Join Date: Jul 2013
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Re: Secondary fuel filter yanmar 3gm30f
There is little room for the cup to drop down while the filter is attached so what I did was take off the locking ring, let the cup drop down, and took a small screw driver to pry down the filter into the waiting cup - then I was able to wiggle the two together through the wire maze. Put something absorbent under everything because you have to tilt the cup, and the contained fuel becomes, well, uncontained. You might want to take a picture of this area of your engine before you start - it's pretty easy to knock loose one of the wires. I'm assuming that your engine is almost impossible to get to like other small boat engines.