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Old 08-30-2016, 10:16 AM   #63
smitty477
Guru
 
City: Northport
Country: USA
Join Date: Aug 2015
Posts: 985
"I want to punch a hole in the TOP and allow air in that will allow/cause the oil in the filter to run into the crankcase where I can pump it out w the oil extractor pump installed in the boat."


Yes - I agree I do that as well on our last boat as we had one off each (one up and one down on each engine) filter. I would punch the upside down filter once in the center and again along the edge with the same center punch so it would drain back to the crankcase. It was much better if I then would do the fuel filters or some other planned task before I went back to these to gibe them enough time to drain completely - patience is not one of my strong points but waiting here is important so put a task in between. Perhaps I can find a picture showing these filters to make this clearer.
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