air filter for 641

Greetings,

Has anyone modified their 641 oil bath air filter to a dry type filter? I would like to do that, so if anyone has the info, I'd appreciate the info.
 
Not me paper filters do a far better job. starting in the late 60s in the I watched engine life at least double with paper filters.
 
Agreed.

A properly maintained oil bath air filter is far superior to readily available paper filters.

Dean
 
In my opinion, the switch to paper filters was for the following reasons:
Easire to switch element than it is to service oil bath, especially when you occasionally have to clean the "steel wool" element..less labor involved
More profit in selling element for $$ than a few ounces of motor oil
Dont know about longer motor life, probably same if oil bath is properly serviced.(growing up, I never remember the one on the Super A being touched)
Like everything else, probably goes back to bean counters and $$
 
(quoted from post at 08:05:16 06/12/14) In my opinion, the switch to paper filters was for the following reasons:
Easire to switch element than it is to service oil bath, especially when you occasionally have to clean the "steel wool" element..less labor involved
More profit in selling element for $$ than a few ounces of motor oil
Dont know about longer motor life, probably same if oil bath is properly serviced.(growing up, I never remember the one on the Super A being touched)
Like everything else, probably goes back to bean counters and $$

I am confident that the main reason was serviceability. How often did the greater number of those oil bath filters REALLY get serviced? In dusty conditions I have found that the paper filters on my modern tractors really need cleaning every day.
 
and yet. these 70 year old tractors are still running.

Are you taking into account oil technology upgrades since the 60's or are you only focusing on 1 single upgrade that may effect engine life.

You do realize that it is skewed data if you make 5 changes to an engine system.. then attribute sucess to a single one. .. ;) just sayin..
 
(quoted from post at 13:59:17 06/12/14) and yet. these 70 year old tractors are still running.

Are you taking into account oil technology upgrades since the 60's or are you only focusing on 1 single upgrade that may effect engine life.

You do realize that it is skewed data if you make 5 changes to an engine system.. then attribute sucess to a single one. .. ;) just sayin..

That's not skewed data.... that's called marketing. :lol:
 
I was working in a tractor dealership in the 70s I saw 4020 JD go from coming in for overhauls @ 3000 to 4000 hrs go to 6000 to 7000 hrs and the air cleaners were pretty much the only change.
 
while modern paper 2 or 3 stage filters do a good job, they can be a pain in truly dirt dust conditions.
My modern tractor's pre-stage has to be blown out very often.
Like said, the main reason for the switch was probably ease of dealer service and making endless money on filters.
Original oil bath filters have been getting dunked to rinse them out, add some old oil and back in service with no $ spent for 70 years.

And just my opinion, but in their day, working a very dusty field all day, an oil style filter will keep chugging along even filthy, plug a paper filter with dust and you are done right there.....

For the poster, if you want paper, do it right, scavenge a modern tractors air filter system and adapt it to your machine
 
There are 100,000 model T still around that didn't even have an air filter. But the society of automotive engineers goes with the paper filters as going a better job.
 
i know guys that won't even service their oil bath air filter PER oil change.

if you look at the manual you should be servicing that thing daily.

If you do that.. you should be fine.

disposable fitlers were great for dealerships.

throw away and sell you another one. no mess.. not like dumping a cup of oil... IE.. servicing an oil bath is a lil more labor.. but less $$ as you can only sell the customer a half quart oil.

big money in throw away filters.

it's ALWAYS about the money...
 

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