9.9 fourstroke gas in the oil

Prophammer

Chief Petty Officer
Joined
Jul 2, 2010
Messages
480
My 2006 mercury 9.9 fourstroke got gas in the oil. Could the fuel pump allow gas to seep into the oil?
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,986
I can't believe that folks jump skyhigh and want to buy new parts.----Take the fuel pump apart and inspect it.----May just need a diaphragm.----Serial # of your motor ?----A complete pump may not be available.-----Fact ,-- you can buy a new fuel pump for some 1968 small 2 stroke outboards.----But these new 4 strokes are a nightmare for parts.
 
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