dirt in turbo

[mr plow]

took off hose from air box leading to turbo to install boost elbow. what i noticed was the housing was dirty, and somewhat oily? this is not a normal condition is it. does anybody have anything to say? truck is going in for a whole pile of warranty work in a week anyways.



2000 quad cab auto k&n, va, boost module 4x4.

 

[DGFoster]

Get rid of that K&N filter,I had same problem,put in an amsoil filter and have had no more problems.

 

[Sky]

You DONT need to get rid of the K&N. You need to get rid of the excess oil the K&N has on it. Wash it and re-oil lightly.

 

[Gary - K7GLD]

Might pay to thoroughly check yer FILTER HOUSING for fit - if it's defective and marginal in construction quality, as well as your care in installing the filter you may well have similar problems with ANY brand filter, - and the mere fact you pay LESS for some other brand or OEM filter dern sure ISN'T going to protect yer engine any better!



The K&N haters just LOVE to leap in on these threads and get their digs at K&N - completely avoiding the possibility the basic problem is NOT the filter, but something else...

 

[Vaughn MacKenzie]

Lose that K&N

Mr. Plow, DO NOT continue to run that K&N on there! Most K&Ns are good but there are definitely bad ones out there. I would say you've got a "bad" one. My brand new preoiled K&N RE-0880 that was well sealed let a lot of dust through, I could wipe my finger in the intake tube and come up filthy brown.



I went to the Amsoil inbox filter and the difference is night and day.



Vaughn

 

[CCahill]

Agreeing with Gary... The fit on any filter, even the OEM should allways be checked for fit... Sometimes some heavy grease will make an otherwise questionable fit, nice and airtight...



K & N, Amsoil, whatever... service it and make sure the seals snug, and they all work fairly the same...



Colin

 

[Cummins Corvette]

Ditch the K&N. I had one on my old first gen where there was NO CHANCE of leakage. It didn't matter how I oiled the filter. I never had oil in the intake but there was always dust. In you hold a K&N up to the light you can clearly see how fine dust could get through. JMO - I hate k&N, but some have had good experiences with them I guess.

 

[Big White Beast]

Got rid of mine.....

Seemed there was oil in the intake hose. Not bad though. When I pulled my IAT sensor and it had an oily film on it was when I changed. I also heard where it can get into the turbo to cooler hoses and they start blowing off.



I went with the Mopar Guy Air Filter



Seems to be working great. Been working some really dusty jobs lately so I pulled the hose to check. Clean as a whistle and lower EGT's too. Plus I have to laugh everytime I open the hood



Garrett

 

[Archive]

Does any oil mist in the pressurized side of the intake system come from the turbo itself? See if you can find someone who will build a Holset turbo and guarantee ZERO oil seepage from the seal behind the compressor wheel. Good Luck.

 

[Gary - K7GLD]

To each his own - and I learned LONG ago how pointless it is to challenge dedicated predjudices... BUT, *I* have well over 100,000 miles on my K&N equipped Cummins - and when servicing the K&N a few weeks back deliberately and CAREFULLY did the "white gloves" bit on the intake hose and turbo hub and blades - NO DUST, OIL, OR DIRT! And THAT is with well over 100,000 miles of airflow thru that filter and air tract!



Further, my last oil analysis with 7,000 miles on the oil came in with 8ppm wear particles and 3ppm silicon (dirt!). I challenge ANY K&N hater, or advocate of some "better" filter to meet or beat those numbers by any significant percentage!



Will *I* stick with my K&N?



YOU BETCHA!

 

[Gonzo 1066]

Oil & dirt

My HO 2001 no longer has a K&N in it. I noticed near the corners of the suction side of the air box there was a definate dirt track. I agree that a common problem is over oiling and this condition can appear as a dirt track. Something you would not notice on a dry filter. The foam lip on the K&N I had in my truck did not fit nearly as tight as the stock filter I think that the dirt bypass on mine was because of a poorly deligned outer seal. I have tried on numerious times switching filters from K&N to the stock dry filter and have noticed NO LOSS OF POWER- NO INCREASE OF EGT . The filter minder does not show any restriction at 29-30 # boost. In my truck I will not take the chance of a aftermarket filter when I make a living with it. A pleasure vehicle may be differnt. IMHO

 

[Vaman]

I purchased a K&N when I first bought my truck back in 98. I promptly sent it back after holding it up to the light and being able to see through it. I'm sorry but if you can see through it, it's filtering abilities are questionable. Add to that a bunch of reports of dirt in the air intakes of trucks. To back this up, have you EVER seen K&N brag or advertise about their FILTERING abilities? I haven't... it's all about their airflow. I've often wondering how many air filters I could sell by advertising that they were the world's highest air flow filters and, here's the best part, they're invisible. I wonder how many empty plastic bags I could send people (complete with installation instructions of course). Here's another thought about the "over-oiling" issue... just a thought mind you. I wonder if all of their filters are passing stuff and the only people that see it are the ones who over oil their filters. If you don't over oil it, oil doesn't coat out on the intake and there's nothing to catch the particulate junk. Again, just a thought.



Anyhow, after all that... check my sig. When I started bombing I got one just for the performance increase but I realize that it's probably at the cost of better filtration. I accept the trade off...

 

[Don M]

I am a supported of the K&N air filter whether in the stock box or as a stand alone unit like mine. The filters have always worked for me and the one I have now does as well. The cleaning and oiling process is not idiot proof and I can see where things go wrong. Air filter fitment is another subject.

My last 2 oil analysis showed 2 ppm and 3ppm. Both with roughly 7000 miles on the oil. No silicate levels basically, at all.



Don~



somebody needs to do a test. A real one.