2002 Johnson 90 oil siphoning problem

Wilcol123

Recruit
Joined
Aug 13, 2012
Messages
1
During hot weather ,in storage , oil siphons into the engine from the oil tank making the engine hard tonstart . How do I stop the siphoning? Will a cut off valve on the oil line work?
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
27,169
Re: 2002 Johnson 90 oil siphoning problem

Is the Oil tank mounted higher than the OMS pump? Is the vent in the oil tank cap clear? You do not want to put a valve in the oil line.
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,622
Re: 2002 Johnson 90 oil siphoning problem

Fix the cap on oil tank as its not venting....
 
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