Evinrude Variable Oiling Test?

[GeorgeDossett]

I just bought a Stratos Bassboat with a '96 Evinrude 130 HP OB. Previous owner didn't trust the autmatic oiling system and premixed all the gas. I have filled the oil tank and run the engine an hour or two through a tankfull. The oil however barely went down in the reservoir. Now I don't trust it either and am premixing myself. There are no alarms going off and no wires are disconnected. I have heard that marking the level then running it is the best test but, as I said, it hardly goes down. Any wisdom out there would be appreciated!

 

[seahorse5]

Re: Evinrude Variable Oiling Test?

There are 3 tests that you have to run to test the pump assembly. They are explained in the service manual.<br /><br />You have to test the NO OIL alarm, the oil delivery amount, and the prime test. There is also a pressure and vacuum test that you can perform on the pump by itself.

 

[CharlesW]

Re: Evinrude Variable Oiling Test?

Keep in mind that the VRO will vary the ratio from 50:1 to 150:1 depending on load and fuel delivery. If the average delivery was 100:1, you need to go through 12 gallon of fuel for every pint of oil used. A couple hours of running might not be enough to give you a good indication.<br />When I bought a used VRO motor, I ran 50:1 mix along with the VRO system until I was comfortable that it was functioning. After about 12 gallon of fuel/mix use I switched to a 100:1 for another 12 gallon. Since then I have used straight gas and let the VRO do its job.<br /><br />Charles