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Old 01-20-2021, 10:11 PM   #13
slowgoesit
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City: MX, thru Canal to Bahamas
Vessel Name: Muirgen
Vessel Model: 50' Beebe Passagemaker
Join Date: May 2019
Posts: 3,400
Air collecting in the upper half of the filter over time IS NOT normal!
If the "rubber hose" is just upstream of the primary filter, and all other fuel line is steel or copper, I suspect that the problem is your rubber hose, or the rubber hose connections. I would replace it, especially if you don't know the age of the hose. Those rubber hoses are necessary in order to isolate vibration between the engine and the rest of the boat, but often they look perfect, but are deteriorated, as mentioned in an earlier post. Replace it, and while you're at it, replace the same hose on the other engine at the same time! Please keep us advised as to what you do and what happens. Take care, and good luck!
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