[SNiC]

What is the "best pump"to extract 40-50W through dip stick tube?
TIA
SNiC

[HaulsBalls]

Save yourself the headache and just drain it into the bilge.  Then capture it from the drain plug hole and wash out the rest. Then replace your pan plug with a valve that will allow you to connect a hose for future servicing. I purchased mine off Amazon, I think it was made by Fumoto and it is designed to work on engine oil pans. Just check the thread pitch and dimensions when ordering. 50w through the dipstick tube will be a nightmare even if the oil is warm, been there.

[GT Jets]

Pull the oil pressure sender, put a barb fitting the the hole, add a hose and crank the motor with the ignition off...

I used to do it like that with the oil cooler line. Takes about 15 seconds with a 5/8" cooler line.

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[SNiC]

Save yourself the headache and just drain it into the bilge.  Then capture it from the drain plug hole and wash out the rest. Then replace your pan plug with a valve that will allow you to connect a hose for future servicing. I purchased mine off Amazon, I think it was made by Fumoto and it is designed to work on engine oil pans. Just check the thread pitch and dimensions when ordering. 50w through the dipstick tube will be a nightmare even if the oil is warm, been there.

Thanks, but not enough clearance for a wrench or socket. Currently I have to raise the motor about an inch to remove. Once removed, not enough clearance for a "quick valve"....I have one hanging on the wall.

Pull the oil pressure sender, put a barb fitting the the hole, add a hose and crank the motor with the ignition off...

I used to do it like that with the oil cooler line. Takes about 15 seconds with a 5/8" cooler line.

Interesting.......

[Wayne Zighter]

I put this pump together from crap I had sitting around the shop. 1/4" synflex air line down the dipstick tube and it'll suck it out in a couple minutes

[mobboss]

I put this pump together from crap I had sitting around the shop. 1/4" synflex air line down the dipstick tube and it'll suck it out in a couple minutes (Attachment Link)

Now that is a sweet little set up!

[86Hallet]

I bought mine from West Marine it goes thru the dipstick hole and works great.