diesel fuel , dirty filter question.

[luckyman]

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. 

[Boss .300 winmag]

Diesel is the dirtiest fuel made, plus whatever crap is in the station takes.

[huntnphool]

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. 

 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.

[bornhunter]

6.7 in a 2015 Ram. Are the fuel filters pretty easy to change?

[jackelope]

6.7 in a 2015 Ram. Are the fuel filters pretty easy to change?

YouTube is your friend.

[bornhunter]

 

[slowhand]

I know My 2015 F350 6.7L Ford fuel filters are crazy easy. I love it, takes maybe 20min for the entire process. 

[huntnphool]

 His 7.3 filter is right on top and easily accessed.

[slowhand]

His 7.3 filter is right on top and easily accessed.

Sorry I was commenting on the Dodge 6.7 fuel filter

[huntnphool]

His 7.3 filter is right on top and easily accessed.

Sorry I was commenting on the Dodge 6.7 fuel filter

 

[luckyman]

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. 

 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.

I haven't had to rebuild the bowl. It has leaked past the drain lever before but that was when the filter was dirty. A new filter wipe out to bowl turn key on and work the drain lever a couple times to clear away any contaminates on the oring and has never leaked afterwards. I do suspect oring ware could be some of the contaminates in the fuel.

[luckyman]

Diesel is the dirtiest fuel made, plus whatever crap is in the station takes.

Thats what I was kind of thinking. It may be where I buy from.

[timberghost72]

Your injector o-rings are failing. It is black from oil getting into your fuel system. The particles are o-ring material but those don't cause the filter to turn black.

[huntnphool]

 Old Vs new

[luckyman]

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.