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John Deere Tractors Discussion Forum
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JD B air filter

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B-maniac

02-05-2006 11:47:05




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Just having a brain storm. Any opinions on altering the insides of the original style air cleaner to accept a readily available pleated paper type modern air filter cartridge. Seems it would have a lot less restriction,need less maint.,be undetectable and with a carb adj. could even add a little power. I believe there are enough of these around that altering an original shouldn't make anyone cry. Nobody but the owner will ever know it. ????

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B-maniac

02-05-2006 19:06:13




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 Re: JD B air filter in reply to B-maniac, 02-05-2006 11:47:05  
This forum is great! Without even lifting a wrench,I get a cut by cut on how to do it,AND a dyno report. Nice to see there are some other "thinkers" out there who don't mind sharing what they have learned. A person can't live long enough to learn everything the hard way. I will consider all of your comments when making my decision. Thanks.



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Mike M

02-05-2006 12:00:09




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 Re: JD B air filter in reply to B-maniac, 02-05-2006 11:47:05  
I've had some people over and run their tractors on my dyno. Most of them come up with somekinda idea they think will make them gain alot of power. Well they usually don't gain much and alot of times their ideas actually loose power. I have ran tractors without the air inlet on the carb. and got the same HP as when the air cleaner system is all hooked up. I think that leaving the oil out has helped (maybe 1 hp)? I have seen the biggest gains by just adjusting the timing while running or using a carb. for the next bigger size tractor if the bore and stroke was altered alot.

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sgtbull

02-05-2006 12:13:13




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 Re: JD B air filter in reply to Mike M, 02-05-2006 12:00:09  
I've already done that on an unstyled B... not for any power increase, but to stop having that oil seepage around the cup... you have to take the entire assembly off the tractor,remove all of the mesh wire, unsolder the center tube and remove it, then drill holes in the center tube at least equal to the area of the tube opening itself. You drill them only in the portion of the tube that will be covered by the filter. Be sure to test fit the filter w/ the oil cup on so its not too low on the tube and hitting the center reservoir in the cup.... I found a NAPA filter that fits the tube snugly but isn't too large for the cannister... (the part # is out in the shed and its cold out, so I don't have it right now.) Then you resolder the tube in place, slide the air filter on, and plug the bottom of the tube w/ a cork...and voila'....new cannister air filter w/ no oil. I noticed no difference in power or any other running characteristic.....I did notice that my air breather cup has been clean for two yrs..... (incidently, its a good idea to go ahead and paint the inside of the cup now, since it still could get moisture in it and rust...help prevent corrosion.) If you are interested, let me know, and i'll get the NAPA filter #. I sold one on ebay a few weeks ago set up for just that for too cheap a price...$25

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