Gas in oil injection tank?

[lyncraft_mechanic]

I have a 75hp mercury that is oil injected and some how there is gas going into the oil injection tank. the lever on the oil pump itself in now seized up and won't move. the last time i had the boat out the motor was running at a high idle and seemed to run fine but on the way back to the launch while trying to get the boat to plane out the motor bogged down to a high idle and would not go WOT!!!!!!!!!

 

[achris]

Re: Gas in oil injection tank?

Pull the plugs and do a compression test.. You may have killed the engine by running on a weak fuel oil mix...

If fuel is getting into the oil tank, then start with the 2psi check valve in the oil line... Pull the pump and do a proper repair on it... or replace it... Then set it all up by the book...

Chris........

 

[Chris1956]

Re: Gas in oil injection tank?

Check the fuel pump diaghram. If they leak, raw gas will get into the crankcase, and from there into the oil injection pressure line.