1998 Merc 150 EFI oil alarm

[parepadarappa]

Ok, full disclosure, I know I messed up somewhere. Last fall as I was winterizing my boat I didn't realize that I had the kill switch on, and it wouldn't start, so I ended up draining the battery attempting to crank it. While I was doing that I started getting the oil alarm (continuos rapid beeping). I did my research over the winter, came up with a plan of attack, started by checking the onboard oil tank float switch, tested good, then swapped the green lead off the #2 coil to the #6 coil, then tested the oil pump motion sensor and got a continuous 5.3v. Figured that must be the problem since I wasn't getting that the once every two revolutions that I should have got. So, ordered the replacement, put it all together, still getting the alarm. Am I looking at a new oil injection control module? Please tell me there's something painfully obvious that I'm missing. The engine is also running like crap. Doesn't idle well at all, must keep it on fast idle to keep running. Also plenty of blue smoke, and the oil line that runs from the pump to the high pressure pump reservoir is constantly 3/4 full with just an air bubble at the top by the pump discharge. I also read somewhere about a plastic gear on the oil pump that may be stripped but I can't find it on any drawings. Any help here would be greatly appreciated. Thanks in advance.

 

[roleksy]

The plastic gear is inside the block, that drives the oil pump. It is a common failure. My 1997 crapped out, and I now mix the oil/gas. PIA, but I know it's getting oil.

 

[parepadarappa]

Thanks, I'll take a look at that today then. Also read somewhere that the fuel/water separator alarm was wired into this. I don't believe that but I'm going to drain it anyhow just to make sure. Already a week into fishing season and the boat being OOC is killing me.

 

[parepadarappa]

Well, pulled the oil pump off, pulled the engine over by hand to check rotation of the oil pump and lo and behold all it does is sits there and occasionally you can feel a tooth grab. So, needless to say the plastic internal gear is shot. So the question is, how do I delete the oil injection so I can run premix. Or does anyone have any idea how to locate one of the electronic oil injection kits that marine solutions makes, I can't seem to get their website www.marinesolutionswi.com to work, at least on my phone. Thanks so far for the help.