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    Need oil change suggestions-gctid804960

    So my 454 crusaders dont have drain plug (as most dont) so oil changes need to happen through the dipstick tube. My manual pump tank that uses suction took me 2.5 hours yesterday to drain 1 engine. What do you all use and is it quicker? Looking for an electric pump system that WORKS. i have tried many different types in the past but they all stink. Im sick of manual pumping the oil out. Let me know. please post links to what you use before i lose my mind!!!!

    #2
    I use a manual pump to drain my Mercruiser 454. If I don't warm the oil it takes significantly longer to pump the pan dry. I have also found I am not getting all of the old oil out using the dipstick tube so I have to be careful not to overfill.

    With the engine warm I would guess it takes no more than 15 minutes to pump out the old oil. I also remove the oil filter while it pumps out, my logic is it makes it easier for the pump to draw the oil out with some way to let air in (i.e. remove the filter or take off valve cover cap). Maybe faulty logic but I have to remove the filter anyway so it doesn't hurt.

    This is what I use:

    https://www.amazon.com/Mityvac-7400-.../dp/B000JFJM14

    Comment


      #3
      Thanks, thats close to what I use and yes I also warm the oil by running the engine for about 10 minutes

      Comment


        #4
        Interesting. Do you push the hose down the dipstick tube or do you put it around the end of the tube? I use the biggest tube I can that fits snug around the outside of the dipstick tube.

        I have heard of systems that are permanently installed on the boat to do oil changes. I think they were for diesel engines although I can't imagine why it wouldn't work for your situation. Good luck!

        Comment


          #5
          If in fact there are no drain plugs installed on your oil pans you are stuck pumping out through the dip stick tube. My 5.7 has a drain plug and I've installed one of these to drain the oil. It can be routed out the garboard drain (for draining into a jug) for trailered boats or used as a suction line with a pump attached.
          Dave
          Edmonds, WA
          "THE FIX"
          '93 2556
          Carbureted 383 Vortec-Bravo II 2.0:1 18 1/4x19 P

          The rebuild of my 2556 https://www.baylinerownersclub.org/f...76?view=thread
          Misc. projects thread
          https://www.baylinerownersclub.org/f...56-gctid789773

          Comment


            #6
            You may want to make an electric pump oil change setup. I have a permanent system on my boat that I put together: http://www.baylinerownersclub.org/in...llation#605069. But there's no reason that you couldn't use a similar pump to make a portable system. I chose a gear pump instead of an impeller because they can run dry without issues . Here's the pump I used: http://www.mate-usa.com/en/product/p...-transfer-pump. The companuy also makes pre-made kits with gear pumps: http://www.mate-usa.com/en/product/pumps/oil-change-kit
            1999 3788, Cummins 270 "Freedom"
            2013 Boston Whaler 130 SS
            Anacortes, WA

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              #7
              After trying all sorts of manual products, I bought one of these over ten years ago. https://jet.com/product/detail/da7d3...a:2&code=PLA15

              I could get the oil from both 4.3's in one load. When I bought my 3818 I carefully took the lid off without removing the handy tear strip then snapped the lid, pump and all, onto a Homers bucket giving me enough capacity for one engine.
              P/C Pete
              Edmonds Yacht Club (Commodore 1993)
              1988 3818 "GLAUBEN”
              Hino EH700 175 Onan MDKD Genset
              MMSI 367770440

              Comment


                #8
                Norton Rider,

                Thanks for the link; I'm currently searching for the best oil change system and I'm liking the pump you suggested. I've read that some that use impellers start having problems when you reverse the pump.

                Alex
                Alex
                Orange County, Ca.
                2001 3988
                Twin Cummins 330's

                Comment


                  #9
                  I just had to start sucking the oil out too. I miss being able to just pull the plug in the little hose out the garboard drain. Luckily my new diesel has a sump suction hose installed. I bought one of these from West Marine and it pulled out 7 quarts in 10ish minutes. I am pretty happy with the result. It comes with a variety of options for removing oil, including dipstick tube.

                  https://www.westmarine.com/buy/west-...25?recordNum=3
                  "REEL WILD"
                  2001 2859 FNM 300 Diesel-Bravo 2
                  Anchorage, Alaska
                  If you don't like the weather, wait 15 minutes.......

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                    #10
                    Norton Rider, the pump you recommend is made in Italy and has 3/8" BSP threads. Any problem with finding fittings to make it work with NPT threads?

                    Thank you again!

                    Alex
                    Alex
                    Orange County, Ca.
                    2001 3988
                    Twin Cummins 330's

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