Oil Change problems ?

8gv · 09-07-2021, 08:53 PM

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!

BroadHopper · 09-08-2021, 09:09 AM

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.

Quote:

Originally Posted by 8gv

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!

bigdog · 09-08-2021, 11:22 AM

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 !

09-07-2021, 08:53 PM	#1
8gv Senior Member Join Date: Jan 2012 Posts: 2,132 Thanks: 64 Thanked 756 Times in 489 Posts	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!

The Following User Says Thank You to 8gv For This Useful Post:
BroadHopper (09-08-2021)

09-08-2021, 11:22 AM	#3
bigdog Senior Member Join Date: Apr 2006 Location: Central MA-Gilford Posts: 1,453 Thanks: 347 Thanked 124 Times in 98 Posts	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 !