It's going to be difficult but I'll try to run down the centerline on this one.
Paper = easy maintenance and better particle control in most cases.
Oil bath = Better air flow and adequate particle control but dirtier maintenance.
Note: I don't think loosening a couple of thumb screws and clamps and taking the air cleaner over to the parts cleaner is as messy as the pro paper folks say. If one does not follow the directions and overfills the sump you can't blame the oil bath system.
The only savings I see in paper are the pint of oil and another 15 minutes rinsing the filter housing out. Either way you disassemble the filter housing and if done correctly the filter housing is cleaned before installing the new paper filter anyway.
I live in the country, left over oil is a good thing... soaking fence posts, preservative for the barn, ect.
I work in the city, oil is an expense, disposal/environmental problem.
I like the Idea of the option, depending on your situation, paper filter, or oil bath.
Either way, you have an antique MV that is on the road, in my mind that is what counts!
Ive got to admit that when I was an aircraft maint apprentice the crew cheif told me to change the oil and clean the air filter in the GPU and I can still see the smile on his face as I walked across the hanger floor with that old oil bath filter sideways on my shoulder not even noticing the oil running all over me. prop wash and sky hooks. lesson learned. I also got the job of cleaning the hanger floor.
hi, steve.. my disdain for the oil-bath evolved from a lifetime of farming.
my dads early tractors and grain trucks were all oil bath fitted. (guess
who got to service them). when dry filters were introduced i did the
happy dance all the way to the service shed. as mentioned
earlier theyre just plain dirty (even during operation the little bit of
oil residue on the outer canister collects dust), and dollarwise theyre
not really any less spendy to maintain. from a serviceability/driveability
aspect i just like dry filtering better. rick g.
Hmmm yes flight line. i remember that one. I had become more seasoned by then and some other unlucky sod had to learn the lesson.
Those were great times. I absorbed more knowledge of mechanical systems then thanI can even imagine. Though equalizing all the tire pressures on a 747 in a rain storm. Or trying to depart a DC10 in minus 35c with a wind is novel, I guess these days Im happy that I can choose when to rough it.
-Do I accept that the a better flowing air element would contribute to a better running f banger?
Actually this is not true. The paper element has a more restrictive filter porosity then the metalic precleaner elements in the oil batch filter. The air does not go thru the oil by the way!
The better reason for using a paper element in the big cities is to filter out the heavy concentrations of acids in the smog laden air.