Failed injectors due to debris in the tank?

[DerekW]

Heres a link to the vent filters I am talking about



http://purplecranium.com/wsm/c-52_diff_cleaners.html



there images are protected from those even trying to help them out(i tried to post) so just lcikc the link

 

[Pawpaw]

You don't need any expensive filters for those vents. A 97 cent VW bug fuel filter (circa 1969) will do the job just as well.



Bob

 

[NC_Mog]

Has anyone had a problem with running a stock fuel pump the Glacier fuel filter in addition to the stock filter? Does the addition pressure drop not cause a problem?

 

[BGlidewell]

You don't need any expensive filters for those vents. A 97 cent VW bug fuel filter (circa 1969) will do the job just as well.



Bob

maybe so but did they rate micron specs on those filters in '69?

 

[Pawpaw]

maybe so but did they rate micron specs on those filters in '69?

Probably not, but we're not talking about an application that needs it. Remember, there is no real "flow" through those vents other than drawing air in to replace the diesel you burn.



You're just trying to keep out any dirt that just happens to float into the opening. Worrying about micron ratings for this filter goes way beyond "excessive overkill".



Bob

 

[BGlidewell]

Probably not, but we're not talking about an application that needs it. Remember, there is no real "flow" through those vents other than drawing air in to replace the diesel you burn.



You're just trying to keep out any dirt that just happens to float into the opening. Worrying about micron ratings for this filter goes way beyond "excessive overkill".



Bob

probably true



My '65 VW bug was excessive underkill and I've been trying to make up for it for over 30 years:-laf

 

[CDonaldson]

I installed the GDP 2-micron w/big line kit to PROTECT my investment from the 'contaminated fuel' possibility/situation. Whether this installation would 'void' the warranty in DC's eyes is to me not an issue. This BETTERS the filtration, so, it decreases the possibility of the problem.



This thread started out with a 2006 model truck. I can understand where an older truck could have a lot of 'contamination' that would 'wash', but a relatively new truck having this??? I also can understand where 'old tanks' and 'dirty tankers' could contribute to the 'wash/contamination' problems, but there is also filtration at the pump. I do not know to what degree the filtration at the pump is, but certainly it should take care of most of the problem right there. Then, with a 7-micron in the canister, and a 2-micron after that, we should alleviate the problem.



The tank vents DO need something with regard to air filtration. After that, the in-line filtration should take care of any problem coming into the fuel system.



As far as being your own warranty station for injectors after all the filtration concerns being corrected, that is just plain nonsense. If you have taken care of all the possibilities concerning fuel contamination, then all you have left is an injector failure that is NOT related to the fuel, just the injector. Chances are we will either have less injector failures OR we will finally be able to PROVE that it IS the injectors themselves that are really the problem.



Win-Win situation if taken care of correctly. The additional filter argument with warranty concerns is NOT a valid argument. How can better filtration cause this failure? It can't, so the aftermarket part would be found to improve the system. DC would loose on this one big time in a court if it ever got there. If I were having a fuel contamination related problem I would take more than one fuel sample. I would take a tank sample, a sample off the canister post filter, and a sample post the 2-micron filter. Each sample should get cleaner and cleaner, PROOF the system IS functioning correctly and that contaminated fuel is NOT reaching the CP3/injectors. This logical method of analysis WILL stand to prove that the injector itself is the failure. It will also stand to finally start ending the warranty crap regarding the addition of those things that are for the better.



CD

 

[BGlidewell]

>8 If you have taken care of all the possibilities concerning fuel contamination, then all you have left is an injector failure that is NOT related to the fuel, just the injector. Chances are we will either have less injector failures OR we will finally be able to PROVE that it IS the injectors themselves that are really the problem.



Win-Win situation if taken care of correctly. The additional filter argument with warranty concerns is NOT a valid argument. How can better filtration cause this failure? It can't, so the aftermarket part would be found to improve the system. 8<

The only thing I can think of as rationale for a non-warranty situation here would be a claim for the fuel pumps due to DC claiming the pressure was wrong... but as you say, I can't imagine an injector failure due to increased filtration

 

[CDonaldson]

BGlidewell.



You have a point about pressure, but I only saw less that 1/2lb pressure change when I added the 2-micron filter, and with the filter in place the fuel pressure is still withing the operating specs/range of the in-tank fuel pump. According to the test procedure in the maintenance/service manual, the stock lift pump has an operating range hi/lo with a 2-1/2LB area. My truck was putting out right at the top of the range, so the 1/2LB difference is still withing the lift pump operating/testing specs. Then there is the argument about volume which is what DC uses as a premise in discussing fuel delivery. I did a volume test both before/after the 2-micron installation and saw no mentionable/signifigant change. I actually made a video of this installation and the testing at the time I installed the 2-micron filter. I did that so I would have a documentation of the install and all that was related to it. Burnt it to a DVD and put it with my maintenance records. I hope I don't need it for future reference, but if I do, I have it. I can thank everyone here for being honest about their problems with DC regarding warranty issues. That led me to keepng the kind of documentation and records I am currently keeping. I did discuss all these things with my attorney and he felt that this stuff would more than hold up in a court of law if somewhere down the line I had problems.



CD

 

[TCDiesel]

A 2micron (True) with a nominal rating @98% absolute filter @ 10psi @ 2gpm would cut the pressure and flow close to half. If you increase the Pressure it WILL drop the filtration.