Originally Posted by
flogger
I have been battling this problem for a year and a half with my 41 C. Boat blew an engine and I bought it with motor blown. So it sat for a year or so. O ring was missing from fuel fill and I didn't realize. When we got it ready to go I had a good trip in the intercoastal and no issues as the water was smooth. The next day I took her out fishing and was in engine room entire day. I was getting heavy sludge stuck in spinners.(which are now removed) I called mechanic and he brought polisher and cleaned fuel. Next day had same problem, he came back that night and polished again. The short of it is I am using the manual fuel gauge hole and bought my own polisher ($1500) moves 4 gpm. so for the last year and a half every trip when I come in I hook it up. I get a small amount out in a short time but then I could run it for 2 days and not get any more. The baffling is the issue not being able to get to back of tank. I talked to many people and did every suggestion I could. I made a capped pipe drill small hole in end cap and hooked to air compressor. We agitated the fuel as we polished. Again this really didn't work. Also I have poured every chemical known to man in it and it never killed or broke it down. I was still getting clear fuel with heavy solids. 3 weeks ago I was reading on a forum and a mechanic from workboats in gulf said he dealt with this all his life. Gave a chemical name and I ordered. (can get name if you need chemical on boat and I don't remember name). so three weeks ago I poured a double dose in it and finally I'm getting black liquid at the raycor. It seems to be breaking down which is a good thing bad thing situation. Stopping up filters but I think we are on the right track. I am this week going to mount the polisher in the boat take the fuel gauge out and using a pvc cap with two holes drilled in it make it where I can run polisher while at sea. this way I am hoping while being sloshed around the polisher will pick up more material. for me the $1500 polisher was a good investment and paid for itself in short order. Sorry for the long post but this is a battle I've been on for a while.