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Farmall & IHC Tractors Discussion Forum
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Oil bath Air breather?

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Bill Gray

01-08-2005 06:57:54




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I need a new breather for my IH 606.
It had a oil bath breather on it. My Question is: what does the oil do? Is there a reason for this type of air filter?

If you did'nt know, I am very new to tractor stuff.....LOL




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sammy the RED

01-09-2005 00:05:28




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 Re: Oil bath Air breather? in reply to Bill Gray, 01-08-2005 06:57:54  
The manual call's for cleaning the cup daily or after 10 hours.
Every 60 hours the whole assembly is to be taken apart and cleaned in kerosene.



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CNKS

01-08-2005 19:13:54




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 Re: Oil bath Air breather? in reply to Bill Gray, 01-08-2005 06:57:54  
The oil traps the dirt. On the type of air cleaners (meaning the whole unit) IH used, much of the dirt is deposited in the cup at the bottom of the unit by centrifugal force. The rest is suppose to be trapped in the mesh inside the sir cleaner body. I hadn't thought of the loss of efficiency at part throttle operation. Makes sense, because at high rpm, there would be more centrifugal force, thus more dirt forced into the bottom of the oil cup. When the tractors were new the recommendation was to operate at full throttle. For tillage operations, there usually wasn't enough power for the more modern "gear up throttle down" thing. The only part throttle use our tractors got was cultivation, which usually was not very dusty.

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Opa A

01-08-2005 16:58:23




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 Re: Oil bath Air breather? in reply to Bill Gray, 01-08-2005 06:57:54  
Modern, dry type, resin impregnated pleated paper air cleaners are at least 99.6% effective at all engine speeds and loads. Properly maintained oil bath air cleaners are about 94% effective at idle and up to 98% effective at full load. Effectiveness drops rapidly if oil level is allowed to diminish. Doesn't sound like much but that means an oil bath air cleaner lets up to 15 times more dirt to enter the engine. Got this information from Donaldson while in tech.

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Darald

01-08-2005 13:27:42




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 Re: Oil bath Air breather? in reply to Bill Gray, 01-08-2005 06:57:54  
Manufactures went away from oil baths because they lost effeciency at less than full throttle. The gear up throttle down mentality caused oil baths to run dirty.



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Bill Gray

01-08-2005 12:28:46




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 Re: Oil bath Air breather? Thanks for the Info g in reply to Bill Gray, 01-08-2005 06:57:54  
Thanks for the info, It makes sense when someone explains it lol..... .Bill



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Nebraska Cowman

01-08-2005 08:30:01




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 Re: Oil bath Air breather? in reply to Bill Gray, 01-08-2005 06:57:54  
Oil bath air cleaners are self-cleaning. The oil continualy washes the filtering mesh and then a couple times a year you just dump and replace the dirty oil.



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CNKS

01-08-2005 19:24:10




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 Re: Oil bath Air breather? in reply to Nebraska Cowman, 01-08-2005 08:30:01  
You are supposed to periodically remove and clean the whole thing--IH says every 60 hours under dusty conditions. I don't remember doing that. The oil cup we cleaned at least weekly, if the tractor was run all week. I believe IH's recommendation was to clean the cup daily under dusty conditions. Of the six old tractors I have, it appears it was more like every 5 years, whether they needed it or not. Wonder how long an engine would last if these recommendations were followed to the letter?

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REA

01-08-2005 08:20:16




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 Re: Oil bath Air breather? in reply to Bill Gray, 01-08-2005 06:57:54  
Hi Bill,

I stand to be corrected, but the oil breather helps keep the dust out of the carburetor better than an air breather. There is less maintenance so less expensive to use. Farmers often operate their equipment where there is very dusty conditions. Though if you are to operate your tractor for pulling at tractor shows, I understand that the air filter is somewhat better because the air intake is optimized. I hope this helps.

Bob

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Bob

01-08-2005 08:53:11




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 Re: Oil bath Air breather? in reply to REA, 01-08-2005 08:20:16  
I believe the correct term is "oil bath air CLEANER", and there's probably a decal on it that identifies it as such.

When I see the term "air breather", I think of the breather on an engine valve cover.



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REA

01-09-2005 05:55:52




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 Re: Oil bath Air breather? in reply to Bob, 01-08-2005 08:53:11  
Bob,
Thanks for the correction. No one would be able to read it on my oil bath air cleaner because they are to old, paint & decals missing.

Bob



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