once which resulted in oil hitting the 16 ft shop ceiling. And this was just with the starter. All of us looked in amazement at what that pump was capable of doing.
     
  9. craig sargood

    craig sargood Full Access Members

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    Absolutely has oil, has 5.5 quarts. Called engine builder today, they said to pump oil through system. So I guess I’m pumping oil now, probably a dumb question, but Should i drain oil from pan and pump all 5.5 in through sensor port?? I really hope this works.
     

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