Diesel Filtration Question
Im suffering from a blocked fuel system on my Delta 7.7 with twin Yamaha ME420's. She hasn't been used in a few years so thinking i have a sludge issue. Put briefly she has 4 x 40 gallon tanks running into what seems like a water separator???, one port one starboard, then into a Separ 2000/5 again one each side. From there fuel runs into a small(approx 1 gallon) surge tank each side before hitting the engine filters.
Basically looking for any advice. My plan is to pump as much as possible out of the tanks and change filters(x4). Are the alloy bowls before the Separs likely to be filters or what?
Any diesel gurus out there?