I just came upon a sight Walker engineering ,AIRSEP FILTERS kinda looks like a large K&N product. Not knowing the micronage,
has anyone ever and any experience with one of these? Also, what is the air consumption of your engine?
Steve 5B.......
Walker has been around for years but I don't believe the air cleaners are approved for highway engines by any manufacture mostly used on marine and generator use,tell us what engine you need the CFM for
good luck
Luvrbus,
I was wondering , because from what I was reading, they could match the in coming air to what air filter you might need. On my
8-92N I had the hose off for a few minutes to see what type of flow I was getting. Seems it was alot more not going through
the 4 canisters I have. I had thought about something like a K&N for more flow. I hope all of this makes sense.
Thanks, Steve 5B.......
I believe Sean had a K&N (or similiar style) filter leak dirty air around the filter and caused the need for an engine overhaul. I thought K&N had quit making heavy duty filters, but they show them on their website. They do say the heavy duty filters do not need oiling.
The consenus of most folks on this site seems to be to just to use paper filters.
Not sure I would use what Walker is selling. What is the matter with what the Manufacture recommended and installed?
John
From tests that I remember reading (sorry, I do not have a link), the K&N filters can give better airflow for a given surface area, but they also do not filter as well. I personally would go for dependable filtration.
John, good question, For some reason it seems that mine isn't getting enough air. There isn't any obstruction and I still get
some black smoke every now and then. The air filters are new.
Steve 5B.....
An 8V92 was not the original engine in your 5 I'm fairly certain. Were the filters upgraded when the engine was changed? It sounds like you may have four filters. A single modern filter canister from Donaldson would probably be a nice upgrade if you can find the space.
Quote from: 5B Steve on January 09, 2011, 03:44:45 PM
John, good question, For some reason it seems that mine isn't getting enough air. There isn't any obstruction and I still get
some black smoke every now and then. The air filters are new.
Steve 5B.....
Now the experts can get to the bottom of your problem. Walker may be selling a good product but in the past has took some bus nuts to the cleaners. He served his time and is starting over but needs to prove himself to me be fore I will buy.
John
Brian, I believe that Sean's issue involved bad tubing connections and not the filter.
Our buses have a unique need for air filtration. The engine and filter are behind the wheels and those wheels really kick up a lot of dust and nasty stuff.
I have never seen actual tests involving K&N filters other than their own that show increased flow. If you increase the flow with the same area, the obvious logic is that the media is not filtering at the same level. It would be interesting to see a test in a dusty environment.
Given the drastic results of ingestion of abrasive dust, I would not trust the K&N filters in our application.
Jim
Quote from: Jriddle on January 09, 2011, 04:25:06 PM
Now the experts can get to the bottom of your problem. Walker may be selling a good product but in the past has took some bus nuts to the cleaners. He served his time and is starting over but needs to prove himself to me be fore I will buy.
[/quote]
Wrong Walker here I am pretty sure. Walker Engineering was started by Robert Walker, Sr and has nothing to do with the Walker involved in buses so far as I can tell.
Could be but other Walker has lots of stuff on several websites.
Sorry if I am wrong.
John
Quote from: rv_safetyman on January 09, 2011, 05:04:16 PM
Brian, I believe that Sean's issue involved bad tubing connections and not the filter.
I think Sean has had the engine rebuilt twice for dirt ingestion, but I could be wrong. Th ought once due to the filter and once when the intake tubing was loose. I could only find one mention of K&N on his blog. Maybe Sean will see this and set us straight.
Belfert,
Indeed your right about the original engine, I have know idea what it started out with. The filtration system is 4 canisters, the
large one you mentioned might just be the trick, thanks!
Steve 5B.......
Steve I understand you have just bought several different engines. Measure the intake air input to blower/turbo and compare it to 8V-71 I think you will find out the 8V92 is much larger. would recommend converting to modern stock Air cleaner of proper flow.
K&N is a terrible filter in my experience. Soooo bad! Did I mention that?
Regardless of what you install or keep I would urge you to install a "Filter Minder". That device causes you to replace your filter element "only" when it becomes restrictive and not before. That ability should get you your money back with one avoided filter change or one early one. Win Win situation. Cheap on Ebay. There is even a model that tells you when the crank case filter is plugged. The info it provides is color coded and you don't even have to be literate...no electrical hook up and no math. Even I understood it....red stripe means go get a new filter. Yellow means get ready to do so but that adds complexity....for me.
Steve, install a ECO system 1400 cfm ( a little overkill) 7 in H2O and the 8v92 can breathe , the Eco system is a DD 2 strokes best friend or any other diesel engine IMO
good luck
Luvrbus,
I just sent you a PM.
Steve 5B...
Walker AIRSEPS are made for marine and generator use only. Use a heavy duty paper element air filter and do not blow out the air filter to clean it-as that will make micro holes in the filter that will allow dirt in. K&N stopped making industrial filters because of the lack of good filtering. Good Luck, TomC
http://www.walkerairsep.com/product_list.asp (http://www.walkerairsep.com/product_list.asp)
There is one for dd engines.
I just don't have a clue about them
Lonnie
A very unfortunate problem when a business gets a bad reputation.
Walker Engineering, or Walker Airsep is a highly regarded company and no connection to Sam Walker. Please do not get them confused.
I think we are confused about the Airsep being a Filter. It is Not
The following is from the Walker Engineering site.
Trucks/Commercial Vehicles
Trucks and buses have long been often overlooked when it comes down to the handling of crankcase fumes. Many vehicles use a "dump tube" which vents the oily fumes all over your frame, engine components, and cab areas.
Our over-the-road (OTR) AIRSEP® kits are designed to deal with these unpleasant fumes and help in lowering crankcase pressure for better engine performance.
Pick-up Trucks
Since 1999 our Dodge RAM AIRSEP® retrofit kits have found their way on to the some of the USA's most serious Dodge Ram enthusiast's truck. The easy to install kit replaces the plastic "aspirin" catch bottle shipped with your truck. Performance, styling, and elimination of oil mess on your steering box make this kit a "must have" if you own a Dodge RAM.
RVs and Motor Coaches
Today's modern luxury coaches include impressive diesel power packages. However, most engines do not include a closed crankcase system. The Walker AIRSEP® for RV applications address the problem of oil leaks and oil mess,not to mention fouled and dirty radiators. Be sure to read more about our innovative system in the "WHATS NEW" section, or select "RV" in the Model/HP field when searching for a system for your coach.