Removing merc oil injection
 

I have a new to me. 2001 mercury saltwater 200hp.
I think id like to remove the injection in searching info for this motor i saw somthi g on how to do this but cant find it now. I dont want to fudge it up.

Why?

Merc's oil injection uses a mechanically driven oil pump (as opposed to a diaphragm pump), has two safeties that will set off the warning buzzer, and is quite reliable if you don't run the motor over 6000 rpm. I've got a '91 150XR4 that still has it and it uses way less oil than my 1996 200 that doesn't. I'm thinking of putting it back on the '96.

In the very unlikely case that it fails while you're offshore, pour the oil from the oil tank into the fuel tank and drive home. I just don't see a down side to keeping the oil injection.

My $0.02
Dave

just a thought ,
im not getint a warning frim the tank when I lowered the sender im going to have a merd mechanic friend look at it tomorrow . ive had snowmobile where the injection failed and left me stranded , I had a Yamaha oujtboard with no troubles though so im just thinking now ill see how it looks from the mechanic. this is a newly bought motor btw

Some of the older Mercs had composite gear drives which are known to go boom.
Not on the drive either.

no offense:

every time I read one of these discussions,i laugh !

why ??

seriously,why would you want to remove the oil injection ?

as long as I've been in this business,20+yrs,i've yet to see an engine fail ,due to the oil injection system.motor failure is often misdiagnosed - detonation,from a lean fuel condition/overloaded situation,is often diagnosed as a failed oil pump - other problems have caused powerhead failures as well...example,overheating,running the motor,while it's overheating...

Johnson/evinrude "vro" pumps,when the diaphragm fails,the oil flows like texas - causing an over oiling situation...

Yamaha/merc - these are a little different - the way old,mid 80's merc had a gear problem,the gear would slip - the alarm would sound,alerting no oil,for a brief shot - this was the symptom...

do the systems fail ? anything mechanical can and will fail,yes,they will fail - but,the alarm system has a check.when the key is turned,the alarm sounds,this is the check - no sound ?? check it out...

the failure of oil injection systems,is like the great ethanol myth - both are old wives tales -like storing a battery on a concrete floor...

do yourself a favor,leave it alone...

Ive got a manuale that says its got plastic gears.its a 2001.
I dont even know if it working is why

I have a Tohatsu 90a that is suppose to have a bullet proof injection system. I removed the injection sytem just for peace of mind. Im glad I did.

You mean to tell me I can store my battery on concrete? :D I been sticking boards under them for years. Not sure what you mean about the ethanol myth but don't think you will talk many boaters into liking that water adsorbing fuel line rotting stuff.

I had a 2001 merc 200 a couple of years ago and had mine took off too. A very knowledgeable merc mechanic said he would do it if it was on his boat, but he build high performance outboards for racing so there is a different mind set there. I always liked to run my oil a little heavy due to better lubrication, but it dose hurt performance some to do this.

I still have a couple of munched plastic oil injection gears that I save to show people and I've seen a ton of them parting out 2.0, 2.4 and 2.5L Mercs in the last 8 years.

In an unrelated topic Angelina Jolie removed both of her breast to prevent breast cancer. I think that with her doing that and others removing oil injection systems under the guise of preventive measures I will have my testicles removed so I will not get testicular cancer.