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Here's a question maybe someone here can answer. I have a 7.3 in a f250. The filters are black when I change them. The fuel from the fuel filter bowl has black particles in it when I drain it. A few years back I dropped the tank and cleaned the pick up screens. The pick up screen was clean but the return line has a goofy looking plastic piece with screens. Those screens were packed tight and as full as it couldn't fit any more. There are rubber flaps that let fuel around the pick up and also the return screen if they plug. fuel was by passing the return screens for who know how long. After cleaning and changing filters my filters seemed to be much cleaner when changed. Question, were is all that black particles coming from. the plastic tank, o rings and rubber lines, filler neck rubber. warn primary pump. It's been a few years since I cleaned the tank and now my filters are looking black once again.
6.7 in a 2015 Ram. Are the fuel filters pretty easy to change?
His 7.3 filter is right on top and easily accessed.
Quote from: huntnphool on November 15, 2018, 12:53:03 PM His 7.3 filter is right on top and easily accessed.Sorry I was commenting on the Dodge 6.7 fuel filter
Quote from: luckyman on November 15, 2018, 11:43:45 AMHere's a question maybe someone here can answer. I have a 7.3 in a f250. The filters are black when I change them. The fuel from the fuel filter bowl has black particles in it when I drain it. A few years back I dropped the tank and cleaned the pick up screens. The pick up screen was clean but the return line has a goofy looking plastic piece with screens. Those screens were packed tight and as full as it couldn't fit any more. There are rubber flaps that let fuel around the pick up and also the return screen if they plug. fuel was by passing the return screens for who know how long. After cleaning and changing filters my filters seemed to be much cleaner when changed. Question, were is all that black particles coming from. the plastic tank, o rings and rubber lines, filler neck rubber. warn primary pump. It's been a few years since I cleaned the tank and now my filters are looking black once again. Have you ever rebuilt the fuel bowl? After years, the rubber o-rings begin to harden and fail, most often leading to fuel drips from the bowl into the V of your block. A lot of times the tiny black particles are pieces of rubber. The first typically to go is the o-ring for your water/fuel drain lever. The plastic on your cheaper filters will do this as well. I've had good luck with Baldwin filters, you might give them a look.
Diesel is the dirtiest fuel made, plus whatever crap is in the station takes.
Ill look into to that. It makes sense. Wouldn't it turn the fuel dark? Fuels is very bright green, just the filter turning black.
Ok I filtered my diesel sample from the bowl to get a look at the brown stuff. It looks to me to be sludge. It ground up between my finger with no effort to where it disappeared. It does contain aluminum slivers so must be injector ware.
Quote from: luckyman on November 15, 2018, 04:17:43 PMOk I filtered my diesel sample from the bowl to get a look at the brown stuff. It looks to me to be sludge. It ground up between my finger with no effort to where it disappeared. It does contain aluminum slivers so must be injector ware. Fuel is pressurized and flows from the bowl to the injectors, how does it flow from the injectors, back to the bowl?
Some of those 7.3 trucks had fuel tank delamination issues.
Quote from: jackelope on November 15, 2018, 04:22:32 PMSome of those 7.3 trucks had fuel tank delamination issues. Can you explain that a little further?
Quote from: luckyman on November 15, 2018, 04:49:38 PMQuote from: jackelope on November 15, 2018, 04:22:32 PMSome of those 7.3 trucks had fuel tank delamination issues. Can you explain that a little further?The liner of the tank degrades and ends up in the fuel filter. Glob-ish gelatin looking crud. No metal though. Just goo.
You should call northland diesel services in Bellingham. I bet you could get them cleaned, tested and o rings for them there.Sent from my SAMSUNG-SM-G930A using Tapatalk
You will know it’s time to change injectors when it gets cold and difficult to start in the morning without leaving it plugged in overnight.