oil change

[GroovyNautique]

ok I know this is ridiculous, but I replaced my pro boss engine in my 1993 SN with a zero hour GT40 (310hp) this year. I winterized it tonight and then tried to drain the oil. When I put the drain hose down and opened up the drain plug, nothing came out! Is there something else I have to do to drain the oil (obivously)? I didn't see anything evident coming out of the engine. There was a yellow piece that I was unsure of though.

Any help is great!

Thanks!

[j2nh]

Oil showing full on the dipstick?
Look for a hump on the oil drain line. make sure the drain line comes off of the pan and right to to the drain plug.
Take a small diameter wire and run it up the drain line, maybe something is stuck in the line.
Put some suction on the line and see if that does the trick.

Last summer I started using an extractor that goes through the dipstick. Never going back to the quick drain again.

[GroovyNautique]

ran a wire up the drain and all is well. thanks!

I'll have to look into the extractor. I hate crawling around underneath dealing with the drain hose.

[WakeSlayer]

Extractors are way better. I used to use a manual one and used a Jabsco last weekend. Amazing.

[j2nh]

I use something similar to this:

http://www.iboats.com/Moeller_Fluid_...view_id.341308

I just finished winterizing two 196's, one with the excal and one with the 409. After extracting I ran the drain hose down and tried to get more oil out of the pan, in both cases it was less than one oz.

Really nice to use if you keep your boat on a lift. Extract after use when the oil is warm and ready for new oil and filter the next Am.

[Flipside]

Couldn't agree more with the extractor! I had similar problems trying to do oil change and running the hose through the bilge. The engine was good and hot (not warm) and I did not use a Fake-Lake to "warm it up". I ran it on a river. Anyway after crawling around trying to get hose to the bilge drain....nothing. I did not stick a coat hanger up the hose to ensure nothing was clogging it however, but did ensure there were no kinks and that there was a good incline and no humps. I sucked on the hose to create a suction but abandoned that quickly to avoid a mouthful of oil (no cheeky remarks please!)

So I went to West Marine and bought an oil extractor. I used it for my V-drive too which is wayyyyyyy so much easier. If you do the oil changes yourself, go and get one of these. I hear that even if the oil is warm it takes a long time for the oil to drain out of the hose. It takes 15 min with an extractor! The one I bought connects to your battery and has a good electric pump that drains into a bucket. Clean, and no mess.

[NautiqueJeff]

I have heard of people connecting these extractors to the drain hose. That way you're draining from the bottom instead of pulling oil up through the dipstick tube. Could possibly remove more oil as well.

[WakeSlayer]

The Jabsco (Monica) I used pulled 7 quarts out of my 502 in 3-4 minutes. I used an old hand version (Linda) the last couple years and took at hour or more not fully warmed up. My drain hose has never worked, and I will not try it again.

[BP22]

I have heard of people connecting these extractors to the drain hose. That way you're draining from the bottom instead of pulling oil up through the dipstick tube. Could possibly remove more oil as well.

This is how I change mine. I run the extractor hose as far as I can into the drain tube and it works great. Clean and easy.

[TRO]

I have heard of people connecting these extractors to the drain hose. That way you're draining from the bottom instead of pulling oil up through the dipstick tube. Could possibly remove more oil as well.

i just did my 2008 zr6 this way and it worked awesome. extracted everything in about 5-10 minutes. there's a link to the thread that i got the idea from in the maintenance section. i'll see if i can find the link.

[TRO]

here ya go, i used the nipple and hose clamps and it connected nicely to the drain hose.

http://www.planetnautique.com/index....amp;highlight=

[jpduster]

I wouldn't have thought boats and engine combo oil changes could be so different. When I did the oil change on 08 210 ZR6 it was just a matter of following the manual; feed the drain hose thru the hull open it up and let the oil drain out. Less than 10 mins straight into an empty oil container. (cold motor)

[AirTool]

Less than 10 mins straight into an empty oil container. (cold motor)

10 minutes from a cold engine? Did you measure how much oil came out?

Were you over full when you added the new oil?

[j2nh]

I have heard of people connecting these extractors to the drain hose. That way you're draining from the bottom instead of pulling oil up through the dipstick tube. Could possibly remove more oil as well.

I was curious about that so I experimented on both my 409 and our clubs excalibur last week. Did both through the dipstick with the extractor and then took the oil drain line and ran it into an empty container. Both engines gave no more than 1oz each out the hose. Probably not much more than was in the hose to start with.

Two big pluses with the extractor are you can do it on a boat lift and the other is that the bilge is never completely dry and water in the bilge tends to follow the drain line down and contaminate the oil container.

[AirTool]

.....Could possibly remove more oil as well.

I was curious about that so I experimented on both my 409 and our clubs excalibur last week. Did both through the dipstick with the extractor and then took the oil drain line and ran it into an empty container. Both engines gave no more than 1oz each out the hose. Probably not much more than was in the hose to start with.

I would suggest extracting through the hose. It is not so much the volume of oil that makes the difference but the fact that the ounce or two left behind will contain more sludge that couldn't be "lifted" out. Over time, this stuff will accumulate in your pan. The best way to change the oil would be to suck out hot oil through the bottom drain connection.

I'll probably switch to this method on the next go 'round. I've been draining hot overnight.

I've got a home made extractor I made I've used for a mercruiser with no drain plug, my PCM tranny, auto power steering, etc. Only problem it is a 1 quart GLASS jar ...so not to safe and very risky with respect to making a mess.

So...extracting is nice....but better from the bottom of the pan.