Oil Change problems ?
 

I tried to change my engine oil today, using one of those 'hand pumps', which connects over the dip-stick hole. I started pumping, and got about 3 qts out before it just stopped. I tried to pump more, but just heard sucking sound and air pumping.

Pump is brand new, engine is a MerCruiser 4.3L, year 2000.
FYI, the boat is level to the ground on trailer. and so is engine.
Thoughts on how to get the rest of oil out ?

On a same note, I was going to change the oil filter at the same time.
The marina gave me a standard QuickSilver filter (Q03) spin-on type for my engine, 'short' type, about 3" in diameter, maybe 2 1/2" high.
When I checked filter mounted on engine block, I found much to my surprise, the filter to be about 2 2/3" wide, by about 4" long, and Wix brand
Does anyone else have this type filter ?

Thanks for you feedback, much appreciated !

You never get it all out thru the dipstick tube. Mine takes five qts and I get 4 out. always warm it before pulling. I use a Jabsco with a motor on the bucket. I’ve heard the stand up hand pump ones work better but never tried it. As for the filter look it up in the manual and get the number. Then head to NAPA and have them cross reference

There is a possibility that you have an opportunity to drain more oil out through the hull drain plug.

My 2002 SeaRay had a V6 Mercruiser.

There was an oil drain hose attached to the oil pan.

The hull drain plug had a snap swivel and some braided wire connecting it to the drain hose.

You may have this hose but it may no longer be attached to your drain plug.

A little contortion with a flashlight may reveal the hose and the possibility of threading it through the drain hole.

Mine drained very slowly due to the oil in the hose not getting as hot as the oil in the oil pan.

Good luck!

I use the same concept. It works like a charm if you trailer the boat. In fact some marinas suggest the same to boat owners.
It's a bit tricky getting to the oil plug with the engine in the boat but it can be done. Well worth it.
Dipsticks normally does not reach the bottom of the pan so not all oil is drained.

Thanks all for your great feedback !

I'm going to try to attach a smaller plastic tube 'down' into the dipstick, to the bottom of the oil pan, then connect that tube to the pump tubing.

Hopefully, I can make all the connections tight, so the pump will work,
it's worth a try. Otherwise, I'll just go with what I've taken out already.

Lot's of good boating still left for the season, enjoy !

I have a “Topsider” vacuum-based oil extraction device. It includes a narrow tube that goes down the dipstick tube to touch the bottom of the oil pan. Let me know if you’d like to borrow it.