MR-1 Oil Extraction

[ncnmra]

I have a 2008 212X (MR-1 engines). I can only seem to get out about 2L (~2Q) of oil using an extractor. I have checked that the engines are level, and I've also tried poking my oil extractor at various angles down into the oil reservoir. I have heard of people being able to extract 3+ quarts, so I'm not sure what I'm doing wrong? It doesn't help that the oil reservoir is rather large/wide, so a soft tube tends to bend/kink in there (unlike a dip stick tube).

I even tried attaching a piece of stiff wire to the extraction hose and trying to find the deepest spot and it didn't get any more. Is it better to have the engines tilted either forwards or back?

I decided to just do 2x 2L oil changes, so hopefully that gets most of the old oil out.

Any advise?

 

[tdonoughue]

My official advice: Don't sweat it much. Sure, we want to get out as much as we can--that gives a better change. But changing 2Q is better than changing 0Q. And you are changing it probably after far fewer revolutions than you do in 5k miles with an auto (providing you change at least annually).

So, yes, try to learn how to get 3Q. But don't worry when you only get 2. That will be fine.

 

[212s]

I had the same problem, could only get 2 liters (quarts) out at first. Tried pulling and pushing back and forth about 15 times, but no luck. Then I pushed it in till it stopped, and twisted the hose left/right and it slid down another few inches and boom, another 1.5 liters came out.

 

[mrcleanr6]

My extractor tube is basically like a bicycle brake cable housing without the cable inside so it flexes but its also rigid to push. In the reservoir there is some type of what seems like a sheet metal plate that you can sneak it by the edge and get to the bottom of it to get all the oil out. If your using a regular hose or something bigger than an pencil though it will never happen and like mentioned, dont really worry about it

 

[zipper]

As mentioned above, try manipulating the suction tube so it will go in more. If you want a "complete" change of oil in your MR-1's, try pulling the drain plug on the oil cooler. Hard to get to, but you will get just about all of the oil out of the system. https://jetboaters.net/threads/oil-change-on-mr-1-how-to-perform-a-complete-drain.3805/ I fill up my extractor doing a two engine oil change this way.





Edit: Pictures are of the first oil change I did as owner, 4+ years ago.

 

[buckbuck]

I have to put the boat on a steep driveway to get more than 2 qts. Yamaha now recommends 10w-40 for the MR-1.

 

[ncnmra]

Thanks guys! Try as I might I couldn't get any more than 2L. I decided to do each engine 2 times (therefore 2L + 2L for each engine). It is somewhat wasteful, but the second change was just as dirty as the first!

I've been doing my own oil changes for the past 4 years and I seem to remember getting more, but I had a different extractor. I used a pump version this time, which worked REALLY well, except for the fact of finding the bottom well.

At one point, I took the thin oil extractor hose (which is very soft), and stuck a stiff wire INSIDE it in hopes of finding a deeper spot. No luck. It is disappointing how the oil tank is built.

@buckbuck : which way was the boat leaning on the driveway to get more than 2 qts? Bow up, or bow down?

I've been using the Yamaha 10W-40 ever since I bought the boat (6 years ago). I shopped around for alternative 10W-40, but it seems to be a pretty specialized oil, and the Yamaha version is easy to get around here and actually the cheapest anyway.

 

[buckbuck]

Bow up works for me. I can find that slightly deep portion of the oil cooler by poking around. Make sure the oil is warm before changing as that helps.

 

[Seadeals]

It is also good practice to monitor your oil levels on the dipsticks when in the water and running/warm. We all like to say just put back what you take out to prevent the dreaded overfill; but engines do burn oil over time and we can unintentionally reduce the oil quantity oil change after oil change as the boat ages. The volume of oil in the engine can drop appreciably with that practice without recognizing you are consistently reading the lowest end of low on the dipstick.