[THEFERMANATOR]

Originally Posted by steplift20

I'm still using my oil injection 1988 150 mercury No problems maybe I should keep my mouth shut I did have some issues one issue was there's a valve on the engine I think it's a check valve it would load up with oil and could not start the engine I changed the two valves Problem solved I would like to bypass it for safety reasons but I keep putting it off It runs fines What you can also do which I have done is while the engine is running loosen the cap on the oil tank that's on the engine and you should push out any air in there and then the oil should start to overflow Then you know it's working, the tank on the engine should be full

That only tells you if the crankcase check valve is good and pressurizing the supply tank. The actual oil injection pump can still fail, no alarm sound, and bye bye engine. Mercury actually used a good system, but cheaped out on the 2.0/2.5l engines and used that nylon clamshell drive gear. Suzuki, yamaha, and the bigger Mercs all used a bronze crank gear, and they were very reliable systems.