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jamepc
08-08-2015, 03:44 PM
Hello,
Regarding a 2002 Mercury 240, I realize these a lot of discussion about bypassing the oil injection and I do plan on doing it, however I have an additional questions.
Can the oil just be recirculated back into the remote oil tank from the tube that comes out of the pump?
If I understand correctly how it works, the crankcase pressure pressurizes the remote tank so the oil gets pushed to the reservoir tank near the flywheel, correct?
So is it a bad idea to just have the oil pump outlet tube go back to the remote oil tank instead of the fuel pump?
Would the crankcase pressure stop the oil from recirculating?
Would the hole I drill in the remote tank have to be air tight to keep up the pressure?
Or does it not matter since the oil won't really have to move through the system anyways?
If it doesn't actually recirculate, is it a bad idea to have the pump spinning without oil flowing?
Would the oil in the pump get hot?
Sorry for all the questions!!
Thank you,
James

flabum1017
08-08-2015, 09:51 PM
Yes it can be done, but you will have to remover the pulse fitting from the block and put a pipe plug in it's place, remove the boat oil tank and lines then plumb the pump to circulate oil to the engine mounted tank to keep oil in the pump...... but it's so much easier to just get the pump block-off kit and remove the pump and oil tanks all together.

jamepc
08-09-2015, 07:31 AM
Thanks for the reply. I'm just thinking of the easiest way to get it back to stock if a new owner desires it. I like the idea of a total conversion and the clean look, but we may sell the boat soon and want the option of having the oil injection working.
What if I were to just remove the oil pump drive shaft and keep everything else just as is and in place?