Ron Sa said: (quoted from post at 13:38:38 01/04/10) Here is what I wrote on the other website that I mentioned.
It is a myth that oil bath air cleaners are highly effective in removing FINE dust from air—the type of dust that we see hanging in the air and gets sucked into the engine’s inlet. Oil bath air cleaners are about as effective as seining minnows using hog wire fence. How do I explain this without 10 pages of technical formulas and explaniations why fine dust cannot travel rapidly from the center of an air bubble to the spherical surface of an air bubble even under several Gs of inertia force? The air bubble traveling thru oil only contacts the oil at the bubble’s surface. Fine dust away from the surface of the bubble escapes capture in the oil resevoir which amounts to about 90% of the fine dust within the bubble escaping capture. So what does the wire mesh accompolish? Very little. Air traveling past the wire mesh’s surfaces creates a boundary layer which has a similiar affect to having a glove on your hand. When passing thru the wire mesh, only a small percentage of the air’s volume gets used as boundary layer. Most of the dust-filled air passes thru the short length of wire mesh with out contacting any oil on the wire mesh’s surface. If the length of wire mesh was say 20 feet instead of a few inches, a lot of the dust would get trapped. Inside the engine, most of the dust in the air exits thru the exhaust but some of the dust contacts the oil on the cylinder wall. This dust acts like a lapping compound that wears out the sleeve and rings. It eventually shows up as crud inside the engine or as the black color of the oil.
Your boundary layer is good for smooth laminar flow, not for the turbulent flow in, around, thru the mesh material. I will/would be much more convinced with a particle analysis comparing before & after air content. Would be neat to see that for pleated paper, K&N, oil bath w/mesh.....done without funding by a filter manufacturer.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - 12-Volt Conversions for 4-Cylinder Ford 2000 & 4000 Tractors - by Tommy Duvall. After two summers of having to park my old 1964 model 4000 gas 4 cyl. on a hill just in case the 6 volt system, for whatever reason, would not crank her, I decided to try the 12 volt conversion. After some research of convert or not, I decided to go ahead, the main reason being that this tractor was a working tractor, not a show tractor (yet). I did keep everything I replaced for the day I do want to restore her to showroom condition.
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
