Uls Fuel / Premature Injector Wear Concider This A Warning!

[DPKetchum]

Then the DESIGN changed totally. If there ARE new part numbers with hardened seats etc. its a little late isn't it.

 

[AABEN]

We did not have this meny having trouble till 15PM fuel came on. We lost a lought of lube when this came a lone.

 

[DPKetchum]

Well maybe. Lot more miles and age on these trucks also. Lots of guys have posted using fuel additives every tank and still have failures.

 

[AH64ID]

and had 1 micron filtration for over half those miles...

What filter has 1 micron filtration?? I thought 2 was the best one could buy...

 

[steved]

What filter has 1 micron filtration?? I thought 2 was the best one could buy...

HF6604... 98. 6% @ 1 micron, 99. 5% @ 3 micron... in the filter world, 98. 6% is considered "absolute" and 50% is considered "nominal"... and that rating is at 30GPM, not the 1. 5GPM the FASS does (which means filter efficiency increases even more)...

And besides, according to Bosch 5 micron is the magic number...

 

[cerberusiam]

And besides, according to Bosch 5 micron is the magic number...

According to Bosch studies I have seen, 3 microns or less is the acceptable number. Even then, wear was accelerated but fell within the parameters.



Then again its like anything else about these systems, getting an authoritive definitve answer that will be accepted by all is an excercise in futility.

 

[steved]

According to Bosch studies I have seen, 3 microns or less is the acceptable number. Even then, wear was accelerated but fell within the parameters.



Then again its like anything else about these systems, getting an authoritive definitve answer that will be accepted by all is an excercise in futility.

Most forums I've read indicated 5 micron, maybe that's changed? Still, I was well below the generally "accepted" required number for the majority of my miles... I did everything I could to "protect" my fuel system.



And again, I don't believe for a minute there is one single cause for all these failures... I tend to believe its a bunch of minor causes, that by themselves are not really harmful short-term, but together are detrimental.

 

[cerberusiam]

Most forums I've read indicated 5 micron, maybe that's changed?

The data hasn't changed in 5 years, opinions aside.



Wasn't too long ago the mention of EGR in conjuction with a 5. 9 was a sacrilege and an tar-and-feather event. :-laf



I believe there was also the perception, "opinion" if you will, that a VE powered 6BT could not break 300 HP.



Perceptions and interpretation, it drives opinions and what is the acceptable norm. Hard data is what matters, not hot air.



Yours is the perfect example of things gone wrong. From all accounts you did everything right and still ended up with problems. Others have done just about everything wrong with no issues.



The results are all over the board. Trying to draw conclusions from incomplete data is a guess pure and simple, no matter how educated it is. Then again, sometimes a guess is a lot more accurate than we think.

 

[steved]

Personally, I would like to hear someone like DonM chime in... you know an injector builder keeps some cause/effect data. He asked Lloyd about my situation...



The reason I'm looking to regrade (as opposed to upgrade) trucks is for this very reason.

 

[seafish]

New injectors are said to be a updated part number with a hardened ball and seat. May also just be a design issue. Thats would be my bet on the issue. Poor design.

So can anyone clarify that if (or should I say when??) the injectors on my 2005 HO go bad under extended warranty, will Dodge replace them with an updated and better injector, seeing as how I am still running stock.

 

[Axekicker]

The 'odds'....

I've worked in the construction industry for 30+ years... some of it building & re-building gas stations. Now I'm an inspector. Gotta tell you that 'none' (ok... 'few') of you has any idea the condition of the fuel system of the station or facility that you fill up at. I've seen more rusty-tanks... rusty underground pipes... rusty pipe-in-pumps... leaky back-flow 'preventers'... moisture-in-storage-fuel problems than I care to remember. It doesn't matter what 'lie' station-owners tell you... when the stuff comes out of the ground for a re-build... I'm seeing all kinds of fuel-contamination issues.



We recently looked at a newer system pulled-apart to find a leak... they were getting a persistent & pervasive 'fuel' smell by the refueling island... and found a faulty 'back-flow preventer' (vacuum-breaker) that was sucking dirt and rainwater water back into the system at the stack-vent. The station owner kept saying... 'there can't be anything wrong with my stuff... it's all new!" Then we showed him the leaky BFP with a bad diaphragm & gasket and he said "... oh!"



The best you can do is carefully pick your fuel-sources... have good on-board filtration... water-capture... and go to a station with newer underground fueling tanks & piping:-laf. There are no 'absolutes'... just the 'odds'. I outta know. Check my sig/City...