Different method to siphon out old oil?

[Ajax]

Most people have been recommending that I draw out the old engine oil with a vacuum pump via the dipstick tube.

This post is from another forum:

Use the 3/4" plug on the starboard side of the engine at the top of the crank case and below the carburator. That's what it is for. Use a simple hand pump with plastic hoses. Yes it can be a bit messy but not if your careful. Can't imagine waiting to take out three-four quarts of oil through the dipstick!

Early engines had a built in pump that stayed screwed into this access point.

Buy the Moyer Marine repair manual. It shows how to do many maintenance procedures.

I haven't checked my engine yet, but is there such a plug or is this guy having a fantasy? Do people pump out via the dipstick tube because it's easier or just lack of knowledge about this plug?

[Dave Neptune]

The plug

Ajax, yes indeed it is there and on some old engine there was a pump there for draining the oil from the factory. Where you drain the oil ie the plug or dip stick tube is more a matter of access that anything else. I use the dip stick because it is easier to get to.

Doesn't matter!

Dave NEptune

[Kelly]

Moyer Marine oil change kit

If you're not thinking of this kit, I can highly recommend it. Easy oil changes from the permanently mounted tube that reaches deep into the oil pan. No mess and easy to install and store when not in use. The plug indicated by the red arrow is where the kit is installed.

I use a canister type hand pump to change the oil and have yet to spill a drop.

Available in the Moyer Marine catalog.

[ILikeRust]

I use one of these:



Purchased from West Marine. It works great at sucking the oil out.

I put the little suction tube in the side plug that you refer to. To be sure I got as much as I could, I also stuck it in the dipstick tube. Pretty much just shoved it into any oil pan opening I could get at and pushed it in as far as I could, until no more oil came out. Worked great.

[sailmakered]

I removed the transmission cover & sucked the oil out with a Harbor Freight pump http://www.harborfreight.com/heavy-d...ump-98384.html chucked into a drill. Worked great but still spilled some new oil pouring it into the giant gaping hole.....seeesh

[Ajax]

I removed the transmission cover & sucked the oil out with a Harbor Freight pump http://www.harborfreight.com/heavy-d...ump-98384.html chucked into a drill. Worked great but still spilled some new oil pouring it into the giant gaping hole.....seeesh

I thought you added oil at the breather cap? (See black arrow)

[ILikeRust]

It all goes to the same place.

[edwardc]

Be aware that mounting anything in that pan drain plug can interfere with an adjustable main jet on the carb.

I have the Indigo oil filter kit, and it uses that drain hole as the return point for the filtered oil. In addition, it has the deep-pickup tube, and a tee with a valve, so it can be used as the "suck point" for a vacuum oil change system. I use it that way and it works great.

When I went to add an adjustable main jet to my carb, I discovered that the hose-barb and hose attached to the end of the deep-pickup passes directly in front of the main jet, making it very difficult to access and adjust. I re-plumbed the barb, adding a 45 degree street elbow to move it out of the way, giving easy access to the jet adjustment.

[hanleyclifford]

Yeah, I can relate to the problem!

[Esgbradford]

Most people have been recommending that I draw out the old engine oil with a vacuum pump via the dipstick tube.

This post is from another forum:

Use the 3/4" plug on the starboard side of the engine the top of the crank case and below the carburator. That's what it is for. Use a simple hand pump with plastic hoses. Yes it can be a bit messy but not if your careful. Can't imagine waiting to take out three-four quarts of oil through the dipstick!

Early engines had a built in pump that stayed screwed into this access point.

Buy the Moyer Marine repair manual. It shows how to do many maintenance procedures.

I haven't checked my engine yet, but is there such a plug or is this guy having a fantasy? Do people pump out via the dipstick tube because it's easier or just lack of knowledge about this plug?

On my boat, the carburetor is on the port side. That is, it is on the right side of the engine as you are looking toward the stern.

[dvd]

Rusts siphon pump works best in my opinion. My oil comes right out through the dip stick tube and only takes a few minutes. There is zero mess and you can take the siphon pump apart and pour into an oil collection. I do it and don't even spill a drop. I also change my oil at least twice maybe three times a year.

dvd

[smosher]

I use the same, makes it real easy either cold oil or warm. Cold oil means you can have another beverage

[67c&ccorv]

I have the MMI oil change kit hooked up to a TMC (reversible) gear pump permantly mounted on the carb side of the motor to pump oil out or in.

[sastanley]

I use the same, makes it real easy either cold oil or warm. Cold oil means you can have another beverage

You know...the many times I've helped Ajax with his boat(s) or sailed with him, I am not sure I've ever seen him have a beverage.

[edwardc]

I removed the transmission cover & sucked the oil out with a Harbor Freight pump http://www.harborfreight.com/heavy-d...ump-98384.html chucked into a drill. Worked great but still spilled some new oil pouring it into the giant gaping hole.....seeesh

One of the nice things about my "backwards" V-drive engine is that it has the oil fil cap and the dipstick relocated to the transmission cover and nearby. Shoving a siphon tube down thru the transmission to the low point of the sump does not require removing the cover!