Draining oil

Discussion in 'General Maintenance/Repair Questions' started by FuzzDaddy, Jul 11, 2020.

  1. FuzzDaddy

    FuzzDaddy Member

    37
    Jul 8, 2020
    2002 Sea Ray 230 Signature
    5.7 Mercruiser
    Hi all,

    I’m about to do an oil change on my 5.7L. I see a long tube under the motor that connects to the oil pan. I was thinking of inserting wire through the drain hole to pull the oil tube out and drain the oil that way. Does this sound right?
    Thanks everyone!
     
  2. BillK2632

    BillK2632 Well-Known Member GOLD Sponsor

    Jun 25, 2009
    Lake Norman, NC
    1999 185 Bowrider,
    Mercruiser 4.3, Alpha I
    Yes, that’s what it is for. They drain slow, but work. Other option is buy a pump and pump it out of the dipstick.
     
  3. Espos4

    Espos4 Well-Known Member

    Jan 1, 2017
    Long Island NY
    2007 240 Sundeck
    350 MAG Bravo 3 W/DTS
    Warm the motor first.
    That drain hose should be attached to the drain plug with a short piece of wire.
     
  4. FuzzDaddy

    FuzzDaddy Member

    37
    Jul 8, 2020
    2002 Sea Ray 230 Signature
    5.7 Mercruiser
    My drain hose isn’t attached to the drain plug. I asked the dealer about that when I was buying parts. He said he never heard of that. Can someone take a pic in their spare time so I can see how to attach it? Maybe I need a different drain plug
     
  5. Espos4

    Espos4 Well-Known Member

    Jan 1, 2017
    Long Island NY
    2007 240 Sundeck
    350 MAG Bravo 3 W/DTS
    C697FCAD-8A4B-44D5-B438-6C1E0424BB57.png
     
    Chris-380 likes this.
  6. Espos4

    Espos4 Well-Known Member

    Jan 1, 2017
    Long Island NY
    2007 240 Sundeck
    350 MAG Bravo 3 W/DTS
    If your dealer never heard of this drain hose being attached to the drain plug, please think twice about letting them do any work on your boat!!
     
    M Prod, Henry Boyd and Chris-380 like this.
  7. emunns

    emunns New Member

    23
    Nov 5, 2015
    Seattle
    '07 Sea Ray 240 Sundeck
    Mercruiser 5.0
    I have a 5.0L, but this is the oil drain hose and plug right?
     

    Attached Files:

  8. bbwhitejr

    bbwhitejr Well-Known Member SILVER Sponsor

    Apr 14, 2013
    Lake Lanier GA
    2007 44DB
    Cummins QSC 8.3s
    Yes, that is your oil drain hose. It is designed to be connected to the garboard drain plug and pulled through the hole (boat out of the water) to drain the oil. You can remove the plug and hook your pump to the hose to drain.

    Bennett
     
  9. Henry Boyd

    Henry Boyd Well-Known Member GOLD Sponsor

    Apr 24, 2007
    Newburyport, on the peaceful and serene Merrimack
    ‘09 Sabre 38 Hardtop Express “Serenity”
    Volvo D6 w/IPS450 Pods
    Yeah, but that’s supposed to be attached to the oil pan drain underneath the engine. What’s it doing up on top of it?
     
  10. Lazy Daze

    Lazy Daze Well-Known Member TECHNICAL Contributor

    Apr 21, 2009
    PA
    Various
    Various
    Yes! This setup was used for a long, long time. What happens over time is that the SS wire breaks from the installation and removal of the garboard drain plug over time.
     
  11. Lazy Daze

    Lazy Daze Well-Known Member TECHNICAL Contributor

    Apr 21, 2009
    PA
    Various
    Various
    Henry, surprisingly, it's actually long enough to do just that. For someone that keeps their boat in the water and wants to use that hose for oil changes, this is a way to do it. Fish it up to the top and secure in place. Although, truth be told, the difference in the amount of oil removed through the hose or the dipstick is measured in ounces. The hose's real advantage is in the ease (cleanliness) of changing the oil when on land - zero possibility of spilling used oil inside the boat.
     
  12. Henry Boyd

    Henry Boyd Well-Known Member GOLD Sponsor

    Apr 24, 2007
    Newburyport, on the peaceful and serene Merrimack
    ‘09 Sabre 38 Hardtop Express “Serenity”
    Volvo D6 w/IPS450 Pods
    Really? I’m not disputing, just surprised. When our 496 was pulled to replace the transom assembly, the hose was only long enough to just get through the garboard. Since oil was only changed by pumping through the dipstick, I elected to just plug the pan when it went back.
     
  13. bbwhitejr

    bbwhitejr Well-Known Member SILVER Sponsor

    Apr 14, 2013
    Lake Lanier GA
    2007 44DB
    Cummins QSC 8.3s
    On our ‘06 260DA, I pulled it up and wire-tied it the remote oil filter lines and hooked the oil change pump right to it. Warm the engine and super easy.....when I had the oil pan replaced on the 350Mag, I had them install a new one.

    Bennett
     
  14. Lazy Daze

    Lazy Daze Well-Known Member TECHNICAL Contributor

    Apr 21, 2009
    PA
    Various
    Various
    Typically those hoses come through the garboard hole about 1-1/2' to 2' - maybe you were shorted somehow :) ? Or, maybe the drain plug on a 496 is further forward than it is on a small block? I honestly don't know, but that would explain why your hose didn't come through the hole as far as I would expect.

    But, yeah, the first time I routed a hose up to the top of the engine, I was surprised, too. It was one of those things that I wanted to try just to see if it would work.
     
  15. skibum

    skibum Well-Known Member

    Jul 30, 2007
    Perry Hall, MD
    2005 Sundancer 260
    496 Magnum HO
    I removed my depth sounder and dropped the hose through it to drain the oil once. It turned out to be only slightly faster than draining it with it going through the garboard so I never did it that way again. But if the hose is too short, it might be an option.
     
  16. scoflaw

    scoflaw Well-Known Member

    Aug 10, 2011
    cape cod mass, cape coral fl
    1999 Powerquest legend 260 sx
    502 mpi Bravo 1
    I would be very concerned about all that milky oil coming out of the breather.
     
    M Prod likes this.
  17. Henry Boyd

    Henry Boyd Well-Known Member GOLD Sponsor

    Apr 24, 2007
    Newburyport, on the peaceful and serene Merrimack
    ‘09 Sabre 38 Hardtop Express “Serenity”
    Volvo D6 w/IPS450 Pods
    Up here we pull the drain plugs for winter storage so any water that gets past the shrink wrap will drain out. I didn’t like leaving the plug dangling on the chain, so I would disconnect it. From that I found the hose would only extend about 6-8 inches through the garboard.
     
  18. Leardriver

    Leardriver Active Member

    293
    May 24, 2016
    Denver, CO
    2004 270 Sundeck 8.1 Bravo III
    5.0, 5.7, 6.2 8.1 Bravo III over the years
    On my 496, on a trailer in the barn, I pull the plug to drain out of the garboard plug hole into bucket, and come back in the morning. It is 125 degrees in there in the summer, and it flows pretty well. It is slick and clean to use that oil pan drain hose.
     
  19. emunns

    emunns New Member

    23
    Nov 5, 2015
    Seattle
    '07 Sea Ray 240 Sundeck
    Mercruiser 5.0
    Yes, for sure. I have another thread asking questions about that :(
     

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