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#1
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Screens in siphons: fire prevention or particulate catcher?
We figured out that our sudden power loss was tied to crud clogging the screens at the top of the siphon tubes in the saddle tanks. On this '74 V-20, clearly there's been some accumulation of particulates in the tanks. One of the threads on this site had one of you simply removing the screen and trusting to the big OMC filter to keep the crap out of the motor (Fitz, Maco, Tsubaki,et al ). I mentioned this to my pals and they said "No, that's a flash screen, to keep a fire from moving into your gas tanks; you only need them once!" Another guy said, yeah, that's true of the vents, but not of the siphon tubes. So, what, in your opinions, is it? Can I remove the screens, or does anyone have a good way of cleaning the tanks out?
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1974 V-20 w/1996 OMC 115; 3 sailboats, 2 rowboats people who are competent are worth the oil it will take to fry them in hell. 
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#2
08-22-2009, 06:23 PM
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the sceens are there to only prevent crud from clogging the fuel system down streem from the tank( they didn't have water separators back then). I'm not aware of any fire supresion hard ware on fuel tanks other than overboard vents, USCG rated fuel lines, and anti siphon (or shut off) valves
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#3
08-30-2009, 10:10 PM
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Mine does not have one. When I replaced my hose from the tank to the filter I took the tube out to look into my tank. There was no sign of a screen any where from the tank to the filter.
Besides, the screen won't stop as small a particles as your filter will. If it were me I would remove it and trust my filter. Turbo
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1984 V-20 Center Console 1985 90 hp Merc. American by birth, Southern by the grace of GOD. Never let your hobby become a job but rather let you job become your hobby. http://www.wellcraftv20.com/gallery/turbine_doc_84_cc
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