Oil injection system

[Siebert Outdoors]

I've got an older Merc with an oil injection system.  Well its not working correctly the boat will idle and get oil but if I try to go faster or get on plain it starves for oil.

My ?'s

Should I have it fixed?

or

Un hook the system and premix the gas/oil so I dont have the costly repairing the system. Then save enough money to have it fixed.  I took the system apart last night and cleaned it up just to see if it was dirty or clogged.  It all looked good and appeared to function correctly.  

[Way2slow]

If that's the older remote system that mixes at the oil tank, save yourself a motor, junk it and premix at 50:1.  I am curious what gives the indication it's starving for oil.  Usually about the thing you have to go by for that is when the motor starts making all those strange noises that say's you are fixing to spend a bunch of money.   If it's sounding the alarm, could just be a bad sensor, but it doesn't matter, you still need to junk it.

[Siebert Outdoors]

Where the oil line comes out of the pump it forms a air pocket where it is not pumping oil into the motor fast enough. Then the no oil alarm goes off. It does pump enough for an idle speed. I've checked for air leaks and couldnt find any. The oil is making it into the reservoir but the oil pump just wont pump it into the engine.

Its an 86 black max.  Still runs strong just this little problem.  If I do remove it it will free up a ton of space in my boat.

What would you recommend disable the alarm and just unhook the hoses and leave the pump on the motor or completely take it out and build a plate to bolt over the area it was on.  Its a real simple pump design.  It wouldnt take any thing to remove the hoses and run an new ones.

[Way2slow]

On my dads old 88 I-6 115, I just took the tank/pump unit out of the boat and ran another hose from the gas tank to the primer bulb in the splash well.

I wouldn't unbolt anything off the motor, just bypass/unplug what's needed to keep the alarm from going off and premix.  You might check with somebody that knows a lot more about your motor than me, since I don't mess with many black motors before doing this though.  On the old OMC's you can just unplug the sender in the tank and the wires going to the pump and leave everything else alone, Or take the tank out to get it out of the way.

[Siebert Outdoors]

Thanks Way2slow.  I'm going to stop in the shop next day or 2.  I might even just pay them to unhook it and make sure its done right.

[Siebert Outdoors]

UPDATE,

Went to the outboard repair shop. The good bad and ugly.

He was telling me that there is a plastic drive gear inside the moter that comes off the crankshaft. He said that the gear is typically the first thing to go and requires a complete tear down and rebuild to fix that small gear. He said it was very expensive.

His solution was a few parts cost me 25 dollars for a plate, hose, and a few other parts to tear out the oil injection system and start mixing the oil myself. He said years ago he ordered a bunch of these little kit assemblies because of this. 25 dollars and pre mix or approx 1k for repairing the gear.

he was nice enough to print off some schematics and show me in detail of how to rip out the old oil injection system and replace each part. He said it was very easy to do. After I completely dissasembled and reinstalled the oil pump this should be cake work.

My benifits here will be less parts on the motor and more space in the rear compartment.

[bassmaster8100]

Premix it yourself, your dont wanna mess up that engine had a cousin that was having that problem couple of years ago but he wouldnt listen kept running it like that , the oil injection eventually went out completely without him knowing it, well just lets say it cost him alot of money to have that engine rebuilt.