Posted by gahorN on February 22, 2009 at 06:43:46 from (76.185.230.144):
In Reply to: 8N paper air filter posted by JMOR on February 16, 2009 at 18:14:18:
souNdguy said: (quoted from post at 17:43:25 02/21/09) scientific studies show that a properly serviced oil bath filter simply filters better and provides better air flow than a clogging paper type. key is keeping it properly serviced.. which may mean changing the oil every 6-10 hours in heavy dust.
a snorkel anbd settling jar greatly improve the filter efficiency.
in god I trust.. everybody else.. I want evidence.. thus the UOA to prove cleaner oil than baseline... nothing personal.. it's just irrefutable proof..[/quote:4b3e1c31e0]
[quote:4b3e1c31e0="souNdguy"](quoted from post at 01:18:21 02/22/09) Awfull lot of tractors still running around with oil bath filters for them to have sucked 10x worse than a medai not invented till 50+ ys later.
blood letting used to be 'the thing' for fixing people... guess that worked out huh?
soundguy
Respectfully and sincerely, I have not found too many real "scientific" studies about oil-bath versus paper air filters, and I've found NONE that said an oil-bath is better than paper. (And I am referring here to actual science and not some maker of filter's "scienctific" study (advertisement) or some magazine's promotion of one of their advertisers product.)
The best paper filters are much better than the best oil-bath filters, and the best indication that is true is the number of modern automobiles and trucks and airplanes that use oil bath filters: None. Absolutely none.
No factory approves or produces any "heavy duty" oil bath filters either, and neither does the military recommend any oil bath filter over paper.
Having pointificated that... I'll go on to condemn K&N filters of any kind. They merely promote "better performance" ... thru less filtering. That is all. They do not filter as well as most other paper filters and they pass more air to the engine. Dirtier air, by the way, is how they brag their filters provide more horsepower.
The K&N type "re-cleanable" screens are the worst product foisted upon the mechanical world in modern times.
Blood-letting, like oil-bath and re-cleanable screens, are out-of-date technology. Quality, modern paper filters are better at filtering. Their down-side is that they require regular inspection and replacement.
Edit: By the way, I still have my oil-bath on my 9N and intend to keep it because I don't really make a living doing development work on, or actually working old N-Ford tractors. My occasional mowing/grading jobs don't require ME to wear a mask so the old Ford is probably OK too as long as I service it's original oil bath.
This post was edited by gahorN at 06:49:02 02/22/09.
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