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Is there a Oil Drain Plug on the Hino 4588 Engine??

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    Is there a Oil Drain Plug on the Hino 4588 Engine??

    I want to change the engine oil on my 4588 Pilothouse Hino marine diesels. I have not done so before so I do not know if I will have to pump the oil out or if the engines came standard with a oil pan drain plug. I prefer to drain the oil from below the engines to remove any heavy metallic particles so I was wondering if any of you guys know if there is drain plug on the Hino 250 HP engines. Thank you in advance.

    Capt. Paul

    #2
    There is a drain plug but keep in mind that there is 4 plus gallons of oil in that engine. To drain it will require you to put a pan under it and drain part of the oil then cap it while you empty the pan. This could get very messy.

    Unless you are going to install a remote line that you could hook a pump system up to. I would recommend that you just use a suction type pump to empty through the dip stick tube. You will get most of everything out and probably as much as draining through the plug.

    Access to these engines equally on either side is just not there. Don't make your job any harder than it is already going to be.
    Patrick and Patti
    4588 Pilothouse 1991
    12ft Endeavor RIB 2013
    M/V "Paloma"
    MMSI # 338142921

    Comment


      #3
      My 87 4550 has two stainless steel capped hoses attached to the drain plugs of the engine that are accessible from between the engines. When changing oil, I pump from these hoses after running the engines for a while to warm up the old oil and make sure any sediment is in suspension before pumping it out.

      Don't forget to also change the oil filters on the starboard side of each engine - unless your luck enough to have a remote filter for the starboard engine mounted on the port side of the stbd. engine!!!!

      Not sure of your set-up but you'll need to crawl around the engine room to see what you have.

      Darby

      Comment


        #4
        The engines virtually sit on the hull so there is no clearance to drain the oil. A steel braid covered hose comes up the center aisle side of the engines about a foot high from the banjo fitting installed in the oil pan where a drain plug would normally be installed. Buy a 12v self contained oil pump/ tank and go thru the plug on the end of that hose if you want to pull oil from the lowest part of the engine. You can clip the leads on the starboard engine starter terminals for power. The self contained oil removal unit will make your life bearable without having to worry about handling a drill, pump, and hose with a bucket of oil that will most likely end up splattering your carpet. You can use a small plastic container below the oil filters to catch the leakage when the filters are unscrewed. You can change the oil with virtually no mess on these engines.

        Comment


          #5
          I agree that you should warm the engines to make the oil flow better and get contaminants suspended in the oil before removal. I use a vacuum apparatus so warm oil makes the oil flow better. I have 10.25 quarts capacity to suck up and most of it is recovered through the drain lines installed by Hino. I do not use the dipstick tube-there is a dedicated drain tube on 175's that is attached to the pan drain and I thread my vacuum line into it, you might see if your engines have dedicated drains.

          Cheers,

          Comment


            #6
            Has anyone bored/drilled out the tiny opening in the end of that steel braided line on the Hino where the vacuum line firting will thread in?

            Comment


              #7
              We cut that hose and put on different fitting for a reverso pump...not sure I would drill out while in place and get metal in my oil pan
              Mark
              USCG OUPV
              1990 4588
              Carlsbad, CA

              Comment


                #8
                Originally posted by Best Decision Ever View Post
                Has anyone bored/drilled out the tiny opening in the end of that steel braided line on the Hino where the vacuum line firting will thread in?
                What tiny opening? It was a big half inch or 5/8" pipe threaded plug in mine. I used a hose barb-to-NPT fitting to connect my Reverso to both engines (5/8" fuel hose used to connect Reverso to the braided stainless hose). Regardless of your choice of Reverso or some other vacuum oil sucker, you should be able to cobble together some appropriate adapter without messing up the stainless hose and end-fitting that come with the engine. If you mess those up, have fun pulling the engines out of the boat to fix it...

                FWIW a vacuum tube skinny enough to go down a dipstick is more than small enough to fit down the stainless drain hose. I think this is how my previous owner used to do oil changes.
                Brad
                Lake Union, Seattle
                1987 Bayliner 4550 "Ark Angel"
                Hino EH700T / MG-502 / Cummins Onan 7kw
                Seattle Yacht Club

                Comment


                  #9
                  Thanks! I’m concerned a 12V 60 watt pump won’t pull the oil fast enough, on a barbed nipple threaded into the SS tube?

                  the hole in the centre of the SS tube with the plug removed is very small, 3/16”? That’s why I was wondering about drilling it out.

                  sounds like getting the biggest barb I can for the tube And keeping that hose to the pump short is the key (plus the engine oil very warm!)

                  Comment


                    #10
                    Originally posted by Best Decision Ever View Post
                    Thanks! I’m concerned a 12V 60 watt pump won’t pull the oil fast enough, on a barbed nipple threaded into the SS tube?

                    the hole in the centre of the SS tube with the plug removed is very small, 3/16”? That’s why I was wondering about drilling it out.

                    sounds like getting the biggest barb I can for the tube And keeping that hose to the pump short is the key (plus the engine oil very warm!)
                    I wouldn't mess with it. An extra few minutes of sucking oil will pale in comparison to the time you spend mopping up the mess you will make replacing the oil filter. 😁
                    And you don't want to damage the integrity of that hose end-fitting and then lose all your oil someday while you're underway...
                    My reverso sucks it out through that original SS hose in <5 minutes. That's fast enough for me.
                    Brad
                    Lake Union, Seattle
                    1987 Bayliner 4550 "Ark Angel"
                    Hino EH700T / MG-502 / Cummins Onan 7kw
                    Seattle Yacht Club

                    Comment


                    • Destiny_4588
                      Destiny_4588 commented
                      Editing a comment
                      Same love my reverso...changing the oil filter is still a PIA.

                    • Best Decision Ever
                      Best Decision Ever commented
                      Editing a comment
                      Thanks for the intel - agreed! What I did is ordered a better pump - when that arrives it will get it done! Cheers, Patrick

                    • purduepilot
                      purduepilot commented
                      Editing a comment
                      Earl has some adapters he'll sell you that will convert the EH700 to use spin-on oil filters. I forget how much he wanted, but it wasn't cheap.
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