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Oil Priming, RB26

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  • #1

    Oil Priming, RB26

    Trying to prime the oil system but I must have an air lock at the pump. I have this Greddy sandwich plate installed with a cooler. Cooler&lines have been filled but still no luck popping any pressure on the gauge. Quick question... what line on the plate is the pressure feed from the oil pump? Top or bottom? I want to pressurize the line to try and reverse bleed the system.

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  • #2
    Take the filter off the sandwich plate and put oil down the center port (where the filter threads on to)

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    • #3
      That's the oil return though?

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      • #4
        I think I was still asleep when I posted that lol. Any ways, I had the same issue one time. I took the oil filter off and used a suction gun to pump oil into the port on the right side until it started running back out (meaning oil pump and main oil gallery were full) helps to put oil into the return as well to fill the oiling system to prime faster too.

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        • #5
          I've always just assembly lubed the engine and then cranked it over a few times with the starter to move some oil. Pressures shouldn't really register until running. Maybe I've been doing it wrong lol
          “Hey, come on, its a car right? No. It’s a symbol of your history, its a thread of continuity from which you came to where you are. It’s important that you don’t want to forget who you are.” -Dr.Phil in "Love the Beast"

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          • #6
            Quick trip to the fitting store and I had the engine primed in seconds. I would say this was the BEST possible way to prime the system and I should put together a real good How-To.

            This will work with any external cooler setup.
            Locate the oil feed line to the cooler. On the greddy sandwich plate its the top one.
            Remove line from cooler.
            Install a -10AN male to hose barb male onto the line.
            Plug the cooler with a -10AN plug.
            Fill your oil plunger and push through. This will be pushing the oil backwards through the system. I got about half way through the pluger until it became hard to push.
            You then want to rotate the engine backwards about a half turn.
            You will see oil pooling up into the cylinder head. Your system is primed
            To help clear the plunger and line, rotate engine backwards about a full turn. This will pull some oil back so you don't make a mess when you reinstall your line to cooler.
            Low oil pressure light went out even before i turned the engine over.







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            • #7
              I once called accusump tech line because I was curious and asked if I can use the accusump to prime the engine. They said yes, and here are the steps:

              1. Open the air valve and make it stay open, then use a clean rod and push the piston inside all the way to the air end

              2. Close the air valve. Now the air pressure should be 0 and the piston is all the way pushed to the air side. Now fill accusump with oil

              3. Once it is filled with oil, install the shut off valve and stay it in shut position. Oil should now be contained.

              4. Connect the accusump to the oil gallery (oil filter inlet) with a hose

              5. Charge the air side to 80 psi

              6. Now, when you open the shut off valve, you get 80 psi of oil pressure without even cranking the engine! It is now primed

              But I don't know anything about the air lock etc. Valuable info up there ^

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              • #8
                ^good idea. Is that just a run-of-the-mill grease gun?
                “Hey, come on, its a car right? No. It’s a symbol of your history, its a thread of continuity from which you came to where you are. It’s important that you don’t want to forget who you are.” -Dr.Phil in "Love the Beast"

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                • #9
                  Have a look at www.accusump.com

                  I am definitely installing it on my car. From my research a manual valve gives the most protection. In theory if the oil pump fails it will provide an extra 15-30 seconds of lubrication.

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                  • #10
                    Can make an aftermarket ECU rev limit engine or shut engine off if oil pressure drops to 0 (or whatever you set it to on the ECU).

                    Can disconnect the CAS and use starter to crank engine over until oil reaches the turbo's, etc. A procedure that's used to prime new turbo's or turbo with oil before starting engine.
                    RESPONSE MONSTER

                    The most epic signature ever "epic".

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                    • #11
                      crack the oil filter but dont take it off. just so the rubber seal isnt seated. remove spark plugs and start cranking dont crank longer thank 15 seconds and let the starter cool for 10 seconds.

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                      • #12
                        what i did on my rb25 was loosen the top oil line on turbo and turned crank by hand until oil came out. didnt take that long.
                        - Adam

                        :
                        http://forums.gtrcanada.com/gts-project-cars/44846-project-nashzilla-r32-gt-t-neo.html

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                        • #13
                          All good guys. My method up top worked flawless. And didn't even require cranking the motor over a bunch. I would recommend what I did to anyone else wanting to prime their fresh engine

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