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Old 07-05-2012, 12:02 AM   #15
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I like the exclusive dry synthetic nanofiber technology that Donaldson offers compared to microfiber synthetic blend and cellulose air filters. Better dust filtration, better flow, higher load capacity, longer life/less maintenance/lower lifetime cost, for better engine protection.

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Old 07-05-2012, 05:15 PM   #16
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Originally Posted by TheArnolds View Post
First off I am new to diesel engines and as I read through all of these posts and I do not understand the term "dusted"? I see the dust in the hoses in the photos's but I am not sure as to the cause? Did the hose come off? Was the filter some how installed incorrectly? Did the filter fail? Thanks in advance for my education!

The term 'dusted' means the engine has ingested dust from the intake system. Usually, the reference means the engine has been damaged such that there is increased blow-by past the piston rings accompanied with a marked increase in oil consumption. These are the two classic symptoms of dust damaging the piston rings resulting in the need to overhaul the engine. Some engines that are dusted do not always have reduced power just increased consumption of oil and much more oil out the slobber tube (crankcase vent pipe). The pictures show the evidence that dust entered the system. The most common entry point on MHs is the air cleaner from some flaw in manufacture that allows dust to bypass the filter paper medium. In some instances, the dust actually is drawn through the paper medium as some air cleaners for MHs are for light dust applications. Sometimes dust gets past a loose hose clamp on the clean air side of the air cleaner. Sometimes there is damage to a clean air pipe from another pipe or hose contacting the outer surface resulting in a small hole rubbed in the pipe.....inlet dust leak. If you do have have a marked increase in oil consumption or much increased amount of oil mist/liquid oil coming from the crankcase vent, I would not think you have a dusting situation. Not all dusting evidence ends in a damaged engine. If you catch it soon enough and correct the issue nothing more is needed.

Gary Spires
Retired Field Service Engineer for Cummins Filtration

Gary Spires
Retired Cummins (Fleetguard) Field Engineer
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Old 05-11-2014, 10:38 AM   #17
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Air filter issue

bobrw9 - Beautiful workmanship !! I wish my 2003 Newmar cat 330 had a side radiator. I am in the process of changing thermostats and ran into this disgusting eco can thing. Im very disappointed with this. ( I cant even believe that CAT gave their blessings or whoever ) I just purchased this coach and in the process of my initial service I discovered that the sensor line on the intake has never worked as the factory has a tie pinching off the line. I put my vacuum tester on it at the intake and it doesn't read anything. My observation is that this ECO thing has never been changed. I inspected the inlet to the turbo and don't find any real dusting issue. ( miracle ) rear radiator is a bummer.. Im changing belts now also. I had to order radiator hoses ($$$) I didn't find any cracking. I think ill get the K&N replacement for the ECO thing. Does anyone have a suggestion on what I could replace it with, that wont require major mods.. Id be proud of that air intake change looks very professional.. ( we all should understand what AIR does for a diesel engine. if you don't already ) thanks for your information and pics..
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Old 05-11-2014, 09:25 PM   #18
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Dust ingestion is the reason Cummins says not to change or disturb the intake system until the filter-minder says to change the filter. Every time you adjust/change/replace something you introduce a margin of error for mistakes and errors.
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG retired;Good Sam Life member,FMCA."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution. "Abraham Lincoln"
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Old 05-12-2014, 04:44 AM   #19
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Originally Posted by Ray,IN View Post
Dust ingestion is the reason Cummins says not to change or disturb the intake system until the filter-minder says to change the filter. Every time you adjust/change/replace something you introduce a margin of error for mistakes and errors.
Last year, the Spartan Chassis factory repair center began recommending annual replacement of air filters on Cummins engines. I was told it was because the filter maker wouldn't guarantee the structure integrity longer than that.
Doug, Robyn, Ross & Ryan
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see our blog: www.thebigtaxi.com
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Old 05-12-2014, 10:05 AM   #20
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Both Cummins and Spartan have talked about turbo problems with Farr air filters coming apart and damaging turbos. Talked about check date of air filter date on box so as not to be buying a 1 or 2 year old filter. Issue is glue coming apart in filter and then allow paper to come apart and get in turbo.

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