Help with B7800 air filter

Muleskinner · Apr 11, 2004

I know I posted on this subject last year and started a firestorm, but I am really getting tired of having to blow out my air filter every time I use the tractor in the dust. The filter element is way too small and gets dirty fast. I can do some grading for maybe an hour and it's dirty. I mean real dirty, not just a little dirty but real dirty. /forums/images/graemlins/mad.gif

Has anyone to date thought anymore about how to put a larger size filter on the B7800 series tractor?? After much research on air filters for my Dodge Cummins, I now know I will never use a K&N filter. They get dirty quick and let a lot of silica into the motor. This has been proven by several people having the oil in their trucks analyzed. /forums/images/graemlins/confused.gif

JerryG · Apr 11, 2004

Have you thought about a pre-cleaner?

Junkman · Apr 11, 2004

I don't know how you could adapt it to your tractor, but the old fashioned oil bath air cleaners were one of the best pre cleaners that you could find. The metal fibers coated with oil would trap the sand and would hold it and what it couldn't hold, it would drop down into the oil bath below. It was a nusiance to clean, but it did a good job. If there are any old car junk yards near you, you should be able to pick one up fairly inexpensively. Adapting it to work on your application is a problem that only you can resolve, since you know how much room you have to work with and how you will accomplish mounting. You can duct it with a rubber radiator hose of proper diameter. I have not investigated the possiblilities, but you might even be able to get a oil bath air filter for a off road machine, such as one of the larger bulldozers, etc. You will just have to start thinking "outside of the box" to resolve this one.

Egon · Apr 12, 2004

40 or so years ago the yellow industrial equipment all had dry air filters. Mechanics told me they were more efficent than the oil bath.

As to putting a larger air cleaner on the B7800 find a type of air filter that is very common, go the local used car parts dealer and get the housing, find a place on the tractor to mount it and tie it in to the inlet of the original filter with proper sized hoze.

Make it real fancy and have a chrome job mounted on the hood with piping that seals when you lower the hood.

Egon

Junkman · Apr 12, 2004

I am not suggesting the oil bath in place of, but in conjunction with the dry. In the 1960's GM offered "Desert Packs" which were oil bath air filters mounted before the dry paper filter air cleaners. That way, you got the benefit of both. What one didn't get, the other did. In this case, more is better. /forums/images/graemlins/grin.gif

JerryG · Apr 12, 2004

Here is the type of pre-cleaner that I am speaking of. Sy-klone Pre-Cleaner

Muleskinner · Apr 12, 2004

That's it!!! You have solved the problem. That is one nice pre cleaner. Now I just need to figure out how and where to mount one. I don't want a large pipe sticking out of my hood. They claim the unit can be mounted verticaly or horizontal. One mounted on the side of the tractor would look more appealing I belive. There appears to be no room under the hood to place one.