Draining oil

FuzzDaddy

Member
Jul 8, 2020
155
Boat Info
2002 Sea Ray 230 Signature
Engines
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!
 
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.
 
Warm the motor first.
That drain hose should be attached to the drain plug with a short piece of wire.
 
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
 
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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
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!!
 
I have a 5.0L, but this is the oil drain hose and plug right?
 

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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
 
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

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?
 
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!!
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.
 
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?
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.
 
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.

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.
 
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
 
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.
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.
 
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.
 
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.

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.
 
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.
 

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