Mercury Conversion from oil injection

[Blueeyes]

I just bought a cheap boat with a 1990 Mercury 150 V-6, and have an oil injection alarm problem. The previous owner was 'pretty sure' it was a sensor problem, so disconnected the alarm. I'm not willing to trust his judgement, so I searched the internet for info on this problem last night, and found this site. I read many posts and replies that I believe have given me a crash course on the oil injection system. Since there is apparently at least some oil making it into the engine, I'm guessing my problem is either the sensor, or the 2 psi check valve. I have decided to play it safe and disconnect the oil pump for now and go to pre-mix. I may fix the problem later, but I want to fish, and plan to launch the boat in 3 days for my maiden voyage. I read and printed Kenthrussel's post from 9/10/2001 (remember that day?) on how to remove the oil system, but I have one additional question that wasn't covered in that post. I have twin 35 gallon tanks with a fuel filter/water separator. Can I run pre-mixed fuel/oil through the same type as straight fuel, or do I need to change to a different type of filter/separator?<br /><br />TIA for any help!<br />Blueeyes

 

[orca]

Re: Mercury Conversion from oil injection

G'Day. In over 20 years of working on outboards I have NEVER Seen a merc V6 oil injection system fail.(This will start a rash of replies and I will not include autoblend in that statement) <br />If you are not sure if the system is working then fill your tank fuel tank at 50:1 and run the motor keep a check of the leval in the oil tank. With the V6 merc make sure that the caps on both oil tanks are tight and the gaskets are good. Make sure the top tank is full. <br />Some early V6 motors had the oil injection alarm going off in rough water there is a fix for that and I will post a reply if needed.